NSA/SKYRAD/C1 - itermittant IRT bias

A problem with the SKYRAD IRT that itermittantly produced a gradual increase in the sky 
temperature measurement then a sudden correction, as compared to AERI, appears to have been 
caused by a combination of a failing IR detector, a poor signal cable, a contaminated 
(with condensation or frost) mirror or lens, and low ambient temperatures. The positive 
bias was apparently not consistant in either frequency or duration but on days when the 
unusual behavior is observed, it usually occurred from about 00:00 to 06:00 local time. 

The instrument was repaired and recalibrated and the signal cable replaced.

• Sky/Cloud Infra-Red Temperature Minima(sky_ir_temp_min)
• Sky/Cloud Infra-Red Temperature Maxima(sky_ir_temp_max)
• Sky/Cloud Infra-Red Temperature Standard Deviation(sky_ir_temp_std)
• Sky/Cloud Infra-Red Temperature(sky_ir_temp)

SGP/ECOR/E1 - ECOR Pressure and Temperature Missing

The pressure and temperature from the CO2/H2O sensor is missing due to a failure of some 
kind.

• average temperature (IGRA internal sensor)(temp_irga)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)

SGP/MFRSR/E27 - Reprocess: Bad Calibration

The instrument was replaced on 20060104 but there was a problem with the calibration file. 
 The calibration issue has now been resolved and a request has been submitted to 
reprocess the data in the time range covered by this DQR.  When that has been accomplished, this 
DQR will be negated.

• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)

• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)

• rejected points for the final fit for the Direct Narrowband Filter4(barnard_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter5(barnard_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter6(barnard_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter3(barnard_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter1(michalsky_rejected_filter1)
• rejected points for the final fit for the Direct Narrowband Filter3(michalsky_rejected_filter3)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter5(michalsky_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter6(michalsky_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter4(michalsky_rejected_filter4)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter6(michalsky_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter2(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter5(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter4(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter3(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter3(barnard_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• rejected points for the final fit for the Direct Broadband(barnard_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter2(barnard_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter1(barnard_lnI_filter1)

• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Rayleigh optical thickness computed for filter 1(Rayleigh_optical_thickness_filter1)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• Rayleigh optical thickness computed for filter 3(Rayleigh_optical_thickness_filter3)
• Rayleigh optical thickness computed for filter 4(Rayleigh_optical_thickness_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• Rayleigh optical thickness computed for filter 2(Rayleigh_optical_thickness_filter2)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• Rayleigh optical thickness computed for filter 5(Rayleigh_optical_thickness_filter5)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter3)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)
• angstrom exponent(angstrom_exponent)
• Indicator of optical depth stability(optical_depth_stability_flag)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)

• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• solar constant for the Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• solar constant for the Direct BroadBand(michalsky_solar_constant_broadband)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• solar constant for the Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• solar constant for the Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• solar constant for the Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• solar constant for the Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• solar constant corrected for solar distance for the Direct BroadBand(barnard_solar_constant_sdist_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• solar constant for the Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• Angstrom exponent(michalsky_angstrom_exponent)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• Angstrom exponent(barnard_angstrom_exponent)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)

TWP/VCEIL/C3 - low receiver sensitivity

The ceilometer reported frequent receiver alarms. There are periods when the receiver 
sensitivity dropped to about 50%. The problem was corrected by replacing the instrument with 
a spare.

• Lowest cloud base height detected.(first_cbh)
• Vertical visibility(vertical_visibility)
• Aerosol volume backscattering coefficient at 355 nm(backscatter)
• SUM of detected and normalized backscatter(sum_backscatter)
• Second lowest cloud base height(second_cbh)
• Third cloud base height(third_cbh)
• Percentage of nominal factory setting (0 to 999%)(receiver_sensitivity)
• Altitude of highest signal(alt_highest_signal)
• Millivolts at internal ADC input (0 to 2500)(background_light)

SGP/SONDE/C1 - Mixed use of RS92-SGP and RS92-KL radiosondes

Because of a manufacturer's production problem, we will be using both RS92-SGP (GPS 
windfinding and RS92-KL (Loran windfinding) radiosondes at the SGP/CF starting February 10, 
2006.  The radiosonde type used for the each sounding may be determined by looking the 
metadata variable "launch_status" in the netCDF data files.

• east longitude for all the input platforms.(lon)
• model zonal wind velocity(u_wind)
• surface wind speed(wspd)
• model meridional wind velocity(v_wind)
• north latitude for all the input platforms.(lat)
• Wind Direction(deg)
• Wind Status(wstat)

NSA/AERI/C1 - Excessive Noise in C1 AERI data

Initially it was believed that the greater noise level in AERI C1 data was due to the 
extended range detector, which has lower sensitivity. However, when the S01 AERI was 
installed next to the C1 AERI and it stabilized on 9/30/2005, it was observed that the noise 
levels on the newly installed S01 AERI were much lower than for the C1 AERI. Therefore, the 
excessive noise of the C1 AERI is not due to the fundamental nature of the extended range 
detector but instead due to failure within the detector. 

The failure could be due to a poor D* value of too high a detector temperature. It could 
also be caused by optical alignment issues. In either case, the spectral radiance data 
have much more noise and that results in larger error bars when using the radiance data, 
especially long wave data as monitored by the LW_HBB_NEN flag.

On 9/30/2005, the S01 AERI, which is next to the C1 AERI, came on-line and is producing 
low noise data. The S01 data should be used instead of the C1 data where low noise 
requirements are needed.

On 6/26/2006, the S01 AERI went offline due to a laser failure.  The C1 AERI was moved to 
the connex where data were within reasonable limits for an extended range detector.  
Beginning 20060701, the C1 data are the preferred AERI data set at the NSA Barrow location.

• Shortwave window radiance average (2510_2515 cm^-1)(shortwaveWindowRadiance2510_2515)
• Longwave elevated air brightness temperature from radiance average (700_705
  cm^-1)(elevatedLayerAirTemp700_705)
• Shortwave window brightness temperature from radiance average (2510_2515 cm^-1)(shortwaveWindowAirTemp2510_2515)
• Characteristic value representing overall shortwave channel responsivity(SWresponsivity)
• Shortwave surface air brightness temperature from radiance average (2295_2300
  cm^-1)(surfaceLayerAirTemp2295_2300)
• AERI LW Scene Variability Spectral Averages (Ch1)(SkyUniformityCh1)
• Shortwave elevated air brightness temperature from radiance average (2282_2287
  cm^-1)(elevatedLayerAirTemp2282_2287)
• Longwave radiance average (675-680 cm^-1) Surface Air(surfaceLayerRadiance675_680)
• Shortwave radiance average (2282_2287 cm^-1) Elevated Air(elevatedLayerRadiance2282_2287)
• The noise equivalent radiance observed in the longwave channel during a sky view
  at 1000 cm^-1(LWskyNEN)
• Logical flag indicating whether longwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using LWskyNEN and
  LWskyNENlimit.(LWskyNENacceptable)
• Longwave surface air brightness temperature from radiance average (675_680
  cm^-1)(surfaceLayerAirTemp675_680)
• The noise equivalent radiance observed in the shortwave channel during a sky
  view at 2500 cm^-1(SWskyNEN)
• Radiance standard deviation during sky view averaged over (985_990 cm^-1)(skyViewStdDevRadiance985_990)
• Radiance standard deviation during sky view averaged over (2295_2300 cm^-1)(skyViewStdDevRadiance2295_2300)
• AERI SW Scene NESR Spectral Averages (Ch2)(SkyNENCh2)
• Characteristic value representing overall longwave channel responsivity(LWresponsivity)
• AERI LW Scene NESR Spectral Averages (Ch1)(SkyNENCh1)
• Radiance standard deviation during sky view averaged over (2510_2515 cm^-1)(skyViewStdDevRadiance2510_2515)
• AERI LW Responsivity Spectral Averages (Ch1)(ResponsivitySpectralAveragesCh1)
• Radiance standard deviation during sky view averaged over (2282_2287 cm^-1)(skyViewStdDevRadiance2282_2287)
• Noise-equivalent Radiance in Hot Blackbody at 1000 cm-1(LW_HBB_NEN)
• AERI SW Responsivity Spectral Averages (Ch2)(ResponsivitySpectralAveragesCh2)
• AERI LW Scene Brightness Temp Spectral Averages (Ch1)(SkyBrightnessTempSpectralAveragesCh1)
• Longwave window radiance average (985_990 cm^-1)(longwaveWindowRadiance985_990)
• Longwave radiance average (700_705 cm^-1) Elevated Air(elevatedLayerRadiance700_705)
• Radiance standard deviation during sky view averaged over (700_705 cm^-1)(skyViewStdDevRadiance700_705)
• Logical flag indicating whether shortwave channel noise equivalent radiance is
  acceptable in sky view (true/false). Determined using SWskyNEN and
  SWskyNENlimit.(SWskyNENacceptable)
• AERI LW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch1)(HBB2minNENestimateNo2Ch1)
• AERI SW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch2)(HBB2minNENestimateNo1Ch2)
• Noise-equivalent Radiance in Hot Blackbody at 2500 cm-1(SW_HBB_NEN)
• Shortwave radiance average (2295_2300 cm^-1) Surface Air(surfaceLayerRadiance2295_2300)
• AERI SW Scene Variability Spectral Averages (Ch2)(SkyUniformityCh2)
• AERI LW HBB 2min NESR Estimate #1 derived from variance during HBB view (Ch1)(HBB2minNENestimateNo1Ch1)
• AERI SW HBB 2min NESR Estimate #2 derived from sequential HBB views (Ch2)(HBB2minNENestimateNo2Ch2)
• AERI SW Scene Brightness Temp Spectral Averages (Ch2)(SkyBrightnessTempSpectralAveragesCh2)
• AERI SW Scene Radiance Spectral Averages (Ch2)(SkyRadianceSpectralAveragesCh2)
• Radiance standard deviation during sky view averaged over (675_680 cm^-1)(skyViewStdDevRadiance675_680)
• Longwave window brightness temperature from radiance average (985_990 cm^-1)(longwaveWindowAirTemp985_990)
• AERI LW Scene Radiance Spectral Averages (Ch1)(SkyRadianceSpectralAveragesCh1)

• Downwelling radiance interpolated to standard wavenumber scale(mean_rad)

NIM/TSI/M1 - Reprocess: Data processing problem

Due to the high aerosol conditions at Niamey, the TSI appeared to be beyond the limits of 
processing the color JPEG image into cloud fraction values. Several attempts to adjust 
the sky filter values used to process the images did not yielded the desired results. The 
processed images indicate an opaque sky cover, even in the absence of clouds.

The problem was corrected by removing the neutral density filter from the lens and 
re-adjusting the sky filter values.

The data can be reprocessed.

• PNG data stream - documentation not supported(png)

• Pixel count: number total thin(count.thin)
• Pixel count: number thin in horizon area(region.horizon.count.thin)
• Pixel count: number total opaque(count.opaque)
• Pixel count: number opaque in horizon area(region.horizon.count.opaque)
• Pixel count: number opaque in zenith circle(region.zenith.count.opaque)
• Sunshine meter(sunny)
• Pixel count: number opaque in sun circle(region.sun.count.opaque)
• Pixel count: number thin in sun circle(region.sun.count.thin)
• Percent opaque cloud(percent.opaque)
• Percentage thin cloud(percent.thin)
• Pixel count: number thin in zenith circle(region.zenith.count.thin)

NIM/MWRP/M1 - IRT Sensor Calibration

Discrepancies between the MWRP and Skyrad IRT were observed in January. The MWRP IRT 
readings were constantly higher than those of the skyrad IRT. Some changes were introduced to 
the MWRP IRT to address the problem (see DQR D060602.2). On May 3, the IRT mirror was 
replaced. After the change in the mirror, the MWRP IRT readings became about 5-8 C lower. On 
June 3 the agreement between MWRP and Skyrad IRT became satisfactory (2-5 degree C 
difference).

It is hard to numerically quantify the difference in the IRT readings caused by the change 
in the mirror. We can only warn the user that between January 1 and June 3 the MWRP 
readings are 8 to 15 degree higher than the skyrad IRT.

• Raw data stream - documentation not supported(raw)

• Zenith-pointing infrared temperature at 10um(infraredTemperature)

• Raw data stream - documentation not supported(raw)

SGP/SIRS/E21 - Roosting birds in field of view

The RBDD (Rotating Bird Deterrent Device) installed at E21 to prevent turkey vultures from 
roosting on the instrument boom failed resulting in noisy NIP (Short Direct Normal) and 
PSP (Short Global Hemispheric) data and a spike occurring around 2230 UTC everyday due to 
obstruction of the field of view.

Problem is intermittant due to moving birds.  Use data with discretion.  Follow ARM 
(DQMS3) flag recommendations for QC flags 02 or 03 found in section 5.1.4 of the SIRS handbook:
http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)
• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)

• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)

SGP/EBBR/E22 - Fluxes Incorrect When Soil Heat Flow #3 Out of Range

When soil heat flow #3 exceeded the range limit in the EBBR program, it was replaced with 
9999es.  This caused the ave_shf and the sensible and latent heat fluxes to be incorrect.

• soil heat flow at the surface 1(g1)
• 5 cm soil heat flow, site 1(shf1)
• corrected sensible heat flux(h)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• average surface soil heat flow at the surface(ave_shf)
• latent heat flux(e)

SGP/EBBR/E8 - Sensible and Latent Heat Flux Suspect

The left humidity sensor produced large spikes frequently.  This resulted in incorrect 
measurements of vapor pressure gradient and thus calculations of sensible and latent heat 
flux.

• top vapor pressure(vp_top)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• top relative humidity(hum_top)
• corrected sensible heat flux(h)
• bottom relative humidity(hum_bot)
• bottom vapor pressure(vp_bot)

• bottom relative humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• top relative humidity(hum_top)
• top vapor pressure(vp_top)

• Left relative humidity(mv_hum_l)

TWP/GNDRAD/C3 - IRT failed

The IRT began to fail on 4/7/2006 and failed completely (apparently due to the internal 
power supply) on 4/27. It was replaced on 5/18.

• Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)
• Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
• Effective Surface (Skin) Temperature(sfc_ir_temp)
• Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)

SGP/TSI/C1 - Birds obstructing view

Birds were frequently in the the field-of-view and soiling the mirror, affecting the 
visible sky image and resulting processed cloud fraction image. Bird deterant spikes were 
installed on top of the camera housing and arm on 5/16 which prevented their perching on the 
camera so that the impact on the sky image was reduced. But birds were still present 
around the edges of the mirror until additional spikes were installed on top of the four 
corners of the enclosure on 6/14.

• PNG data stream - documentation not supported(png)

• (MPEG data stream - documentation not yet available)

• JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

SGP/MFRSR/E12 - Signal cable failure

A problem with the signal cable caused all channels to flat line frequently during the 
dates covered by this DQR.  The cable was replaced on 5/23/2006.

• solar constant corrected for solar distance for the Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• solar constant for the Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• solar constant for the Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• solar constant for the Direct BroadBand(michalsky_solar_constant_broadband)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• Angstrom exponent(barnard_angstrom_exponent)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• solar constant for the Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• solar constant for the Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• solar constant corrected for solar distance for the Direct BroadBand(barnard_solar_constant_sdist_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• Angstrom exponent(michalsky_angstrom_exponent)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• solar constant for the Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• solar constant for the Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)

• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)

• log(irradiance) for the Direct Narrowband Filter1(barnard_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter2(barnard_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter3(barnard_rejected_filter3)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Broadband(barnard_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter3(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter4(michalsky_lnI_filter4)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter5(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter6(michalsky_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter6(michalsky_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter3(barnard_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter5(michalsky_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter2(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• Airmasses(michalsky_airmass)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• rejected points for the final fit for the Direct Narrowband Filter1(michalsky_rejected_filter1)
• rejected points for the final fit for the Direct Narrowband Filter3(michalsky_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter4(michalsky_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter6(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter5(barnard_rejected_filter5)
• Airmasses(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter4(barnard_rejected_filter4)

• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• angstrom exponent(angstrom_exponent)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• Indicator of optical depth stability(optical_depth_stability_flag)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter3)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• Rayleigh optical thickness computed for filter 2(Rayleigh_optical_thickness_filter2)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• Rayleigh optical thickness computed for filter 4(Rayleigh_optical_thickness_filter4)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Rayleigh optical thickness computed for filter 5(Rayleigh_optical_thickness_filter5)
• Rayleigh optical thickness computed for filter 3(Rayleigh_optical_thickness_filter3)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• Rayleigh optical thickness computed for filter 1(Rayleigh_optical_thickness_filter1)
• surface pressure(surface_pressure)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Airmasses(airmass)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)
• Optical depth from TOMS satellite(TOMS_optical_depth)

• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Detector Temperature(head_temp)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)

NIM/MET/M1  - Optical Rain Gauge Failure

The optical rain gauge on the met system did not record precipitation during this time 
period.

• Precipitation rate mean(precip_rate_mean)
• Precipitation rate maximum(precip_rate_max)
• Precipitation rate minimum(precip_rate_min)
• Precipitation rate standard deviation(precip_rate_sd)

NIM/ECOR/M1 - Data Suspect for NW and East Wind Directions

problem will remain for the entire extend of the NIM deployment.

• rotated covariance uw(cvar_rot_uw)
• vw covariance(cvar_vw)
• rotated covariance wc(cvar_rot_wc)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• CO2 flux(fc)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• corrected sensible heat flux(h)
• latent heat flux(lv_e)
• rotated covariance vw(cvar_rot_vw)
• rotated mean w(mean_rot_w)
• mean water vapor concentration (q)(mean_q)
• covariance wq(cvar_wq)
• rotated covariance wt(cvar_rot_wt)
• rotated covariance wq(cvar_rot_wq)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• momentum flux (dynamic)(k)
• mean co2 concentration (c)(mean_c)
• uw covariance(cvar_uw)
• covariance wc(cvar_wc)
• mean value of \spike\ w samples(mean_spk_w)
• wT covariance(cvar_wt)
• mean w (vertical) wind component(mean_w)
• friction velocity(ustar)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)

SGP/ECOR/E10 - Reprocess: Wind Direction Incorrect

It was discovered that the E10 ECOR boom is aligned 17 degrees to the west of true north.  
Therefore, all wind direction data for the stated period is 17 degrees too high.  
Subtract 17 degrees from the wind direction to give the correct direction.

The E10 configuration file was modified to correct this problem.

• vector averaged wind direction(wind_dir)

SGP/SWATS/E9 - Incorrect reference temperature

The reference temperature was incorrect resulting in incorrect results for soil moisture 
measurements.

• Soil Water Potential, West Profile(soilwatpot_W)
• Reference Thermistor Temperature(tref)
• Volumetric Water Content, East Profile(watcont_E)
• Sensor Temperature Rise, West Profile(trise_W)
• Sensor Temperature Rise, East Profile(trise_E)
• Volumetric Water Content, West Profile(watcont_W)
• Soil Water Potential, East Profile(soilwatpot_E)

NIM/ECOR/M1 - CO2/H20 Fluxes Incorrect

The analog output of the CO2/H2O sensor was not being properly acquired by the sonic or 
the data acquisition system. 

CO2 and latent heat fluxes were therefore incorrect.  All other measurements
were correct.

• CO2 flux(fc)
• latent heat flux(lv_e)

SGP/ECOR/E14 - Corrupt raw ECOR data

Latent heat flux and CO2 flux were missing and frequent missing data for most variables 
due to garbling of data by the ECOR program.

• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• skewness of variable v(skew_v)
• number of bad or out of range u samples(n_bad_u)
• 0=real or 1=dummy value of lv(real_lv)
• average temperature (IGRA internal sensor)(temp_irga)
• rotated covariance vc(cvar_rot_vc)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• corrected sensible heat flux(h)
• number of w samples removed due to spikes(n_spk_w)
• Down-boom wind velocity (u)(mean_u)
• mixing ratio(mr)
• wT covariance(cvar_wt)
• 0=real or 1=dummy value of mr(real_mr)
• covariance wq(cvar_wq)
• Vertical angle of wind(phi)
• rotated variance u(var_rot_u)
• latent heat flux(lv_e)
• number of bad or out of range q samples(n_bad_q)
• number of v samples removed due to spikes(n_spk_v)
• specific heat of moist air(cp)
• standard deviation of wind direction(std_wind_dir)
• covariance vq(cvar_vq)
• number of valid w samples(n_good_w)
• number of t samples removed due to spikes(n_spk_t)
• skewness of variable q(skew_q)
• friction velocity(ustar)
• covariance uv(cvar_uv)
• covariance of qc(cvar_qc)
• rotated covariance wq(cvar_rot_wq)
• covariance uq(cvar_uq)
• number of valid v samples(n_good_v)
• standard deviation of wind elevation angle(std_elev)
• rotated covariance uc(cvar_rot_uc)
• number of bad or out of range c samples(n_bad_c)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• variance of variable c(var_c)
• uw covariance(cvar_uw)
• rotated covariance wt(cvar_rot_wt)
• rotated covariance wc(cvar_rot_wc)
• covariance uc(cvar_uc)
• rotated covariance uv(cvar_rot_uv)
• number of bad or out of range w samples(n_bad_w)
• number of valid c samples(n_good_c)
• number of bad or out of range v samples(n_bad_v)
• CO2 flux(fc)
• number of valid u samples(n_good_u)
• covariance wc(cvar_wc)
• rotated variance w(var_rot_w)
• Retrieved water vapor density profile(rho)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• covariance ut(cvar_ut)
• rotated covariance uw(cvar_rot_uw)
• mean w (vertical) wind component(mean_w)
• rotated variance v(var_rot_v)
• vector averaged wind direction(wind_dir)
• rotated covariance uq(cvar_rot_uq)
• number of c samples removed due to spikes(n_spk_c)
• Cross-boom wind velocity (v)(mean_v)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• rotated mean w(mean_rot_w)
• kurtosis of variable t(kurt_t)
• kurtosis of variable u(kurt_u)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• kurtosis of variable v(kurt_v)
• rotated covariance vw(cvar_rot_vw)
• covariance of tc(cvar_tc)
• covariance vc(cvar_vc)
• skewness of variable w(skew_w)
• 0=real or 1=dummy value of cp(real_cp)
• mean co2 concentration (c)(mean_c)
• rotated covariance vq(cvar_rot_vq)
• kurtosis of variable w(kurt_w)
• number of bad or out of range t samples(n_bad_t)
• momentum flux (dynamic)(k)
• mean value of \spike\ w samples(mean_spk_w)
• number of valid t samples(n_good_t)
• rotated mean v(mean_rot_v)
• number of u samples removed due to spikes(n_spk_u)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of valid q samples(n_good_q)
• vector averaged wind speed(wind_spd)
• average voltage of IRGA cooler(mean_cooler)
• variance of variable q(var_q)
• skewness of variable t(skew_t)
• variance of variable w(var_w)
• skewness of variable u(skew_u)
• mean horizontal wind speed(mean_rot_u)
• covariance of tq(cvar_tq)
• number of q samples removed due to spikes(n_spk_q)
• kurtosis of variable c(kurt_c)
• mean water vapor concentration (q)(mean_q)
• variance of variable v(var_v)
• mean value of \spike\ u samples(mean_spk_u)
• variance of variable t(var_t)
• rotated covariance ut(cvar_rot_ut)
• skewness of variable c(skew_c)
• latent heat of vaporization(lv)
• variance of variable u(var_u)
• number of samples with bad sonic status flag(n_bad_son_ic)
• rotated covariance vt(cvar_rot_vt)
• vertical (elevation) wind angle(elev)
• kurtosis of variable q(kurt_q)
• covariance vt(cvar_vt)
• mean value of \spike\ v samples(mean_spk_v)

SGP/ECOR/E21 - Missing Data

Data was missing during most of this period, except for a few daytime hours,
for various reasons, including a hard disk space problem and communications problems.

• uw covariance(cvar_uw)
• skewness of variable u(skew_u)
• wT covariance(cvar_wt)
• kurtosis of variable t(kurt_t)
• number of valid q samples(n_good_q)
• covariance uq(cvar_uq)
• skewness of variable v(skew_v)
• mean value of \spike\ v samples(mean_spk_v)
• number of bad or out of range q samples(n_bad_q)
• covariance vt(cvar_vt)
• number of v samples removed due to spikes(n_spk_v)
• rotated covariance uw(cvar_rot_uw)
• mean co2 concentration (c)(mean_c)
• skewness of variable q(skew_q)
• number of u samples removed due to spikes(n_spk_u)
• friction velocity(ustar)
• number of samples with bad sonic status flag(n_bad_son_ic)
• number of c samples removed due to spikes(n_spk_c)
• number of bad or out of range t samples(n_bad_t)
• altitude above sea levelaltunits(alt)
• standard deviation of wind elevation angle(std_elev)
• mean value of \spike\ u samples(mean_spk_u)
• covariance uv(cvar_uv)
• specific heat of moist air(cp)
• vw covariance(cvar_vw)
• number of valid t samples(n_good_t)
• vertical (elevation) wind angle(elev)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• rotated variance w(var_rot_w)
• skewness of variable w(skew_w)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance uv(cvar_rot_uv)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of valid w samples(n_good_w)
• rotated covariance vw(cvar_rot_vw)
• rotated mean v(mean_rot_v)
• rotated covariance vc(cvar_rot_vc)
• 0=real or 1=dummy value of cp(real_cp)
• covariance vq(cvar_vq)
• average voltage of IRGA cooler(mean_cooler)
• kurtosis of variable v(kurt_v)
• number of bad or out of range w samples(n_bad_w)
• covariance uc(cvar_uc)
• variance of variable u(var_u)
• Retrieved water vapor density profile(rho)
• rotated variance v(var_rot_v)
• number of t samples removed due to spikes(n_spk_t)
• number of valid u samples(n_good_u)
• 0=real or 1=dummy value of rho(real_rho)
• number of w samples removed due to spikes(n_spk_w)
• number of q samples removed due to spikes(n_spk_q)
• covariance of qc(cvar_qc)
• number of valid v samples(n_good_v)
• mean water vapor concentration (q)(mean_q)
• kurtosis of variable w(kurt_w)
• mean value of \spike\ w samples(mean_spk_w)
• momentum flux (dynamic)(k)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• kurtosis of variable u(kurt_u)
• average temperature (IGRA internal sensor)(temp_irga)
• Time offset of tweaks from base_time(time_offset)
• rotated covariance wc(cvar_rot_wc)
• mean horizontal wind speed(mean_rot_u)
• covariance of tq(cvar_tq)
• mixing ratio(mr)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• rotated variance u(var_rot_u)
• variance of variable t(var_t)
• number of bad or out of range c samples(n_bad_c)
• rotated mean w(mean_rot_w)
• 0=real or 1=dummy value of lv(real_lv)
• standard deviation of wind direction(std_wind_dir)
• covariance vc(cvar_vc)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• corrected sensible heat flux(h)
• covariance of tc(cvar_tc)
• rotated covariance wq(cvar_rot_wq)
• variance of variable w(var_w)
• skewness of variable c(skew_c)
• skewness of variable t(skew_t)
• 0=real or 1=dummy value of mr(real_mr)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance ut(cvar_rot_ut)
• east longitude for all the input platforms.(lon)
• variance of variable v(var_v)
• rotated covariance wt(cvar_rot_wt)
• variance of variable c(var_c)
• vector averaged wind speed(wind_spd)
• CO2 flux(fc)
• mean w (vertical) wind component(mean_w)
• number of valid c samples(n_good_c)
• covariance ut(cvar_ut)
• latent heat flux(lv_e)
• kurtosis of variable q(kurt_q)
• covariance wq(cvar_wq)
• north latitude for all the input platforms.(lat)
• vector averaged wind direction(wind_dir)
• number of bad or out of range v samples(n_bad_v)
• latent heat of vaporization(lv)
• Vertical angle of wind(phi)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• Time offset from base_time(base_time)
• kurtosis of variable c(kurt_c)
• number of bad or out of range u samples(n_bad_u)
• Cross-boom wind velocity (v)(mean_v)
• variance of variable q(var_q)
• covariance wc(cvar_wc)
• rotated covariance vt(cvar_rot_vt)
• rotated covariance uc(cvar_rot_uc)
• rotated covariance vq(cvar_rot_vq)
• Down-boom wind velocity (u)(mean_u)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)

GEC/SUOMI/X1 - Temperature, RH Sensor Failure at Site SG27 (Barrow)

The temperature and relative humidity sensors failed at this location, causing the 
temperature to read -51 degC and the RH to read 100% constantly.  This results in a bias in the 
retrieved precipitable water vapor (PWV).

• Temperature used to determine the backscatter profile(temperature)
• Relative humidity scaled, by total column amount from MWR(rh)
• Pi factor (conversion between wet delay and PWV)(pifact)
• Precipitable water vapr, from MWR (through lssonde)(pwv)

GEC/SUOMI/X1 - Temperature/Relative Humidity/Pressure Sensors Not Reporting at Site SA39 
(Darwin)

During this period at the Darwin site (SA39) the meteorological sensors (temperature, 
relative humidity, and pressure) were not reporting.  This results in missing or incorrect 
retrievals of precipitable water vapor (PWV).

• Final dry delay(final_dry_delay)
• Temperature used to determine the backscatter profile(temperature)
• Relative humidity scaled, by total column amount from MWR(rh)
• Pi factor (conversion between wet delay and PWV)(pifact)
• pressure at constant pressure surface(pres)
• Wet Delay(wet_delay)
• Precipitable water vapr, from MWR (through lssonde)(pwv)

TWP/VCEIL/C2 - Time offset

On 7/14/2006, I found that the ceilometer time was 8m 36s slow, the PC time display (lower 
right taskbar) was frozen at "22:24", and AboutTime was not running. Corrected it on 
7/17 by running AboutTime so that 19:03:29 became 19:12:05. This also corrected the frozen 
display on the Windows98 taskbar. 

I am not sure of the start time of this problem but there were several other Windows 
related issues that had to be corrected on 5/14 with indications of inappropriate access via 
Remote Administrator on 5/13. I do not know if the time offset was a sudden or gradual 
change.

• Aerosol volume backscattering coefficient at 355 nm(backscatter)
• Flag indicating aeri retrieval status(status_flag)
• Percentage of nominal factory setting (0 to 999%)(laser_pulse_energy)
• Third cloud base height(third_cbh)
• Time offset of tweaks from base_time(time_offset)
• Time offset from base_time(base_time)
• Lowest cloud base height detected.(first_cbh)
• Warning and alarm status bits(status_string)
• distance to center of range bin after correcting for offset in sync(range)
• Millivolts at internal ADC input (0 to 2500)(background_light)
• Percentage of nominal factory setting (0 to 999%)(receiver_sensitivity)
• Vertical visibility(vertical_visibility)
• Laser temperature(laser_temperature)
• Altitude of highest signal(alt_highest_signal)
• 6 character string describing instrument measurement parameters(measurement_parameters)
• Second lowest cloud base height(second_cbh)
• Degrees from vertical (-15 to +90)(tilt_angle)
• Detection status. See details(detection_status)
• Millivolts at internal ADC input(window_contamination)
• SUM of detected and normalized backscatter(sum_backscatter)

NSA/SKYRAD/C2 - Summer solstice shading of radiometers

On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP 
(global hemispheic shortwave measurement) radiometers are shaded by other instruments or 
support structures. Shading azimuths have been determined for this site.  The radiometer 
mentor suggests not using the data from the NIP and PSP radiometers when the sun is within 
the following azimuth bounds (typically from May 8th to August 5th of each year):
Instr   Obstruction   AzStart   AzEnd
NIP     rad table     356       17
PSP     mfrsr         341       353

Note: There are a number of objects near the NW,N and NE horizon that may affect sunrise 
data near the summer soltice.

• PSP1 unshaded standard deviation(psp1_sd)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• PSP shaded standard deviation(psps_sd)
• PSP shaded mean(psps_mean)
• NIP maximum(nip_max)
• NIP mean(nip_mean)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• PSP1 unshaded maximum(psp1_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• NIP minimum(nip_min)
• NIP standard deviation(nip_sd)
• PSP1 unshaded minimum(psp1_min)
• PSP shaded minimum(psps_min)
• PSP1 unshaded mean(psp1_mean)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• PSP shaded maximum(psps_max)

NSA/SKYRAD/C1 - Summer solstice shading of radiometers

On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP 
(global hemispheic shortwave measurement) radiometers are shaded by other instruments or 
support structures.  Shading azimuths have been determined for this site.  The radiometer 
mentor suggests not using the data from the NIP and PSP radiometers when the sun is 
within the following azimuth bounds (typically from May 8th to August 5th of each year):
Instrmt Obstruction     AzStart     AzEnd     
NIP     rad table       346         358
NIP     met tower       13          15
PSP     mfrsr           6           16

• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• NIP maximum(nip_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• NIP standard deviation(nip_sd)
• NIP minimum(nip_min)
• PSP1 unshaded minimum(psp1_min)
• PSP shaded maximum(psps_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• NIP mean(nip_mean)
• PSP shaded minimum(psps_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• PSP shaded mean(psps_mean)
• PSP1 unshaded maximum(psp1_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• PSP1 unshaded standard deviation(psp1_sd)
• PSP shaded standard deviation(psps_sd)
• PSP1 unshaded mean(psp1_mean)

SGP/EBBR/E27 - Sensible, Latent, and Average Soil Heat Fluxes Sometimes Incorrect

The Soil Heat Flow #1 sensor kept going offscale.

Sensible and Latent heat fluxes and the ave_shf were affected and sometimes
incorrect.

• 5 cm soil heat flow, site 1(shf1)
• average surface soil heat flow at the surface(ave_shf)
• soil heat flow at the surface 1(g1)
• corrected sensible heat flux(h)
• latent heat flux(e)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)

• Soil heat flow 1(mv_hft1)

NIM/MET/M1 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric pressure(atmos_pressure)

TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric pressure(atmos_pressure)

NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric Pressure(AtmPress)

NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric Pressure(AtmPress)

SGP/EBBR/E27 - Most Measurements Suspect

The wrong EBBR program was used at this site.  Therefore, most of the measurements are 
suspect.

Note: Mentor reports reprocessing will not correct this problem.

• Resultant wind speed(res_ws)
• specific humidity(q)
• altitude above sea levelaltunits(alt)
• bottom relative humidity(hum_bot)
• Reference Thermistor Temperature(tref)
• pressure at constant pressure surface(pres)
• top relative humidity(hum_top)
• north latitude for all the input platforms.(lat)
• Time offset of tweaks from base_time(time_offset)
• scalar wind speed(wind_s)
• temperature of the top humidity sensor chamber(thum_top)
• temperature of the bottom humidity sensor chamber(thum_bot)
• wind direction (relative to true north)(wind_d)
• Home signal(home)
• top vapor pressure(vp_top)
• bottom air temperature(tair_bot)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• Time offset from base_time(base_time)
• top air temperature(tair_top)
• east longitude for all the input platforms.(lon)
• bottom vapor pressure(vp_bot)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• 0-5 cm change in soil heat storage with time, site 2(ces1)
• Reference Thermistor Temperature(tref)
• temperature of the top humidity sensor chamber(thum_top)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• Soil moisture 5 (mass water/mass dry soil)(sm5)
• specific humidity(q)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• Resultant wind speed(res_ws)
• 5 cm soil heat flow, site 5(shf5)
• Soil moisture 4 (mass water/mass dry soil)(sm4)
• Soil moisture 1 (mass water/mass dry soil)(sm1)
• 0-5 cm change in soil heat storage with time, site 2(ces2)
• soil heat flow at the surface 5(g5)
• soil heat flow at the surface 3(g3)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil moisture 3 (mass water/mass dry soil)(sm3)
• top relative humidity(hum_top)
• soil heat flow at the surface 2(g2)
• soil heat flow at the surface 1(g1)
• top vapor pressure(vp_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• bottom relative humidity(hum_bot)
• bottom air temperature(tair_bot)
• 0-5 cm integrated soil temperature, site 4(ts4)
• 0-5 cm integrated soil temperature, site 2(ts1)
• north latitude for all the input platforms.(lat)
• soil heat flow at the surface 4(g4)
• wind direction (relative to true north)(wind_d)
• altitude above sea levelaltunits(alt)
• Soil heat capacity 5(cs5)
• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• Time offset from base_time(base_time)
• pressure at constant pressure surface(pres)
• 0-5 cm integrated soil temperature, site 3(ts3)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• bottom vapor pressure(vp_bot)
• east longitude for all the input platforms.(lon)
• Time offset of tweaks from base_time(time_offset)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• top air temperature(tair_top)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• 5 cm soil heat flow, site 2(shf2)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• 5 cm soil heat flow, site 3(shf3)
• Soil moisture 2 (mass water/mass dry soil)(sm2)
• scalar wind speed(wind_s)
• 5 cm soil heat flow, site 4(shf4)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• 5 cm soil heat flow, site 1(shf1)
• average surface soil heat flow at the surface(ave_shf)
• corrected sensible heat flux(h)
• temperature of the bottom humidity sensor chamber(thum_bot)

• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Battery(bat)
• Left air temperature(tair_l)
• north latitude for all the input platforms.(lat)
• Soil temperature 3(rr_ts3)
• Temperature of left humidity sensor chamber(rr_thum_l)
• Soil temperature 4(rr_ts4)
• Soil moisture 2(r_sm2)
• east longitude for all the input platforms.(lon)
• scalar wind speed(wind_s)
• Soil temperature 5(rr_ts5)
• Right air temperature(tair_r)
• Soil moisture 3(r_sm3)
• Left relative humidity(mv_hum_l)
• Time offset from base_time(base_time)
• Soil moisture 4(r_sm4)
• Time offset of tweaks from base_time(time_offset)
• Soil heat flow 1(mv_hft1)
• Net radiation(mv_q)
• Soil heat flow 3(mv_hft3)
• Soil heat flow 4(mv_hft4)
• Soil heat flow 5(mv_hft5)
• Right relative humidity(mv_hum_r)
• Soil temperature 1(rr_ts1)
• Atmospheric pressure(mv_pres)
• Signature(signature)
• altitude above sea levelaltunits(alt)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Soil moisture 1(r_sm1)
• Soil temperature 2(rr_ts2)
• Wind direction (relative to true north)(mv_wind_d)
• Soil heat flow 2(mv_hft2)
• Home signal(mv_home)

TWP/SMET/C2 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric pressure(atmos_pressure)

TWP/SMET/C3 - Reprocess: Barometric Data Changed from hPa to kPa

Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.

• Atmospheric pressure(atmos_pressure)