SGP/SONDE/C1 - Bad RH Data

The RH values during the first half of this sounding oscillate between reasonable values 
and near-zero values.  The oscillation is irregular and seems to be related to failure of 
the RH sensor heating process.

• Surface dew point temperature(dp)
• Relative humidity inside the instrument enclosure(rh)

SGP/SONDE/C1 - Bad RH Data

The RH values during the first part of this sounding oscillate between reasonable values 
and near-zero values.  The oscillation seems to be related to failure of the RH sensor 
heating process.

• Surface dew point temperature(dp)
• Relative humidity inside the instrument enclosure(rh)

SGP/SONDE/C1 - Surface pressure incorrect

I think the operator inadvdertently transposed to digits when entering the surface 
pressure value.  The value entered is 987.0 hPa but the value shown in the raw data file at 
launch is 978.0.  As a result, the absolute altitudes in this sounding will be slightly 
incorrect as will be the ascent rate during the first 30 seconds of flight.

• Ascent Rate(asc)
• Dummy altitude for Zeb(alt)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke at launch on this sounding.  All of the temperature-related 
data (tdry, rh, dp) are incorrect.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)

SGP/SONDE/C1 - Broken temperature sensor

The temperature sensor broke shortly after launch on this sounding.  All of the 
temperature-related data (tdry, rh, dp) are incorrect.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)

SGP/SMOS/E13 - 6-month Calibration Checks

During the time periods specified, the SMOS.E13 tower was lowered for 6-month Calibration 
Checks.  During these times wind data are incorrect and temperature and humidity data may 
be incorrect.

Note, exact times when tower was down or maintenance was being performed is sometimes 
unknown.  Users should use the remaining data from these days with caution.

Calibration results are available from the OMIS database at 
    
http://www.ops.sgp.arm.gov:591/smos6cal/default.htm 
To view all 6-month calibration reports leave the date time entry blank.

• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• Minimum Temperature(min_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)

• Barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

SGP/SONDE/C1 - Temperature sensor broke high into the sounding

The temperature sensor on this radiosonde appeared to break 56 minutes and 22 seconds into 
the sounding at an altitude of 16570 m.  All the data below this point are good; only 
the data above this point to the end of the sounding (88 minutes and 14 seconds) are bad.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)

SGP/MFRSR/C1  - shadowband misalignment

During the time period specified, the shadowband was misaligned.  Portions of the data 
have acceptable shading and can be used by experienced data users applying appropriate 
screening.

• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Direct Normal Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Fields flagged by callang:\n,(callang_flags)
• Narrowband Direct Normal Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Direct Normal Broadband Irradiance(direct_normal_broadband)
• Diffuse Hemispheric Irradiance, MFRSR(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)

• Indicator of optical depth stability(optical_depth_stability_flag)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• Angstrom exponent(angstrom_exponent)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• 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_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)

• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Direct Normal Broadband Irradiance(direct_normal_broadband)
• Fields flagged by callang:\n,(callang_flags)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Diffuse Hemispheric Irradiance, MFRSR(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 3(direct_normal_narrowband_filter3)

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

• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• Angstrom exponent(barnard_angstrom_exponent)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• 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)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• 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
  Filter1(barnard_good_fraction_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• 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 Broadband(barnard_number_points_broadband)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• 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 Broadband(barnard_good_fraction_broadband)
• Angstrom exponent(michalsky_angstrom_exponent)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)

SGP/SONDE/C1 - Incorrect surface temperature

The operator entered a the surface temperature incorrectly on this sounding.  The sonde 
data file shows the temperature as 33.5 degC but the operations log shows it as 3.5 degC.  
The first temperature recorded by the sonde after launch is 3.7 degC, consistent with the 
typical early morning inversion.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)

SGP/SONDE/C1 - Scheduled Soundings Missed

The following scheduled sonde launches were missed due to computer 
system failures:

20040116.2330
20040117.0530
20040117.1130
20040117.1730
20040118.0530
20040121.0530

• Surface dew point temperature(dp)
• base time(base_time)
• Mean Wind Speed(wspd)
• U-component(u_wind)
• Relative humidity inside the instrument enclosure(rh)
• lat(lat)
• Ascent Rate(asc)
• Retrieved pressure profile(pres)
• Wind Direction(deg)
• Wind Status(wstat)
• lon(lon)
• Dry bulb temperature(tdry)
• Time offset of tweaks from base_time(time_offset)
• V-component(v_wind)
• Dummy altitude for Zeb(alt)

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

SGP/SMOS/E13 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/MFRSR/C1 - Missing data

Data are missing and unrecoverable.

• lat(lat)
• Fields flagged by callang:\n,(callang_flags)
• Hemispheric Broadband Irradiance (Approximate), MFRSR(hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Time offset of tweaks from base_time(time_offset)
• Narrowband Direct Normal Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Dummy altitude for Zeb(alt)
• lon(lon)
• base time(base_time)
• Diffuse Hemispheric Irradiance, MFRSR(diffuse_hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Datalogger Supply Voltage(logger_volt)
• Narrowband Direct Normal Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Direct Normal Broadband Irradiance(direct_normal_broadband)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)

• Rayleigh optical thickness computed for filter 5(Rayleigh_optical_thickness_filter5)
• lon(lon)
• Indicator of optical depth stability(optical_depth_stability_flag)
• Rayleigh optical thickness computed for filter 3(Rayleigh_optical_thickness_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)
• Rayleigh optical thickness computed for filter 1(Rayleigh_optical_thickness_filter1)
• Rayleigh optical thickness computed for filter 4(Rayleigh_optical_thickness_filter4)
• lat(lat)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• Optical depth from TOMS satellite(TOMS_optical_depth)
• Angstrom exponent(angstrom_exponent)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• Rayleigh optical thickness computed for filter 2(Rayleigh_optical_thickness_filter2)
• Time offset of tweaks from base_time(time_offset)
• Airmasses(airmass)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• surface pressure(surface_pressure)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• 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_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)

• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• lat(lat)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Hemispheric Broadband Irradiance (Approximate), MFRSR(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Diffuse Hemispheric Irradiance, MFRSR(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• Narrowband Direct Normal Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Detector Temperature(head_temp)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Direct Normal Broadband Irradiance(direct_normal_broadband)
• Fields flagged by callang:\n,(callang_flags)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Time offset of tweaks from base_time(time_offset)
• lon(lon)
• Datalogger Supply Voltage(logger_volt)

• lon(lon)
• rejected points for the final fit for the Direct Narrowband Filter1(michalsky_rejected_filter1)
• Time offset of tweaks from base_time(time_offset)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter3(barnard_rejected_filter3)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• Airmasses(michalsky_airmass)
• Airmasses(barnard_airmass)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• Dummy altitude for Zeb(alt)
• log(irradiance) for the Direct Narrowband Filter5(michalsky_lnI_filter5)
• base time(base_time)
• log(irradiance) for the Direct Narrowband Filter6(michalsky_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter4(michalsky_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter3(michalsky_rejected_filter3)
• rejected points for the final fit for the Direct Broadband(barnard_rejected_broadband)
• rejected points for the final fit for the Direct Narrowband Filter5(michalsky_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter4(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• lat(lat)
• log(irradiance) for the Direct Narrowband Filter1(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter6(michalsky_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter2(barnard_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter3(barnard_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter4(barnard_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter2(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• rejected points for the final fit for the Direct Narrowband Filter5(barnard_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter3(michalsky_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter6(barnard_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)

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

SGP/SONDE/C1 - DigiCORAIII failed, replaced with S01/S02 launches

The digiCORA-III failed on Saturday 2004-01-17.  The operators reported that they were 
unable to load the software and conduct normal soundings.	Following procedure, they 
conducted the regular soundings by using the S01/S02 systems as allowed by the AIRS IOP schedule.
The netCDF header fields "input_source" and "facility_id" will mention which of the 
S01/S02 systems was used in these launches.

• lon(lon)
• lat(lat)
• Dummy altitude for Zeb(alt)

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

SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry

The output precision of the following variables was increased 20060928

alt  changed from 1m to 0.1m
dp   changed from 0.1degC to 0.01degC
pres changed from 0.1 hPa to 0.01 hPa
RH   changed from 1%RH to 0.01%RH
tdry changed from .1degC to 0.01degC

Note that the increase in precision does not necessarily imply an increase in accuracy.  
Users are cautioned to continue to use their best scientific judgement when using these or 
any other data.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)
• Retrieved pressure profile(pres)
• Dummy altitude for Zeb(alt)