TWP/SKYRAD/C1 - Apparent logger problem

Beginning at 0620Z on 13 July, all Manus SKYRAD measurements deviated wildly from expected 
values.  The longwave fluxes climbed to well over the expected maximum of 500 W/m^2 to 
values over 1000 W/m^2.  At the same time, shortwave flux components developed large 
inconsistancies and night-time offsets.  Values had somewhat returned to normal ranges by 
2200Z on 14 July but again developed internal inconsistancies between 0430 and 1900Z on 15 
July.  The instruments appeared to be working normally once again as of 1900Z on 15 July.  
It is not known what caused this period of faulty values but it is thought that an 
electrical surge - perhaps from a lightning storm (though none was reported) may have caused 
the temporary problems.

null

• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Minima(down_long_hemisp_shaded2_min)
• North Latitude(lat)
• Down-welling unshaded pyranometer voltage(down_short_hemisp)
• PIR shaded standard deviation(pirs_sd)
• PSP1 unshaded standard deviation(psp1_sd)
• IRT1 minimum(irt1_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Standard
  Deviation(down_long_hemisp_shaded2_std)
• -180.0 - +180.0(alt)
• Data Logger Temperature(logger_temp)
• Sky Infra Red Temperature Maxima(sky_ir_temp_max)
• lon(lon)
• Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard
  deviation(down_long_hemisp_shaded_std)
• UVB mean(uvb_mean)
• Downwelling Ultra-Violet Irradiance, UV Biometer, Maxima(down_uvb_max)
• External voltage(external_voltage)
• Downwelling longwave hemispheric irradiance, shaded pyrgeometer(down_long_hemisp_shaded)
• NIP maximum(nip_max)
• PIR shaded mean(pirs_mean)
• Downwelling Ultra-Violet Irradiance, UV Biometer, Minima(down_uvb_min)
• Downwelling Ultra-Violet Irradiance, UV Biometer, Standard Deviation(down_uvb_std)
• Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
• PIR1 unshaded standard deviation(pir1_sd)
• Downwelling Ultra-Violet Irradiance, UV Biometer(down_uvb)
• Downwelling Longwave Hemispheric Irradiance, Unshaded Pyrgeometer, Minima(down_long_hemisp_unshaded_min)
• Sky Infra-Red Temperature(sky_ir_temp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
  Deviation(down_short_diffuse_hemisp_std)
• PSP1 mean(psp1_mean)
• PSP1 maximum(psp1_max)
• Downwelling shortwave hemispheric irradiance, pyranometer, maxima(down_short_hemisp_max)
• PIR1 minimum(pir1_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Maxima(down_long_hemisp_shaded1_max)
• UVB maximum(uvb_max)
• Bit data. See details.(bit_data)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• PIR shaded maximum(pirs_max)
• IRT1 maximum(irt1_max)
• Sky infrared temperature, standard deviation(sky_ir_temp_std)
• Downwelling Longwave Hemispheric Irradiance, Unshaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_unshaded_std)
• NIP standard deviation(nip_sd)
• Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
• PIR1 unshaded maximum(pir1_max)
• UVB standard deviation(uvb_sd)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• Internal voltage(internal_voltage)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Longwave Hemispheric Irradiance, Unshaded Pyrgeometer(down_long_hemisp_unshaded)
• PIR1 mean(pir1_mean)
• NIP mean(nip_mean)
• PSP shaded minimum(psps_min)
• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
• Raw data filename(filename)
• Sky Infra-Red Temperature Minima(sky_ir_temp_min)
• PSP shaded mean(psps_mean)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2, Maxima(down_long_hemisp_shaded2_max)
• UVB minimum(uvb_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Minima(down_long_hemisp_shaded1_min)
• PIR shaded minimum(pirs_min)
• NIP minimum(nip_min)
• PSP1 unshaded minimum(psp1_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1(down_long_hemisp_shaded1)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer2(down_long_hemisp_shaded2)
• IRT1 mean(irt1_mean)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer1, Standard
  Deviation(down_long_hemisp_shaded1_std)
• IRT1 standard deviation(irt1_sd)
• Time offset from base_time(time_offset)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling Longwave Hemispheric Irradiance, Unshaded Pyrgeometer, Maxima(down_long_hemisp_unshaded_max)
• PSP shaded maximum(psps_max)
• base time in epoch(base_time)
• Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Minima(down_short_hemisp_min)
• PSP shaded standard deviation(psps_sd)

• Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
• Measured Downwelling Summed Shortwave Irradiance
  (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
• Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
• Clear-sky Fit Estimated Downwelling Diffuse Irradiance to Downwelling Global
  Irradiance Ratio (cdifr)(difratiodn_clearskyfit)
• base time in epoch(base_time)
• Number of 1-minute Cloud Fraction Estimates in the 15-minute Interval (Ncf)(nsamples_cloudfraction)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Number of 1-minute Clear-sky Detections in the 15-minute Interval (Nclr)(nsamples_clearsky_detection)
• Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)
• Time offset from base_time(time_offset)
• Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
• Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
• Difference: sswfluxdn_clearskyfit - sswfluxdn_measured (sswfcg)(sswfluxdn_cloudeffect)
• Number of 1-minute Clear-sky Fit Downwelling Global Shortwave Irradiance
  Estimates in the 15-minute Interval (Ncsw)(nsamples_gswfluxdn_clearskyfit)
• Measured Downwelling Diffuse Irradiance to Downwelling Global Irradiance Ratio
  (difr)(difratiodn_measured)
• Time Offset from base_time_LST(time_offset_LST)
• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
• Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
• Beginning Time of File (LST)(base_time_LST)
• Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
  (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
• Measured Downwelling Global UVB Irradiance (uvb)(guvbdn_measured)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
• site location(site)
• Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
  (calb)(albedosw_clearskyfit)
• Fractional Sky Cover.(cloudfraction)
• Distance from the Earth to the Sun (au)(sun_earth_distance)
• Average over the interval of the standard deviation of difratiodn_measured
  computed using a 3-5 sample window centered at each 1-min sample(difratiodn_measured_stdev)
• Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
• lon(lon)
• Ratio of Measured minus Clear-sky Fit Estimated Downwelling Diffuse Shortwave
  Irradiance to Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance
  (di(difcloudeffect_normalized)
• Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
• Number of 1-minute Measured Downwelling Summed Shortwave Irradiances in the
  15-minute Interval (Nssw)(nsamples_sswfluxdn_measured)

• Clear-sky Fit Coefficient b to Albedo (Albb)(coef_clearsky_albedo_b)
• Clear-sky Fit Coefficient a to Albedo (Alba)(coef_clearsky_albedo_a)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
• Difference: sswfluxdn_clearskyfit - sswfluxdn_measured (sswfcg)(sswfluxdn_cloudeffect)
• Measured Downwelling Global UVB Irradiance (uvb)(guvbdn_measured)
• Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
• Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
  (calb)(albedosw_clearskyfit)
• Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
• Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Distance from the Earth to the Sun (au)(sun_earth_distance)
• lon(lon)
• Clear-sky Detection Flag (clrf)(flag_clearsky_detection)
• Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
• Time Offset from base_time_LST(time_offset_LST)
• Clear-sky Fit Coefficient b to Summed Shortwave Irradiance (CSWb)(coef_clearsky_ssw_b)
• base time in epoch(base_time)
• Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
• Clear-sky Fit Coefficient a to Summed Shortwave Irradiance (CSWa)(coef_clearsky_ssw_a)
• Measured Downwelling Diffuse Irradiance to Downwelling Global Irradiance Ratio
  (difr)(difratiodn_measured)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
• Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
• Clear-sky Fit Coefficient b to Global Shortwave Irradiance (CSWb)(coef_clearsky_gsw_b)
• Clear-sky Fit Coefficient a to Global Shortwave Irradiance (CSWa)(coef_clearsky_gsw_a)
• Measured Downwelling Summed Shortwave Irradiance
  (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
• Time offset from base_time(time_offset)
• Clear-sky Fit Coefficient a to Diffuse Irradiance to Total Irradiance Ratio
  (DFRa)(coef_clearsky_difratio_a)
• Clear-sky Fit Coefficient b to Diffuse Irradiance to Total Irradiance Ratio
  (DFRb)(coef_clearsky_difratio_b)
• site location(site)
• Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
• Clear-sky Offset Coefficient c for Global minus Summed Shortwave Irradiance
  Difference (SCORc)(coef_clearsky_dsw_c)
• Clear-sky Fit Coefficient b to Global minus Summed Shortwave Irradiance
  Difference (SCORb)(coef_clearsky_dsw_b)
• Beginning Time of File (LST)(base_time_LST)
• Clear-sky Fit Coefficient a to Global minus Summed Shortwave Irradiance
  Difference (SCORa)(coef_clearsky_dsw_a)
• Clear-sky Fit Estimated Downwelling Diffuse Irradiance to Downwelling Global
  Irradiance Ratio (cdifr)(difratiodn_clearskyfit)
• Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)
• Date (YYMMDD LST) for which the Coefficients are Applicable(coef_date)
• Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
  (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
• Daily Averaged Distance from the Earth to the Sun (auavg)(sun_earth_distance_dailyaverage)
• Clear-sky Fit Coefficient b to Global UVB Irradiance (UVBb)(coef_clearsky_guvb_b)
• Clear-sky Fit Coefficient a to Global UVB Irradiance (UVBa)(coef_clearsky_guvb_a)

• (Raw data stream - documentation not supported)

• lon(lon)
• Instantaneous PIR2 dome thermistor(pir2_dome_therm)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Unshaded
  Pyrgeometer(inst_down_long_unshaded_case_resist)
• base time in epoch(base_time)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous PIR2 uncorrected irradiance(pir2_uncorr_irradiance)
• Raw data filename(filename)
• Instantaneous Downwelling Pyrgeometer Thermopile, Unshaded Pyrgeometer(inst_down_long_hemisp_unshaded_tp)
• Instantaneous UVB temperature(uvb_temp)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer2(inst_down_long_shaded2_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer2(inst_down_long_shaded2_dome_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Unshaded
  Pyrgeometer(inst_down_long_unshaded_dome_resist)
• Instantaneous PIR1 case thermistor(pir1_case_therm)
• Instantaneous PIR2 case thermistor(pir2_case_therm)
• Instantaneous UVB uncorrected irradiance(uvb_uncorr_irradiance)
• Instantaneous downwelling pyrgeometer dome thermistor resistance, shaded
  pyrgeometer(inst_down_long_shaded_dome_resist)
• Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer2(inst_down_long_hemisp_shaded2_tp)
• Instantaneous PIR1 uncorrected irradiance(pir1_uncorr_irradiance)
• -180.0 - +180.0(alt)
• Time offset from base_time(time_offset)
• Instantaneous Downwelling Ultraviolet Biometer Temperature(inst_down_uvb_temp)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer1(inst_down_long_shaded1_case_resist)
• Instantaneous Uncorrected Downwelling Ultraviolet Irradiance, UV Biometer(inst_down_uvb_irradiance)
• Instantaneous PIR1 dome thermistor(pir1_dome_therm)
• Instantaneous Downwelling Pyrgeometer Thermopile, Shaded Pyrgeometer1(inst_down_long_hemisp_shaded1_tp)
• North Latitude(lat)
• Instantaneous downwelling pyrgeometer thermopile voltage, shaded pyrgeometer(inst_down_long_hemisp_shaded_tp)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer1(inst_down_long_shaded1_dome_resist)

• Downwelling Shortwave Diffuse Hemispheric Irradiance Uncorrected, Pyrgeometer(down_short_diffuse_hemisp_uncorrected)
• base time in epoch(base_time)
• Downwelling Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Backup,
  Maxima(down_long_hemisp_backup_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Best
  Estimate(dsdh_best_estimate)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Detector
  only corrected(dsdh_detector_corrected)
• Upwelling Pyrgeometer Dome Thermistor Temperature(up_long_dome_temperature)
• Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
• Wind #1 Speed(wind_speed_1)
• Wind #2 Speed(wind_speed_2)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
• Temperature(air_temperature)
• Downwelling Shortwave Diffuse Hemispheric Irradiance Uncorrected, Pyrgeometer,
  Maxima(down_short_diffuse_hemisp_uncorrected_max)
• 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Backup(down_long_hemisp_backup)
• Downwelling Pyrgeometer Dome Thermistor Temperature, Backup(down_long_dome_temperature_backup)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Pyrgeometer Case Thermistor Temperature, Backup(down_long_case_temperature_backup)
• Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
• 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• Status flag for Downwelling Shortwave Hemispheric Irradiance, Ventilated
  Pyrgeometer, Detector only corrected(status_dsdh_detector_corrected)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Uncorrected for IR loss, Standard Deviation(down_short_hemisp_uncorrected_std)
• Downwelling Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_long_hemisp_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Uncorrected for IR loss(down_short_hemisp_uncorrected)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Uncorrected for IR loss, Minima(down_short_hemisp_uncorrected_min)
• Wind #1 Direction(wind_direction_1)
• Wind #2 Direction(wind_direction_2)
• lon(lon)
• Downwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(down_long_hemisp_min)
• Vapor Pressure (kiloPascals)(vap_pres)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Barometric pressure(bar_pres)
• Downwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(down_long_hemisp_max)
• Detector Flux, Backup(detector_flux_backup)
• Downwelling Shortwave Diffuse Hemispheric Irradiance Uncorrected, Pyrgeometer,
  Standard Deviation(down_short_diffuse_hemisp_uncorrected_std)
• Solar ZenithAngle(zenith)
• Effective temperature(effective_temperature)
• Status flag for Downwelling Shortwave Hemispheric Irradiance, Ventilated
  Pyrgeometer, Full corrected (Mean absolute deviation)(status_dsdh_full_corrected)
• Downwelling Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Backup,
  Minima(down_long_hemisp_backup_min)
• Cosine of the Solar Zenith Angle(cos_zenith)
• Status flag for Rayleigh limit(status_rayleigh_limit)
• Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• Upwelling Pyrgeometer Case Thermistor Temperature(up_long_case_temperature)
• Full correction mode for Downwelling Shortwave Hemispheric Irradiance,
  Ventilated Pyrgeometer(dsdh_full_corrected_mode)
• Relative Humidity (hybrid-b grid)(rh)
• Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Full
  corrected (Mean absolute deviation)(dsdh_full_corrected)
• Downwelling Shortwave Diffuse Hemispheric Irradiance Uncorrected, Pyrgeometer,
  Minima(down_short_diffuse_hemisp_uncorrected_min)
• Downwelling Shortwave Hemispheric Irradiance, Calculated, Sum of Direct
  Shortwave and Corrected Diffuse Shortwave(down_short_hemisp_sum)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Detector only correction mode for Downwelling Shortwave Hemispheric Irradiance,
  Ventilated Pyrgeometer(dsdh_detector_corrected_mode)
• Status flag for Downwelling Shortwave Hemispheric Irradiance, Ventilated
  Pyrgeometer, Sum of Direct Shortwave and Corrected Diffuse Shortwave(status_down_short_hemisp_sum)
• Total precipitation over one minute sampling period(precip)
• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Downwelling Pyrgeometer Case Thermistor Temperature(down_long_case_temperature)
• Downwelling longwave hemispheric irradiance, pyrgeometer(down_long_hemisp)
• Time offset from base_time(time_offset)
• time_in_seconds_since_volume_start(time)
• Detector flux (Down-welling pyrgeometer thermopile voltage * PIR-DIR calib-coef)
  Calculated value from 20s data(detector_flux)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling Pyrgeometer Dome Thermistor Temperature(down_long_dome_temperature)
• Rayleigh limit(rayleigh_limit)
• Downwelling Longwave Hemispheric Irradiance, Ventilated Pyrgeometer, Backup,
  Standard Deviation(down_long_hemisp_backup_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Uncorrected for IR loss, Maxima(down_short_hemisp_uncorrected_max)