DQR ID | Subject | Data Streams Affected |
---|
D021211.12 | NSA/GNDRAD/C1 - Noisy PIR Data | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021211.2 | NSA/GNDRAD/C1 - IRT instrument maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021211.6 | NSA/GNDRAD/C1 - IRT data noisy | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.1 | NSA/GNDRAD/C1 - Instrument Maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.10 | NSA/GNDRAD/C1 - Unreasonable PSP Data | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.2 | NSA/GNDRAD/C1 - PSP erroneously replaced by B&W | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.3 | NSA/GNDRAD/C1 - Instrument maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.4 | NSA/GNDRAD/C1 - Bad calibrations applied | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.6 | NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.7 | NSA/GNDRAD/C1 - Data corrupted by brief spike | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.8 | NSA/GNDRAD/C1 - Rad instruments shaded by shelter | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D021212.9 | NSA/GNDRAD/C1 - PSP Data corrupted by brief spike | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D030301.1 | NSA/GNDRAD/C1 - No power to IRT | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
D031216.1 | NSA/GNDRAD/C1 - IRT cable failure | nsagndrad60sC1.b1 |
D031216.2 | NSA/GNDRAD/C1 - IRT returned to vendor | nsagndrad60sC1.b1 |
D040919.1 | NSA/GNDRAD/C1 - IRT power failure | nsagndrad60sC1.b1 |
D041013.3 | NSA/GNDRAD/C1 - Frosting/Condensation | nsagndradC1.00, nsagndrad20sC1.a1, nsagndrad60sC1.b1 |
D050825.3 | NSA/GNDRAD/C1 - Power Disconnected Briefly | nsagndrad60sC1.b1 |
D060209.4 | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
D060630.39 | NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error | nsagndrad60sC1.b1 |
D060824.1 | NSA/GNDRAD/C1 - Incorrect calibration coefficients | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1 |
Subject: | NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1
|
Description: | 100 W/m2 dip in the PSP data; NET data also affected. Possibly
due to operators working around the instruments. |
Measurements: | nsagndrad60sC1.b1: - NET mean(net_mean)
- PSP1 unshaded standard deviation(psp1_sd)
- NET standard deviation(net_sd)
- Net Radiation(net)
- PSP1 unshaded mean(psp1_mean)
- Net Radiation, Standard Deviation(net_std)
- Net Radiation, Minima(net_min)
- PSP1 unshaded minimum(psp1_min)
- Net Radiation, Maxima(net_max)
- PSP1 unshaded maximum(psp1_max)
nsagndrad60sC1.a1: - PSP1 unshaded maximum(psp1_max)
- NET mean(net_mean)
- Net Radiation, Minima(net_min)
- Net Radiation(net)
- NET standard deviation(net_sd)
- Net Radiation, Standard Deviation(net_std)
- PSP1 unshaded mean(psp1_mean)
- PSP1 unshaded minimum(psp1_min)
- Net Radiation, Maxima(net_max)
- PSP1 unshaded standard deviation(psp1_sd)
|
Subject: | NSA/GNDRAD/C1 - Data corrupted by brief spike |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1
|
Description: | There is a unreasonable spike at this time. Simultaneous spikes on the NET, the PSP, and
the PIR. Cause unknown, but most likely related to data logger. |
Measurements: | nsagndrad60sC1.b1: - Net Radiation(net)
- PSP1 unshaded mean(psp1_mean)
- Net Radiation, Standard Deviation(net_std)
- Net Radiation, Maxima(net_max)
- PSP1 unshaded maximum(psp1_max)
- NET mean(net_mean)
- PSP1 unshaded standard deviation(psp1_sd)
- NET standard deviation(net_sd)
- PIR1 unshaded mean(pir1_mean)
- PIR1 unshaded standard deviation(pir1_sd)
- PIR1 unshaded minimum(pir1_min)
- Net Radiation, Minima(net_min)
- PIR1 unshaded maximum(pir1_max)
- PSP1 unshaded minimum(psp1_min)
nsagndrad60sC1.a1: - PSP1 unshaded maximum(psp1_max)
- PIR1 unshaded standard deviation(pir1_sd)
- PIR1 unshaded maximum(pir1_max)
- Net Radiation, Minima(net_min)
- PIR1 unshaded minimum(pir1_min)
- NET standard deviation(net_sd)
- Net Radiation, Maxima(net_max)
- NET mean(net_mean)
- PIR1 unshaded mean(pir1_mean)
- Net Radiation(net)
- Net Radiation, Standard Deviation(net_std)
- PSP1 unshaded mean(psp1_mean)
- PSP1 unshaded minimum(psp1_min)
- PSP1 unshaded standard deviation(psp1_sd)
|
Subject: | NSA/GNDRAD/C1 - Rad instruments shaded by shelter |
DataStreams: | nsagndrad60sC1.a1, nsagndrad60sC1.b1
|
Description: | Each day around 02:00 - 03:30 GMT there is a unexpected decrease
for the PSP irradiance measurement due to a shading problem
associated with the swing set location relative to the instrument
shelter. The GNDRAD NET and MFR instrument data also reflects
this problem. Problem was resolved when the GNDRAD instruments
were moved to the 10 meter tip tower. |
Measurements: | nsagndrad60sC1.b1: - Net Radiation(net)
- PSP1 unshaded mean(psp1_mean)
- Net Radiation, Standard Deviation(net_std)
- Net Radiation, Maxima(net_max)
- PSP1 unshaded maximum(psp1_max)
- NET mean(net_mean)
- PSP1 unshaded standard deviation(psp1_sd)
- NET standard deviation(net_sd)
- PIR1 unshaded mean(pir1_mean)
- PIR1 unshaded standard deviation(pir1_sd)
- PIR1 unshaded minimum(pir1_min)
- Net Radiation, Minima(net_min)
- PIR1 unshaded maximum(pir1_max)
- PSP1 unshaded minimum(psp1_min)
nsagndrad60sC1.a1: - PSP1 unshaded maximum(psp1_max)
- PIR1 unshaded standard deviation(pir1_sd)
- PIR1 unshaded maximum(pir1_max)
- Net Radiation, Minima(net_min)
- PIR1 unshaded minimum(pir1_min)
- NET standard deviation(net_sd)
- Net Radiation, Maxima(net_max)
- NET mean(net_mean)
- PIR1 unshaded mean(pir1_mean)
- Net Radiation(net)
- Net Radiation, Standard Deviation(net_std)
- PSP1 unshaded mean(psp1_mean)
- PSP1 unshaded minimum(psp1_min)
- PSP1 unshaded standard deviation(psp1_sd)
|
Subject: | NSA/GNDRAD/C1 - Frosting/Condensation |
DataStreams: | nsagndradC1.00, nsagndrad20sC1.a1, nsagndrad60sC1.b1
|
Description: | The GNDRAD PIR and IRT comparison was showing the IRT 2-4 W/m^2 greater than the PIR.
Suspected snow or frost on the instrument(s). Corrective maintenance performed 10/15/04 at
21:30 UT. Optics of both instruments were cleaned. Upwelling longwave measurement
agreement restored (+/- 5 W/^2).
Although the relative performance (agreement) of the two instruments improved after
corrective maintenance (+/- 2 W/m^2), no correction is suggested because the agreement remains
with the estimated measurement uncertainty of +/- 4 W/m^2 (IRT) and +/-10 W/m^2 (Inverted
PIR) |
Measurements: | nsagndradC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
nsagndrad60sC1.b1: - Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Standard Deviation(up_long_hemisp_std) - Net Radiation, Standard Deviation(net_std)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Minima(up_long_hemisp_min) - Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
- Effective Surface (Skin) Temperature(sfc_ir_temp)
- Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Maxima(up_long_hemisp_max) - Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
- Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)
nsagndrad20sC1.a1: - Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
- Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
- Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
- Instantaneous PIR1 uncorrected irradiance(pir1_voltage)
- Instantaneous PIR1 dome thermistor(pir1_dome_therm)
- Instantaneous PIR1 case thermistor(pir1_case_therm)
|
Subject: | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors |
DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad60sC1.b1
|
Description: | During the power outage the upwelling global measurement from the PSP instrument shows a
slight increase from -5 to +0 W/m2. This is due to removal of thermal offsets induced by
the AC heater during the power outage. This heater is installed within the PSP
ventilator - it is necessary for the NSA/C1 climate.
The upwelling longwave PIR instrument is unaffected due to case and dome temperature
corrections.
The IRT is AC powered and was not operational during this time period. |
Measurements: | nsagndradC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
nsagndrad20sC1.a0: - Instantaneous Surface Infra-Red Signal(inst_sfc_ir_signal)
nsagndrad60sC1.b1: - Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
Maxima(up_short_hemisp_max) - Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
Minima(up_short_hemisp_min) - Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
- Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
- Effective Surface (Skin) Temperature(sfc_ir_temp)
- Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
Standard Deviation(up_short_hemisp_std) - Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
- Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)
|
Subject: | NSA/GNDRAD/C1 - Incorrect calibration coefficients |
DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1
|
Description: | BarrowC1, Gndrad. On Aug 11th the PSP-US was changed out and the Campbell program was
changed to reflect this. However, an old program that uses the 4 coefficient PIR cal factors
was used. The PIR-UIR was not changed out, however, the logger program coeffs reverted
back to the 4 Coeffcients. The Eppley PIR-UIR coefficients for this S/N 30168F3 are :
K0=0.0, K1(aka k)=.25253, K2= 1.0, K3=-4, Kr=0.0. |
Measurements: | nsagndradC1.00: - Raw data stream - documentation not supported(Raw data stream - documentation not supported)
nsagndrad20sC1.a0: - Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
- Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
- Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
nsagndrad60sC1.b1: - Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Standard Deviation(up_long_hemisp_std) - NET mean(net_mean)
- NET standard deviation(net_sd)
- PIR1 unshaded standard deviation(pir1_sd)
- PIR1 unshaded mean(pir1_mean)
- Net Radiation, Standard Deviation(net_std)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Minima(up_long_hemisp_min) - PIR1 unshaded minimum(pir1_min)
- Net Radiation, Minima(net_min)
- PIR1 unshaded maximum(pir1_max)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
Maxima(up_long_hemisp_max) - Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
- Net Radiation, Maxima(net_max)
nsagndrad20sC1.a1: - Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
- Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
- Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
- Instantaneous PIR1 uncorrected irradiance(pir1_voltage)
- Instantaneous PIR1 dome thermistor(pir1_dome_therm)
- Instantaneous PIR1 case thermistor(pir1_case_therm)
|