Subject: | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors |
DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad60sC1.b1
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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)
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Subject: | NSA/GNDRAD/C1 - Incorrect calibration coefficients |
DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1
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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)
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