Description: | After a long data gap on 5/25/2005, presumably a power outage, the following datastreams
were showing incorrect values as well as incorrect calibration coefficients in the
datalogger program:
down_long_hemisp_shaded (downwelling PIR instrument)
up_long_hemisp (upwelling PIR instrument)
short_direct_normal (NIP instrument)
The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded
into the SIRS datalogger and storage module.
The data during this time range can be recalibrated as follows:
First divide value by incorrectly applied cal coeff (first number) then multiply by
correct cal coeff (second number)
short_direct_normal 120.28 124.58
up_long_netir 0.2386 0.2595
down_long_netir 0.3052 0.2304
Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K),
inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual.
up_long_hemisp
k0 -18.3400 W/m^2\n,
k1 0.2595 W/(m^2*uV)\n,
k2 1.0380 unitless\n,
k3 -2.7420 unitless\n,
kr 0.0007044 K/uV\n,
Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp
(K),inst_down_long_dome_temp(K).
down_long_hemisp_shaded
k0 -11.6300 W/m^2\n,
k1 0.2304 W/(m^2*uV)\n,
k2 1.0190 unitless\n,
k3 -2.4230 unitless\n,
kr 0.0007044 K/uV\n, |
Measurements: | sgpsirsE13.b1: - Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
Deviation(down_long_hemisp_shaded_std) - Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
- Instantaneous Case Temperature(inst_up_long_case_temp)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
- Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
- Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
- Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
Pyrgeometer(inst_down_long_shaded_case_temp) - Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
- Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
- Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
Pyrgeometer(inst_down_long_shaded_dome_temp) - Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
Deviation(up_long_hemisp_std) - Instantaneous Dome Temperature(inst_up_long_dome_temp)
- Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
- Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
- Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
sgpsirs20sE13.a0: - Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
- Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
- Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
Voltage(inst_direct_normal) - 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 Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
Pyrgeometer(inst_down_long_shaded_case_resist) - Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
Pyrgeometer(inst_down_long_shaded_dome_resist)
sgpsirsE13.00: - null(Raw data stream - documentation not supported)
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