| Description |
DATA REPROCESSED and CORRECTED:
After a long data gap on 05/25/2005, presumably a power outage, short_direct_normal (NIP) was showing incorrect value as well as incorrect calibration coefficients in the data logger program. The SIRS. E13 data logger was power cycled (6/2/2005 GMT) and the correct program loaded into the SIRS data logger and storage module. The data during this time range were reprocessed to apply the correct calibration coefficients for Short_direct_normal data.
The data were archived in September 2016. Please retrieve the reprocessed data for use in your analysis.
You may find these data using the ARM Discovery tool at the following link:
http://www.archive.arm.gov/discovery/#v/results/s/finst::sirs/fsite::sgp/ffac::sgp.E1
ORIGINAL DQR CATEGORY: Red( Incorrect)
REPROCESSED and CORRECTED DATA ARCHIVED:2016-09
REPROCESS IDENTIFICATION NUMBER: RID 318
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--- ORIGINAL DQR DESCRIPTION ---
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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 |
- down_long_hemisp_shaded_max (Downwelling longwave hemispheric irradiance, shaded pyrgeometer, maxima)
- down_long_netir (Downwelling longwave hemispheric net infrared)
- down_long_hemisp_shaded_min (Downwelling longwave hemispheric irradiance, shaded pyrgeometer, minima)
- inst_down_long_shaded_case_temp (Instantaneous downwelling pyrgeometer case thermistor temperature, shaded pyrgeometer)
- down_long_hemisp_shaded (Downwelling longwave hemispheric irradiance, shaded pyrgeometer)
- up_long_hemisp_std (Upwelling longwave hemispheric irradiance, pyrgeometer, standard deviation)
- down_long_hemisp_shaded_std (Downwelling longwave hemispheric irradiance, shaded pyrgeometer, standard deviation)
- up_long_hemisp (Upwelling longwave hemispheric irradiance, pyrgeometer)
- short_direct_normal (Shortwave direct normal irradiance, pyrheliometer)
- up_long_netir (Upwelling longwave hemispheric net infrared)
- inst_up_long_dome_temp (Instantaneous upwelling pyrgeometer dome thermistor temperature, pyrgeometer)
- inst_up_long_case_temp (Instantaneous upwelling pyrgeometer case thermistor temperature, pyrgeometer)
- up_long_hemisp_min (Upwelling longwave hemispheric irradiance, pyrgeometer, minima)
- short_direct_normal_min (Shortwave direct normal irradiance, pyrheliometer, minima)
- short_direct_normal_max (Shortwave direct normal irradiance, pyrheliometer, maxima)
- inst_down_long_shaded_dome_temp (Instantaneous downwelling pyrgeometer dome thermistor temperature, shaded pyrgeometer)
- short_direct_normal_std (Shortwave direct normal irradiance, pyrheliometer, standard deviation)
- up_long_hemisp_max (Upwelling longwave hemispheric irradiance, pyrgeometer, maxima)
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