DQR ID | Subject | Data Streams Affected |
---|---|---|
D050420.4 | SGP/SIRS/E13 - Adjust Direct Normal Irradiance | sgp15swfanalsirs1longE13.c1, sgp1swfanalsirs1longE13.c1, sgpsirsE13.00, sgpsirsE13.01 |
D050502.8 | SGP/SIRS/E13 - SWFANAL Data description error | sgp15swfanalsirs1longE13.c1, sgp1swfanalsirs1longE13.c1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/03/2000 | 1330 | 08/15/2001 | 1500 |
Subject: | SGP/SIRS/E13 - Adjust Direct Normal Irradiance |
DataStreams: | sgp15swfanalsirs1longE13.c1, sgp1swfanalsirs1longE13.c1, sgpsirsE13.00, sgpsirsE13.01 |
Description: | Direct normal broadband shortwave irradiance measured by NIP s/n 30585E6 was found to have a 1.76% negative bias when compared in-situ with absolute cavity radiometer measurements taken on August 21, 2000. The estimated measurement uncertainty of the calibration of NIP s/n 30585E6 on July 18, 2000 was -2.2% to +2.8%. Data from NIP s/n 30585E6 can be adjusted according to the in-situ comparisons to reduce the apparent measurement bias. |
Measurements: | sgpsirsE13.01:
sgp15swfanalsirs1longE13.c1:
sgp1swfanalsirs1longE13.c1:
sgpsirsE13.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/01/1995 | 0000 | 10/28/2003 | 2359 |
Subject: | SGP/SIRS/E13 - SWFANAL Data description error |
DataStreams: | sgp15swfanalsirs1longE13.c1, sgp1swfanalsirs1longE13.c1 |
Description: | The long name attribute for the cloud effect fields incorrectly defines the cloud effect to be the difference between the clearskyfit and measured values: "Difference: ***fluxdn_clearskyfit - ***fluxdn_measured (***fcg)" ; The cloud effects are correctly calculated by subtracting the irradiance calculated in the clear sky fit from the measured irradiance. "Difference: ***fluxdn_measured - ***fluxdn_clearskyfit (***fcg)" ; NOTE: this is just a documentation error. The data are correctly calculated. |
Measurements: | sgp15swfanalsirs1longE13.c1:
sgp1swfanalsirs1longE13.c1:
|