D Q R Report

DQRID : D040907.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/27/2004	1830	09/07/2004	2130	Incorrect

Subject:	SGP/SIRS/C1/E13 - Incorrect calibration coefficients
DataStreams:	sgpsirsE13.b1, sgpsirs20sE13.a0, sgpsirs20sC1.a0, sgpsirsE13.00, sgpsirsC1.00, sgpsirsC1.b1
Description:	After the DIR changeout on 8/27, the DLH measurements at the central facility vary significantly between pyrgeometers by as much as 65 Wm^(-2). It was discovered that the two downwelling pyrgeometers destined for C1 and E13 may have been swapped during installation. The instrument mentor is unsure of applied calibration coefficients during this DQR's time period. Backing out new downwelling longwave irradiances would be difficult in this case. Fortunately, the problem period is less than a fortnight.
Suggestions:	Disregard this data.
Measurements:	sgpsirsE13.00: Raw data stream - documentation not supported more sgpsirsE13.b1: down_long_netir down_long_hemisp_shaded_max down_long_hemisp_shaded_std down_long_hemisp_shaded inst_down_long_shaded_case_temp down_long_hemisp_shaded_min inst_down_long_shaded_dome_temp more sgpsirs20sE13.a0: inst_down_long_hemisp_shaded_tp inst_down_long_shaded_case_resist inst_down_long_shaded_dome_resist more sgpsirsC1.b1: down_long_hemisp_shaded_max down_long_hemisp_shaded_std down_long_hemisp_shaded down_long_hemisp_shaded_min inst_down_long_shaded_case_temp inst_down_long_shaded_dome_temp down_long_netir more sgpsirs20sC1.a0: inst_down_long_hemisp_shaded_tp inst_down_long_shaded_dome_resist inst_down_long_shaded_case_resist more sgpsirsC1.00: Raw data stream - documentation not supported more

Close this window