Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/12/2006 | 1200 | 10/05/2006 | 1330 | Incorrect |
Subject: | NIM/SKYRAD/M1 - Tracker inoperative |
DataStreams: | nimskyrad60sM1.b1, nimskyrad20sM1.a0, nimskyradM1.00 |
Description: | Starting on 9/12 the NIM radiometer tracker drifted enough due to sinking supports and a drifting clock that the direct normal measurments (NIP) and the downwelling hemispheric diffuse shortwave measurments (8-48) were adversely affected in the afternoon hours. The shortwave hemispheric global instrument (PSP) and downelling hemispheric longwave shaded1 and shaded2 (PIR) are unaffected by this problem. The tracker problem greatly affected direct measurements and affected the diffuse measurement to a lesser extent. There are no redundant measurements for these instruments. However, during this time range the data collected before local noon (aprox 1140GMT) for all shortwave Skyrad instruments appear to be good. |
Suggestions: | Disregard data during this time range or if necessary use daily data before local noon. |
Measurements: | nimskyrad20sM1.a0: more
nimskyrad60sM1.b1: more nimskyradM1.00: more |