Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/14/1994 | 1600 | 09/29/1994 | 1735 |
Subject: | SGP/EBBR/E20 - Net Radiometer Hemisphere Changes |
DataStreams: | sgp5ebbrE20.b1, sgp30ebbrE20.b1, sgp15ebbrE20.b1 |
Description: | The upper hemisphere of the net radiometer at the site was punctured allowing water to collect in the lower (and sometimes upper) section of the sensor. The punctures are most likely the result of migratory birds (a problem that we have experienced almost every year here at ANL also). The punctures (and water in some net radiometers) did not result in obvious invalidation of the data. Whether there is water in the lower hemisphere or not, a small puncture of the upper hemisphere would not have a major effect on the net radiation measurement. Significant amounts of water in the lower hemisphere should have a major effect on nighttime measurements particularly, although that effect is hard to detect in the data. The date when the puncture occurred is approximate - but is certainly no more than two weeks before the hemisphere was replaced. |
Suggestions: | |
Measurements: | sgp30ebbrE20.b1: more
sgp15ebbrE20.b1: more sgp5ebbrE20.b1: more |