Observations by Multi-channel Scanning Microwave Radiometer (MSMR) for a period of one year are studied using the data collected by IRS-P4 over polar region. It is demonstrated that analysis by passive radiometer is very helpful for monitoring temporal and spatial variation of complex sea-ice cover....
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.8602 http://www.gisdevelopment.net/application/nrm/ocean/pdf/170.pdf |
| Summary: | Observations by Multi-channel Scanning Microwave Radiometer (MSMR) for a period of one year are studied using the data collected by IRS-P4 over polar region. It is demonstrated that analysis by passive radiometer is very helpful for monitoring temporal and spatial variation of complex sea-ice cover. The Brightness Temperature Data (BTD) for different regions, when compared shows an abrupt rise in the values than those expected for the month of October 2000 for a location in the Siberian Sea. Besides, an increase by about 60-70 degrees is found to have taken place over a short interval of 15 days after which it remains constant for about eight months and then decreases gradually. Such a rise is very atypical, as brightness temperature generally does not vary much over long periods of time. Hence, graphical analysis for the surrounding areas and few other areas of the polar region for the same time period has been carried out which shows a similar trend consistently. Consequently, further assistance provided by U.S. National Ice Center in the form of ice charts prepared from DMSP and SSM/I data for East Siberian Sea, one of the areas of our concern, help to confirm and analyze our observations. |
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