Precipitable water over the tropical Indian Ocean derived from NIMBUS 7 satellite data — A case study |
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| Authors: | M R Ramesh Kumar P M Muralidharan P V Sathe |
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| Institution: | (1) Physical Oceanography Division, National Institute of Oceanography, 403 004 Dona Paula, India |
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| Abstract: | The data from the Scanning Multichannel Microwave Radiometer (SMMR) sensor on board the NIMBUS 7 satellite in the 18 and 21 Ghz channels are used to derive the Precipitable Water (PW) over the tropical Indian Ocean for the period May–September, 1979. The PW values are derived by using both the horizontal and vertical polarization channels. These PW values along with the satellite-derived sea surface temeprature (SST) and the lower tropospheric wind (UW) data reveal the features of the summer monsoon circulation of the tropical Indian Ocean in 1979. Further, the derived PW values from Nimbus 7 SMMR data agree well with features of PW presented by Cadet (1983) inferred from the TIROS—N soundings and FGGE data. |
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