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Title: | Oceansat-1 derived met-ocean parameters during various stages of monsoon depression of June 1999, along Orissa coastline, east coast of India |
Authors: | Khaladkar, R M Mahajan, P N Narkhedkar, S G Nair, Sathy |
Keywords: | Oceansat-1;Met-ocean parameters;Monsoon depression |
Issue Date: | Jun-2004 |
Publisher: | CSIR |
IPC Code: | Int. Cl. ⁷ G01W 1/00 |
Abstract: | After the launch of Oceansat-1 (IRS-P4) on May 26, 1999, weather scientists got the opportunity to study some of the meteorological and oceanographic (met-ocean) parameters associated with the weather systems formed over the oceanic regions around India, even under cloudy conditions. Oceansat-1 carries multifrequency scanning microwave radiometer (MSMR) which has a capability to provide information of certain parameters viz. sea surface wind speeds (SSW), sea surface temperature (SST), integrated water vapour (IWV) and cloud liquid water content (CLW). A monsoon depression was formed over the Bay of Bengal on 17 June 1999 causing widespread rainfall over Orissa coast and the adjoining regions. Oceansat-1 derived met-ocean parameters were studied during various stages of this depression. The maximum values of these parameters during the life cycle of the depression over the Bay of Bengal were SST : 30º - 31º C, SSW : 16-18 m/s, IWV : 7.0 g/cm², CLW : 90-100 mg/cm². It was observed that SSW, IWV and CLW show high values one to three days before the formation of the depression. High values, shape and steep gradients of the met-ocean parameters give prior indication of formation/intensification of the weather system and its probable location. SST reduced by about 1º-2º after the passage of the low pressure system over the region. |
Page(s): | 113-121 |
URI: | http://hdl.handle.net/123456789/1656 |
ISSN: | 0379-5136 |
Appears in Collections: | IJMS Vol.33(2) [June 2004] |
Files in This Item:
File | Description | Size | Format | |
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IJMS 33(2) 113-121.pdf | 3.07 MB | Adobe PDF | View/Open |
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