Abstract
An assessment of Outgoing longwave radiation data obtained from polar orbiting and geostationary satellites is made to see which one, is more convenient and useful for the construction of divergence of the wind field for regional models. The availability of OLR data from TIROS-N (polar orbiting) and GOES-IO (geostationary) satellites during 1979 made it possible to assess and explore a statistical relationship among the OLR data and divergence of the wind field at 850 and 2°9 hPa. constructed from the analysls of the Global Experiment data sets. This study reveals a very strong relationship between these fields in the region of deep convective activity and this relationship has also been found to be stronger for geostationary satellite than polar orbiting satellite. The use or this relationship especially over data-sparse tropical oceanic regions for NWP models is suggested.
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