Some diabatic indices of the monsoon circulation in the Indian region |
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| Authors: | A I Degtyarev |
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| Institution: | (1) Laboratory of Complex Monitoring, Institute of Global Climate and Ecology, Roshydromet and Russian Academy of Sciences, ul. Glebovskaya 20b, Moscow, 107258, Russia |
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| Abstract: | The influence of outgoing longwave radiation anomalies on precipitation rates is studied based on the NCEP/NCAR reanalysis during the period of the summer monsoon circulation in the Indian region. The outgoing longwave radiation data are analyzed for 1987 (dry monsoon) and 1988 (wet monsoon) separately for the Arabian Sea, India, and the Bay of Bengal. It is shown that negative outgoing longwave radiation anomalies correspond to a wet Indian monsoon, and positive anomalies are associated with a dry monsoon. Calculations using the reanalysis enable the construction of a numerical algorithm of the interaction of outgoing longwave radiation, convection, and precipitation rates in the monsoon regions. The results obtained in this work are important in the verification of corresponding parameterizations of numerical atmospheric models. |
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