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Spatial variability of daily rainfall over Orissa, India, during the southwest summer monsoon season by M. Mohapatra; U. C. Mohanty; S. Behera is a Environmental Science article available to read on EtoBox.

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## Abstract Southwest summer monsoon rainfall over Orissa, a state of eastern India, shows characteristic spatial and temporal variability, due to the interaction of basic westerly flow with orography and the synoptic‐scale monsoon disturbances developing over the northern Bay of Bengal and moving west‐northwestwards along the monsoon trough. The aim of this study is to find out the main features of the spatial variability of daily monsoon rainfall over Orissa and associated synoptic systems. Empirical orthogonal function (EOF) analysis is a good tool to filter out the main components from any noise, and this was applied to daily monsoon rainfall (June–September) data of 31 uniformly distributed stations over a period of 20 years (1980–1999). The association of synoptic systems with significant EOFs has been confirmed by analysing daily synoptic systems over Orissa and its neighbourhood during the same period. The first three EOFs in S‐mode may be attributed to good monsoon rainfall in association with low‐pressure systems/cyclonic circulation (LPSC), like lows, depressions, cyclonic storms and cyclonic circulation extending up to the mid‐tropospheric level over the northwest (NW)

Who reads Spatial variability of daily rainfall over Orissa, India, during the southwest summer monsoon season?

Author

M. Mohapatra; U. C. Mohanty; S. Behera

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0899-8418)

Published

2003

Language

EN

Field

Environmental Science (Physical Sciences)