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Spatial variability and rainfall characteristics of Kerala

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Abstract

Geographical regions of covariability in precipitation over the Kerala state are exposed using factor analysis. The results suggest that Kerala can be divided into three unique rainfall regions, each region having a similar covariance structure of annual rainfall. Stations north of 10‡N (north Kerala) fall into one group and they receive more rainfall than stations south of 10‡N (south Kerala). Group I stations receive more than 65% of the annual rainfall during the south-west monsoon period, whereas stations falling in Group II receive 25–30% of annual rainfall during the pre-monsoon and the north-east monsoon periods. The meteorology of Kerala is profoundly influenced by its orographical features, however it is difficult to make out a direct relationship between elevation and rainfall. Local features of the state as reflected in the rainfall distribution are also clearly brought out by the study.

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References

  • Ananthakrishnan R, Parthasarthy B and Pathan J M 1979 Meteorology of Kerala;Contributions to Marine Sciences 123–125

  • Ananthakrishnan R and Soman M K 1988 The onset of the southwest monsoon over Kerala: 1901-1980;J. Climatol. 8 283–296

    Article  Google Scholar 

  • Basist A and Bell G D 1994 Statistical relationships between topography and precipitation patterns;J. Climate 7 1305–1315

    Article  Google Scholar 

  • Carter M M and Elsner J B 1996 Convective rainfall regions of Puerto Rico;Int. J. Climatol. 16 1033–1043

    Article  Google Scholar 

  • Das P K 1995The Monsoons (National Book Trust of India) 88

  • Gadgil S, Yadumani, Joshi N V 1993 Coherent rainfall zones of the Indian region;Int. J. Climatol. 13 547–566

    Article  Google Scholar 

  • Krishnamurthi T N 1985 Summer monsoon experiment — a review;Mon. Weather Rev. 113 1590–1626

    Article  Google Scholar 

  • Lin Y L, Chao Sen, Wang Ting An, Kaplan L M and Weglarz R P 2001 Some common ingredients for heavy orograhic rainfall;Weather and forecasting 16 633–660

    Article  Google Scholar 

  • Pico R 1974The Geography of Puerto Rico (Chicago: Aldine Publishing Company) pp. 26–32

    Google Scholar 

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Authors and Affiliations

  1. Department of Atmospheric Sciences, Cochin University of Science and Technology, Fine Arts Avenue, 682 016, Cochin, India

    Anu Simon & K. Mohankumar

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  1. Anu Simon
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  2. K. Mohankumar
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Simon, A., Mohankumar, K. Spatial variability and rainfall characteristics of Kerala. J Earth Syst Sci 113, 211–221 (2004). https://doi.org/10.1007/BF02709788

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  • DOI: https://doi.org/10.1007/BF02709788

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