Dynamics of orographic rainfall

Authors

  • R. P. SARKER
  • K.C. SINHA RAY
  • U. S. DE

DOI:

https://doi.org/10.54302/mausam.v29i1.2899

Keywords:

orographic, rainfall, Western Ghats

Abstract

A two-dimensional dyn1mical model for orographic rainfall was developed earlier (Sarker 1966, 1967) with particular reference to the Western Ghats. The model assumes a saturated atmosphere with neutral static stability. In the present paper this model has been applied for some more cases in Western Ghats and also for some cases in Khasi and Jaintia hills. With the model the terrain induced vertical velocities have been computed and the same have been used to compute rainfall. The computed rainfall distribution agrees well with the observed rainfall distribution both for Western Ghats and Khasi and Jaintia hills during the active monsoon situations. The peak in rainfall distribution is seen to be purely an orographic effect.

Some modifications have been made in the model for its application during the weak monsoon situations. The results for the various c1ses are discussed vis-à-vis  the different synoptic situations.

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Published

01-01-1978

How to Cite

[1]
R. P. . SARKER, K. S. . RAY, and U. S. . DE, “Dynamics of orographic rainfall”, MAUSAM, vol. 29, no. 1, pp. 335–348, Jan. 1978.

Issue

Vol. 29 No. 1 (1978): MAUSAM

Section

Research Papers

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