Open AccessHeavy rain at Chennai and its relation to cyclonic disturbances
Author(s) -
G. Ganesan,
A. Muthuchami,
A. S. Ponnuswamy
Publication year - 2000
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v51i1.1753
Subject(s) - bengal , storm , monsoon , climatology , environmental science , bay , tropical cyclone rainfall forecasting , meteorology , geography , geology , oceanography , cyclone (programming language) , field programmable gate array , computer science , computer hardware
In this paper an attempt is made to study the characteristics of Heavy Rainfall (HR) and Very Heavy Rainfall (VHR) over Chennai in the North East Monsoon month of October, November and December and the period considered is 1964 to 19%. It is observed that it is mainly the duration which determines whether rainfall would be heavy or very heavy. Defining a system as Depression or Cyclonic Storm or Severe Cyclonic Storm in the Bay of Bengal, the mean rainfall in a System-affected day is 1.5 times that of Non-system-affected day in October and November. No striking differences could be found in intensity and duration characteristics of rainfall between system- affected days and non-system affected days. Even if system induced. heavy rainfall does not occur other thing being normal, the total rainfall of this season can continue to be normal.