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Oceanic mixed layer variations during the movement of cyclone along symmetric tracks in the Indian Ocean

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Title Oceanic mixed layer variations during the movement of cyclone along symmetric tracks in the Indian Ocean
 
Creator Deo, A. A.
Ganer, D.W.
Salvekar, P. S.
 
Subject Numerical simulation
Currents
Indian Ocean
Cyclone
Symmetric tracks
Upwelling
Arabian Sea
Bay of Bengal
Mixed layer
 
Description 111-122
The understanding of significant changes in the
oceanic mixed layer is important for dynamical prediction of tropical cyclone.
Present study aims at examining the variations in the upper ocean parameters
during the movement of tropical

cyclone in northern and southern Indian
Ocean, by applying 1½ layer wind driven reduced gravity
ocean model. Different idealized tracks in the Bay of
Bengal and their mirror images in southern hemisphere are
considered, The model produced mixed layer depth, temperature and currents are
compared for northern and southern hemispheric cyclone cases. Also the effect
of latitude for westward moving cyclones in both the hemisphere is
investigated. For this, tracks in the Arabian Sea

and their counter parts in the southern hemisphere
are considered. The maximum cooling found in the wake of cyclone is of the
order of 3 - 4°C, which is comparable with earlier studies and observations.
This significant cooling can cause weakening of the storm. This can be useful
for prediction especially in the event of a cyclonic storm heading towards land
and likely to make land fall. Moreover it is also seen that the mixed layer is
cooled more on the right (left) of the storm track in northern (southern)
hemisphere. This cooling decreases for the storms translating along higher
latitudes implying the sensitivity of the latitudinal location of the storm.
 
Date 2015-02-26T06:10:54Z
2015-02-26T06:10:54Z
2006-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/30620
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.35(2) [June 2006]