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A study on the characteristics of temperature inversions in active and break phases of Indian summer monsoon

DRS at CSIR-National Institute of Oceanography

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Title A study on the characteristics of temperature inversions in active and break phases of Indian summer monsoon
 
Creator Muraleedharan, P.M.
Mohankumar, K.
Sivakumar, K.U.
 
Subject monsoons
temperature inversions
phase changes
 
Description The thermal inversion characteristics during active and break cycles of two consecutive and contrasting monsoon years were studied using GPS radiosonde profiles in Goa (15 degrees 46′ N; 73 degrees 08′ E), located on the west coast of India. The lower tropospheric inversions were associated with the active phase and it dissipated during the break phase due to weakening of the low level jet. A strong secondary inversion also appeared at 5-6 km in the break period. The genesis of both the inversions is linked with advection of warm and dry air from the Arabian and Persian high lands. During the active phase, convection overrides the stability shield provided by the advection induced low level inversion. Associated with the active phase, the temperature difference within the inversion invariably reaches above a threshold of 1 degree C, whereas it is low in break conditions.
 
Date 2013-02-04T04:20:33Z
2013-02-04T04:20:33Z
2013
 
Type Journal Article
 
Identifier Journal of Atmospheric and Solar-Terrestrial Physics, vol.93; 2013; 11-20
no
http://drs.nio.org/drs/handle/2264/4235
 
Language en
 
Relation J_Atmos_Solar-Terr_Phys_93_11.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2012] Elsevier
 
Publisher Elsevier