Characteristics of ABL during active and weak phases of monsoon

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Characteristics of ABL during active and weak phases of monsoon

Show simple item record Dr.Babu, C A Hamza, V 2014-05-17T06:23:49Z 2014-05-17T06:23:49Z 2007
dc.description E:\IMS-1&2ND ISSUE\VAYUMANDAL-2007 IIND\111-131 en_US
dc.description.abstract Understanding of the Atmospheric Boundary Layer (ABL) is imperative in the arena of the monsoon field. Here, the features of the ABL are studied employing Conserved Variable Analysis (CVA) using equivalent potential temperature and humidity. In addition, virtual potential temperature and wind are used during active and weak phases of monsoon. The analysis is carried out utilising the radiosonde observations during the monsoon months for two stations situated in the west coast of India. All these parameters show considerable variations during active and weak monsoon phases in both the stations. The core speed and core height vary with these epochs. The core speed is found to be more than 38 knots in the active monsoon phase around 1.2 km over Trivandrum and around 2 km over Mangalore. But during weak monsoon phase the core wind speed is decreased and core height is elevated over both stations. The wind direction shows an additional along shore component during weak monsoon period. The Convective Boundary Layer (CBL) height shows increase during weak monsoon phase over both stations due to less cloudiness and subsequent insolation. The CBL height during the southwest monsoon is more over Mangalore and is attributed by the orographic lifting in the windward side of the Western Ghats while the influence of the Ghats is less over Trivandrum. en_US
dc.description.sponsorship CUSAT AND CSIR en_US
dc.language.iso en en_US
dc.subject Convective boundary layer en_US
dc.subject Conserved variable analysis en_US
dc.subject Low level Jet stream en_US
dc.subject , thermodynamic structure en_US
dc.title Characteristics of ABL during active and weak phases of monsoon en_US
dc.type Article en_US

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