Characterization of the Vertical Structure of Coastal Atmospheric Boundary Layer over Thumba (8.5°N, 76.9°E) during Different Seasons

被引：29

作者：

Nair, Sandhya K. ^{[1
]}

Anurose, T. J. ^{[1
]}

Subrahamanyam, D. Bala ^{[1
]}

Kumar, N. V. P. Kiran ^{[1
]}

Santosh, M. ^{[1
]}

Sijikumar, S. ^{[1
]}

Mohan, Mannil ^{[1
]}

Namboodiri, K. V. S. ^{[2
]}

机构：

[1] Govt India, Indian Space Res Org, Dept Space, Space Phys Lab,Vikram Sarabhai Space Ctr, Thiruvananthapuram 695022, Kerala, India

[2] Govt India, Indian Space Res Org, Dept Space, MET Facil,Vikram Sarabhai Space Ctr, Thiruvananthapuram 695022, Kerala, India

来源：

ADVANCES IN METEOROLOGY | 2011年 / 2011卷

基金：

美国国家科学基金会;

关键词：

CENTRAL ARABIAN SEA; INDIAN-OCEAN; INDOEX; BREEZE; MODEL; VARIABILITY; CIRCULATION; IMPACTS; HEIGHTS;

D O I：

10.1155/2011/390826

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Vertical profiles of meteorological parameters obtained from balloon-borne GPS Radiosonde for a period of more than two years are analyzed for characterization of the coastal atmospheric boundary layer (CABL) over Thumba (8.5 degrees N, 76.9 degrees E, India). The study reports seasonal variability in the thickness of three different sublayers of the CABL, namely, mixed layer, turbulent flow, and sea breeze flow. Among the three, the vertical thickness of sea breeze flow showed considerable dominance on the other two throughout the year. Mixed layer heights derived through gradients in virtual potential temperature (theta(v)) showed large seasonal variability with a peak in the Summer and Post-Monsoon. On the other hand, the vertical thickness of turbulent flow remained steady all through the year. Results from the present study indicate that the magnitudes of mixed layer heights are often larger than the turbulent flow thickness.

引用

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