Solar eclipse induced impacts on sea/land breeze circulation over Thumba: A case study

被引:26
作者
Subrahamanyam, D. Bala [1 ]
Anurose, T. J. [1 ]
机构
[1] Govt India, Dept Space, Indian Space Res Org, Vikram Sarabhai Space Ctr,Space Phys Lab, Thiruvananthapuram 695022, Kerala, India
关键词
Annular Solar Eclipse; Boundary-layer processes; Sea breeze circulation; Atmospheric boundary layer; SEA-BREEZE; LAYER PARAMETERS; INDIA; FRONT; BAY;
D O I
10.1016/j.jastp.2011.01.002
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
On 15th January 2010, Thumba (8.5 degrees N, 76.9 degrees E), witnessed one of the longest noontime Solar Eclipse centered at 13:14 LT. In the present case study, we report first observations on sensitivity of the sea breeze circulation cell to short-term obscuration in solar irradiance. Temporal evolution of surface layer windspeed segregated into right-angle components along the coastline on eclipse and normal days indicated a significant reduction in the intensity of sea breeze during the period of eclipse. Vertical thickness of the sea breeze cell was confined to 300 m on the eclipse day, whereas it was extending to about 610 m on the control day. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:703 / 708
页数:6
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