Rain attenuation studies over an earth-space path at a tropical location

被引:34
作者
Chakravarty, Kaustav [1 ]
Maitra, Animesh [1 ]
机构
[1] Univ Calcutta, Inst Radiophys & Elect, SK Mitra Ctr Res Space Environm, Kolkata 700009, India
关键词
Rain rate; Rain attenuation; Earth-space path; Tropical location; ELEVATION ANGLE; GHZ;
D O I
10.1016/j.jastp.2009.10.018
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
The rain rate and rain attenuation measurements have been carried out at Kolkata (22.65 degrees N, 88 45 degrees E), India. a tropical location, since 2004. The measured rain attenuation is compared with the simple attenuation model (SAM) and ITU-R model generated values. The relation between the rain rate and rain attenuation is analyzed for three years data (2005-2007) and a year-to-year variation is noticed. Rain attenuation has been found higher in the pre-monsoon period than in the monsoon months for identical rain rate. Cumulative distributions of rain rate and rain attenuation data along with the respective ITU-R models for three years are also presented. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:135 / 138
页数:4
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