Quantitative estimation of orographic precipitation over the Himalayas by using TRMM/PR and a dense network of rain gauges

被引：12
|
作者：
Yatagai, Akiyo [1 ]
Kawamoto, Haruko [1 ]
机构：
[1] Res Inst Human & Nat, Kita Ku, Kyoto 6028047, Japan
来源：
REMOTE SENSING AND MODELING OF THE ATMOSPHERE, OCEANS, AND INTERACTIONS II | 2008年 / 7148卷
关键词：
precipitation; Tropical Rainfall Measuring Mission; Himalayas; high-resolution models;
D O I：
10.1117/12.811943
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
The Precipitation Radar (PR) data acquired by the Tropical Rainfall Measuring Mission (TRMM) over its 10 years of observation can be used to show the monthly rainfall patterns over the Himalayas. To validate and adjust these patterns, we used a dense network of rain gauges to measure daily precipitation over Nepal, Bangladesh, Bhutan, Pakistan, India, Myanmar, and China. We then compared TRMM/PR and rain gauge data in 0.05-degree grid cells (an approximately 5.5-km mesh). Compared to the rain gauge observations, PR systematically underestimated precipitation by 28% to 38% in summer (July-September). Monthly PR climatology was adjusted based on the monthly regressions between the 2 sets of data, and depicted.
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页数：12
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