基于TRMM卫星资料的渤海降水遥感估算研究

doi:10.11759 / hykx20141015001

	基于TRMM卫星资料的渤海降水遥感估算研究
其他题名	Precipitation estimation in the Bohai Sea based on TRMM remote sensing data
	姜德娟; 张华 ; 常远勇 ; 李瑞泽
发表期刊	海洋科学
ISSN	1000-3096
	2015-10-15
卷号	39 期号:10 页码:116-124
关键词	降水 Trmm(Tropical Rainfall Measuring Mission) 遥感估算渤海
DOI	10.11759 / hykx20141015001
产权排序	中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室;上海市气象科学研究所;鲁东大学地理与规划学院;
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	降水是全球能量平衡和水分循环中的关键要素,但海洋区域实时、准确的降水观测资料难以获取,因此,遥感卫星资料在海洋降水及全球能量和水分循环研究领域具有十分重要的应用前景。本文基于1998~2012年6个气象站点(岛屿或海岸带)的实测降水资料,评估TRMM(Tropical Rainfall Measuring Mission)V7版本3B42、3B43两个降水产品对渤海降水量的估算精度,在此基础上,分析并揭示渤海区域年、季和月降水量的时空特征。结果表明:在日尺度,3B42产品对渤海降水量的估算效果总体较差,而在月、年尺度,3B42、3B43产品与实测降水量比较接近,而且,3B43产品的估算精度稍高...
中文摘要	Precipitation is a key process in the global energy and water cycle. It is more difficult to accurately measure real-time rainfall of ocean than that of land. The remote sensing data are essential for studying ocean precipitation in global energy and water cycle. In this study, based on the observed rainfall data at 6 climatological stations of island or coastal region during 1998-2012, the performance of 3B42 and 3B43 products of TRMM(Tropical Rainfall Measuring Mission) Version 7 has been assessed over the Bohai Sea. The spatio-temporal characteristics of precipitation in the Bohai Sea have been investigated based on the TRMM data at annual, seasonal and monthly scales. The results showed that at a daily scale, daily precipitation from the 3B42 product of TRMM and at gauge stations was weakly correlated, while at annual and monthly scales, both 3B42 and 3B43 products of TRMM well captured the spatial pattern and temporal variations of precipitation and the 3B43 product had comparatively better performance. In general, the TRMM products slightly underestimated rainfall over the Bohai Sea, especially obvious when the monthly observed rainfall was greater than 300 mm. For the period from1998 to 2012, precipitation over the Bohai Sea showed an inter-annual wet and dry fluctuation with annual mean rainfall of about 631.6 mm. The summer rainfall accounted for 62.0% of the annual rainfall and the maximum average monthly precipitation occurred in July. Spatially, rainfall in the Bohai Sea was higher in the central-south part and lower in the inshore regions. Influenced by atmospheric circulation, the gravity centers of rainfall over the Bohai Sea leaned toward the north-west in summer and toward the east-south in winter.
文章类型	期刊论文
资助机构	中国科学院战略性先导科技专项子课题(XDA11020401) ; 国家自然科学基金项目(40901028 ; 41101331)
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:5576805
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/17355
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室 2.上海市气象科学研究所 3.鲁东大学地理与规划学院
推荐引用方式 GB/T 7714	姜德娟,张华,常远勇,等. 基于TRMM卫星资料的渤海降水遥感估算研究[J]. 海洋科学,2015,39(10):116-124.
APA	姜德娟,张华,常远勇,&李瑞泽.(2015).基于TRMM卫星资料的渤海降水遥感估算研究.海洋科学,39(10),116-124.
MLA	姜德娟,et al."基于TRMM卫星资料的渤海降水遥感估算研究".海洋科学 39.10(2015):116-124.

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