迎风坡降水对中国东南地区降水贡献的估测*

南京大学学报(自然科学版) ›› 2010, Vol. 46 ›› Issue (6): 625–630.

迎风坡降水对中国东南地区降水贡献的估测*

徐昕, 王其伟** , 王元

出版日期:2015-04-07 发布日期:2015-04-07
作者简介: (南京大学中尺度灾害性天气教育部重点实验室, 大气科学学院, 南京, 210093)
基金资助:
国家自然科学基金( 40705019, 40775034)

On the contribution of upslope precipitation tothe observational precipitation over southeastern China

X u Xin, Wang Qi Wei, Wang Yuan

Online:2015-04-07 Published:2015-04-07
About author: ( Key Laboratory of Mesoscale Severe Weather/M inistry of Education and School of Atmospheric Sciences,
Nanjing University, Nanjing, 210093, China)

摘要/Abstract

摘要： 本文利用 2001- 2007年中国东南地区 84 个观测台站的逐日降水资料, 0 ? 5? 0 ? 5?的中国地形资料, 以及日本气象厅 20 km 分辨率的再分析风场、温度场和湿度场资料, 研究了迎风坡降水对中国
东南地区观测降水的可能贡献. 研究发现, 中国东南地区北部迎风坡降水对观测降水的贡献最大, 而中部地区迎风坡降水对观测降水的贡献最小. 迎风坡降水占观测降水的比例与地形梯度的经向分布基本
一致, 表明地形因素对东南地区的降水有着重要的影响.

Abstract: Possible contribution of upslope precipitation to the observational precipitation over southeastern China is studied using the daily precipitation data of 84 stations and 0 ? 5 ? 0?5? topography data. The reanalysis datasets of
wind, temperature and humidity with a resolution of 20 km 20 km from Japan M eteorological Agency are used to calculate the upslope precipitation. The results show that upslope precipitation has the largest contribution to the
observational precipitation in the northern part of southeastern China, while it is much smaller in the central region. The meridional distribution of upslope precipitation in the observational precipitation is in good agreement with that
of topography gradient, indicating the notable influence of topography on the precipitation over southeastern China.

徐昕, 王其伟** , 王元
. 迎风坡降水对中国东南地区降水贡献的估测*
[J]. 南京大学学报(自然科学版), 2010, 46(6): 625–630.

X u Xin, Wang Qi Wei, Wang Yuan
. On the contribution of upslope precipitation tothe observational precipitation over southeastern China
[J]. Journal of Nanjing University(Natural Sciences), 2010, 46(6): 625–630.

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