| 基于2001～2009年MODIS资料的西藏地区大气可降水量分布特征 |
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| 引用本文： | 陈涛,卓嘎,杜晓辉,余佥贤.基于2001～2009年MODIS资料的西藏地区大气可降水量分布特征[J].高原山地气象研究,2013,33(1):58-61. |
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| 作者姓名： | 陈涛 卓嘎 杜晓辉 余佥贤 |
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| 作者单位： | 1. 西藏高原大气环境科学研究所, 拉萨 850000; |
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| 基金项目： | 公益性行业专项，中国气象局项目，中国气象局项目 |
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| 摘 要： | 利用2001~2009年MODIS近红外的大气可降水的逐月资料,分析了西藏地区大气可降水量时空分布特征及与实际降水量之间的关系。结果表明:西藏大气可降水量时空分布不均匀,空间分布由东南至西北递减;7、8月份大气可降水量最大,夏季大气可降水量占全年的50%;2001~2009年间西藏大气可降水量呈增加趋势,阿里地区、山南地区以及昌都地区增加明显;大气可降水量与实际降水量呈明显负相关,相关系数为-0.688。
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| 关 键 词： | 西藏地区 大气可降水量 时空分布 |
| 收稿时间： | 2012-12-10 |
Distributions of Atmospheric Precipitable Water in Tibet Region Based on MODIS Data during 2001~2009 |
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| CHEN Tao
,
ZHUO Ga
,
DU Xiaohui
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YU Qianxian.Distributions of Atmospheric Precipitable Water in Tibet Region Based on MODIS Data during 2001~2009[J].Plateau and Mountain Meteorology Research,2013,33(1):58-61. |
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| Authors: | CHEN Tao ZHUO Ga DU Xiaohui YU Qianxian |
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| Institution: | 1. Tibet Institute of Plateau Atmospheric and Environmental Science, Lhasa 850000 China;2. Lhasa Meteorological Bureau, Lhasa 850000 China;3. Tibet Meteorological Bureau, Lhasa 850000 China |
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| Abstract: | This paper investigated the spatial and temporal distribution of atmospheric precipitable water(APW) and the connection with natural precipitation in Tibet region using near-infrared monthly MODIS data from 2001 to 2009.Resultsshow that APW is unevenly distributed in Tibet region,APW is gradually decreasing from the southeatern to the northwetern part;APW reached a peak in July and August,and summer APW accounts for 50% of the whole year;APW of 2001~2009 increased in Tibet region,and partial area increased obviously such as Ali,Linzhi and Changdu;APW was negatively related to natural precipitation,with the correlation coefficient-0.688. |
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