近50 a來中國不同流域降水的變化趨勢分析

doi:10.3969/2015jms.0037

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近50 a來中國不同流域降水的變化趨勢分析
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                        10.3969/2015jms.0037
                    
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基金項目:國家自然科學(xué)基金資助項目（41330529，41175077）；江蘇省第四期“333高層次人才培養(yǎng)工程”項目（BRA2014373）

Variation trend of precipitation in different river basins in recent 50 years

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利用我國612個氣象站1961-2010年逐日降水量資料，借助地理信息系統(tǒng)ArcGIS，分析了我國十大流域的年、季節(jié)降水量的時空變化趨勢特征。結(jié)果表明，我國降水主要集中在珠江、東南諸河和長江流域，西北諸河流域降水最少；四季降水量與年降水量的空間分布特征高度相似；降水量均為夏季最多，冬季最少。就年降水量而言，西北諸河流域有變濕趨勢，海河流域和黃河流域有變干趨勢。就降水季節(jié)而言，西南諸河、松花江、西北諸河流域春季有變濕趨勢；東南諸河流域和長江流域夏季有變濕趨勢，海河流域和西南諸河流域夏季有變干趨勢；西北諸河流域秋季有變濕趨勢，長江流域、黃河流域和淮河流域秋季有變干趨勢；松花江流域、西北諸河流域和長江流域冬季有變濕趨勢。

Abstract:

Based on the daily precipitation data of 612 weather stations in China from 1961 to 2010, the spatial and temporal variation trends of annual and seasonal precipitation amount in ten river basins of China were analyzed by the geographic information system ArcGIS. Results show that precipitation in China concentrated mainly in Pearl river basin, Southeast area basin and Yangtze river basin, but seldom occurred in Northwest area basin. The distribution of seasonal precipitation was highly similar to that of annual precipitation, which all presented the most precipitation in summer and the least in winter. The annual precipitation trends show that the Northwest area basin become wet but the Haihe river basin and Yellow river basin become dry. Moreover, the seasonal precipitation trends show that the Southwest area basin, Songhua river basin and Northwest area basin become wet in spring, Southeast area basin and Yangtze river basin become wet but Haihe river basin and Southwest area basin were drying out in summer, Northwest area basin become wet but Yangtze river basin, Yellow river basin and Huaihe river basin were drying out in autumn, Songhua river basin, Northwest area basin and Yangtze river basin become wet in winter.

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譚云娟,邱新法,曾燕,施國萍.近50 a來中國不同流域降水的變化趨勢分析.氣象科學(xué),2016,36(4):494-501 TAN Yunjuan, QIU Xinfa, ZENG Yan, SHI Guoping. Variation trend of precipitation in different river basins in recent 50 years. Journal of the Meteorological Sciences,2016,36(4):494-501

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收稿日期:2015-04-21
最后修改日期:2015-06-04
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在線發(fā)布日期: 2016-09-07
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抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说