干旱区生态环境知识资源中心(Arid): 黑河流域水汽输送及收支特征

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	黑河流域水汽输送及收支特征
其他题名	Characteristics of Water Vapor Transportation and Budget over the Heihe Drainage Basin
	陆桂华; 徐栋; 何海
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2012
卷号	27 期号:3 页码:510-521
中文摘要	利用NCEP/NCAR逐日再分析资料对黑河流域的水汽输送和收支特征进行了计算分析,结果表明:西风环流使得源于大西洋和北冰洋的水汽成为黑河流域空中水汽的主要来源,流域内水汽输送以自西向东的纬向输送为主,东边界输出强度强于西边界输入强度,纬向净输入量为负;经向输送为自北向南且在强度上不及纬向输送,北边界输入强度强于南边界输出强度,经向净输入量为正。700 hPa气层流域南部的水汽辐合辐散特征随季节变化显著,冬季为水汽辐散区,夏季为水汽辐合区;流域北部没有明显的水汽辐合辐散特征。全流域多年平均水汽输入量为997.3 km~3,输出量为1 046.1 km~3,净输入量-48.8 km~3,20世纪60年代中期以后流域水汽净输入量呈现增加趋势。黑河流域北部荒漠区年内各季均为水汽输出期,中低层大气(地面~500 hPa)为主要的水汽输出层;南部山区年内69月为水汽输入期,低层大气(地面~700 hPa)为水汽输入层,中高层大气(700~300 hPa)为水汽输出层。据大气水平衡原理,黑河流域多年平均蒸发量约为84 km~3。
英文摘要	Based on the NCEP/NCAR re-analysis daily mean data from 1948 to 2008,the characteristics of water vapor transportation and budget over the Heihe Drainage Basin were analyzed in this passage.The results showed that,influenced by westerly circulation,Atlantic and Arctic oceans were the main water vapor source over the Heihe Drainage Basin.Water vapor was mainly latitudinally transported from west to east,and the intensity of water vapor exported from east boundary of the Heihe Drainage Basin was greater than that imported from west boundary,the intensity of water vapor imported from north boundary was also greater than that exported from south boundary.In the layer of 700 hPa,convergence and divergence of the southern Heihe Drainage Basin changed seasonally,it is a water vapor divergence area in winter,but a convergence area in summer.The northern Heihe Drainage Basin had no such obvious characteristics all the year round.The annual influent water vapor amount is about 997.3 km~3,effluent water vapor amount is about 1046.1 km~3,and the net water vapor amount is about 48.8 km~3.The net water vapor amount tended to increase since the 1960s.Water vapor in the northern desert area of the Heihe Drainage Basin exported whole year,and it mainly exported from middle and lower atmosphere(surface to 500 hPa).June to September was the water vapor net influent period in the southern mountain area of the Heihe Drainage Basin,and lower atmosphere(surface to 700 hPa) was the main influent layer,middle and upper atmosphere(700 to 300 hPa) was the main enffuent layer.Annual evaporation amount is about 84 km~3 according to the atmospheric water balance.
中文关键词	黑河流域 ; 水汽输送 ; 水汽辐合辐散 ; 水汽收支
英文关键词	Heihe Drainage Basin water vapor transportation water vapor convergence and divergence water vapor budget
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4493145
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229187
作者单位	河海大学, 南京, 江苏 210098, 中国
推荐引用方式 GB/T 7714	陆桂华,徐栋,何海. 黑河流域水汽输送及收支特征[J],2012,27(3):510-521.
APA	陆桂华,徐栋,&何海.(2012).黑河流域水汽输送及收支特征.自然资源学报,27(3),510-521.
MLA	陆桂华,et al."黑河流域水汽输送及收支特征".自然资源学报 27.3(2012):510-521.