干旱区生态环境知识资源中心(Arid): 中国北方水汽与云和降水的关系

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	中国北方水汽与云和降水的关系
其他题名	Relationship between water vapor with cloud and precipitation in the north China
	封彩云 1; 王式功 1; 尚可政 1; 杨德保 1; 文小航 2
ISSN	0455-2059
出版年	2009
卷号	45 期号:4 页码:30-36
中文摘要	利用中国35°N以北地区1961年1月1日-2001年12月31日58个探空站逐日高空观测资料以及地面观测的逐日总云量、低云量、降水量资料,分析了42a来中国北方各区水汽质量分数的变化特征,水汽质量分数与总云量、低云量以及降水量的年际变化特征,逐区讨论了水汽质量分数与总云量、低云量和降水量的相关关系.结果表明:中国北方地区42a水汽质量分数有微弱的增加;水汽质量分数与云量、降水量呈明显的正相关.水汽质量分数与云量、降水量的相关中,平均水汽质量分数与低云量、降水量的正相关最显著;云量与降水量的相关中,低云量与降水量的相关最显著.这三种相关的季节变化特征均为春季最显著,秋、夏季次之,冬季最弱.沙区的各相关系数均低于非沙区的,说明荒漠化对空中水资源也有一定的影响,尤其是在沙尘暴多发的春季,这一影响就更显著了.
英文摘要	Based on the data of radiosonde report and surface meteorological observation of 58 stations of Jan. 1, 1961-Dec. 31, 2001 of the north China (north of 35°N) for 42 years, the tendency of the water vapor content, cloud cover and precipitation and the relation between them were studied. The result shows that the water vapor content of this area seems to be somewhat increasing during the 42 years; the character of correlation among the water vapor, cloud cover and precipitation shows that, in each region, the correlation coefficients between average water vapor content with low cloud cover and precipitation are the biggest among the correlation coefficients between water vapor content with cloud cover and precipitation; the correlation coefficients between low cloud cover and precipitation are the biggest among the correlation coefficients between cloud cover and precipitation. The seasonal feature of all the three coefficients is that the largest is in the spring, the smallest is in the winter, and the autumn is bigger than summer; the correlation coefficients of desert areas are much lower than the non-desert areas. It reflects that desertification has also relatively obvious influence on the air water resources, and the effect tend to be conspicuous especially in spring whenthe dust storms often occur.
中文关键词	水汽质量分数 ; 云量 ; 降水量 ; 相关 ; 荒漠化
英文关键词	water vapor content cloud cover precipitation correlation desertification
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:3726245
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223894
作者单位	1.兰州大学,大气科学学院, 甘肃省干旱气候变化与减灾重点实验事, 兰州, 甘肃 730000, 中国; 2.中国科学院寒Ⅸ旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	封彩云,王式功,尚可政,等. 中国北方水汽与云和降水的关系[J]. 兰州大学,2009,45(4):30-36.
APA	封彩云,王式功,尚可政,杨德保,&文小航.(2009).中国北方水汽与云和降水的关系.,45(4),30-36.
MLA	封彩云,et al."中国北方水汽与云和降水的关系".45.4(2009):30-36.