干旱区生态环境知识资源中心(Arid): 青藏高原北侧民丰站2011年7月对流层和低平流层大气观测研究

Arid

	青藏高原北侧民丰站2011年7月对流层和低平流层大气观测研究
其他题名	Observational Analysis of Troposphere and Low Stratosphere at MinfengStation on North Side of Qinghai-Xizang Plateau in July 2011
	王敏仲 1; 魏文寿 1; 何清 1; 杨莲梅 1; 程玉景 2
来源期刊	高原气象
ISSN	1000-0534
出版年	2012
卷号	31 期号:5 页码:1203-1214
中文摘要	利用2011年7月1-31日在青藏高原北侧民丰站进行加密探空观测获取的高空气象资料,分析了民丰夏季大气结构和塔里木盆地南缘上空的水汽特征。结果表明:(1)受青藏高原地形热力影响,民丰夏季对流层高度可达到16 000 m以上,其绝对高度与珠峰地区对流层绝对高度相近;0 ℃层高度约为3 450 m,略低于珠峰地区。(2)夏季副热带西风急流在青藏高原北侧表现强劲,呈东西向分布,厚度约为12 000 m,最大风速中心带位于10 700~11 400 m高度,最大风速达到45 m·s ~(-1)以上。(3)受副热带西风急流底部西风和西西南风影响,夏季青藏高原西北部上空的水汽被输送到塔里木盆地南缘,若羌、民丰及和田站上空3 000~7 500 m高度存在湿度大值层,平均相对湿度在60%~70%之间,最大湿度可达到85%以上。(4)民丰夏季白天对流边界层可达到3 200 m高度,夜间稳定边界层高度约为1 200 m,远远高于珠峰地区的观测结果,但低于敦煌地区的边界层高度。
英文摘要	In order to meet the third Tibetan Plateau Experiment of Atmospheric Sciences, the Urumqi Institute of Desert Meteorology of China Meteorological Administration carried out an atmospheric scientific experiment on the detection of troposphere and low stratosphere using a radiosonde at Minfeng station on the north side the Qinghai-Xizang Plateau in July 2011. By analyzing the intensive radiosonde data obtained at Minfeng sounding station from 1 to 31 July 2011, the results show that: (1) Because of the thermal influence of plateau terrain, the height of troposphere may reach more than 16 000 m in summer at Minfeng station, its absolute height is approximately same with the absolute height of troposphere at Everest region. (2) Summer subtropical westerly jet on the north side of the Qinghai-Xizang Plateau behaves strongly, showing the east-west direction distribution, and thickness is about 12 000 m. With the maximum wind speed center located in 10 700 to 11 400 m heights, the maximum wind speed can reach 45 m·s ~(-1). (3) Affected by the subtropical westerly jet in the bottom of the west and southwest winds, the water vapor over the northwest of the Qinghai-Xizang Plateau will be transported to the south of Tarim basin in summer. There have a high relative humidity value layer from 3 000 to 7 500 m heights at Ruoqiang, Minfeng and Hetian stations. The average relative humidity is about 60% to 70%, maximum humidity 85%, below the height of 3 000 m and a height of 8 000 m above the atmosphere with low humidity. (4) The convective boundary layer in daytime can be up to 3 200 m heights and the stable boundary layer in nighttime is about 1 200 heights, which is far higher than the observations of the Mount Everest region, but lower than the boundary layer height in Dunhuang region.
中文关键词	青藏高原北侧 ; 对流层和低平流层 ; 大气结构 ; 高湿层 ; 副热带西风急流
英文关键词	North side of the Qinghai-Xizang Plateau Troposphere and low stratosphere Atmospheric structure Higher humidity layer Subtropical westerly jet
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:4666019
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228171
作者单位	1.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国; 2.巴州气象局, 库尔勒, 新疆 841000, 中国
推荐引用方式 GB/T 7714	王敏仲,魏文寿,何清,等. 青藏高原北侧民丰站2011年7月对流层和低平流层大气观测研究[J]. 中国气象局乌鲁木齐沙漠气象研究所,2012,31(5):1203-1214.
APA	王敏仲,魏文寿,何清,杨莲梅,&程玉景.(2012).青藏高原北侧民丰站2011年7月对流层和低平流层大气观测研究.高原气象,31(5),1203-1214.
MLA	王敏仲,et al."青藏高原北侧民丰站2011年7月对流层和低平流层大气观测研究".高原气象 31.5(2012):1203-1214.