Arid
DOI10.3390/atmos12030349
Spatial-Temporal Distribution of Tropospheric Specific Humidity in the Arid Region of Northwest China
Zhang, Hao; Sun, Meiping; Yao, Xiaojun; Wang, Zhilan; Zhang, Lei
通讯作者Sun, MP (corresponding author), Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China. ; Sun, MP (corresponding author), Univ Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China.
来源期刊ATMOSPHERE
EISSN2073-4433
出版年2021
卷号12期号:3
英文摘要Based on the atmospheric temperature and dew point temperature difference series of mandatory levels in the arid region of northwest China, we calculated the specific humidity of stations at 200, 300, 400, 500, 700, and 850 hPa and analyzed the spatial and temporal distribution. The specific humidity of radiosonde is compared with two sets of reanalysis data (ERA-interim from European Centre for Medium Range Weather Forecasts and Modern Era Retrospective Analysis for Research and Applications: MERRA-2). The annual specific humidity and summer specific humidity show a positive trend in the vertical atmospheric levels during the period 1958-2018. Taking the middle of the 1980s and 2002 as boundaries, the selected levels show the trend of declining-gentle rising-fluctuation rising. The maximum specific humidity is observed at the level of 850-700 hPa during the warm months of the year, and the most vertical expansion in specific humidity is in July. In terms of spatial distribution, the specific humidity is greatly influenced by the topography and underlying surface at lower levels. The characteristics of spatial distribution of the trend are well described by the two sets of reanalysis data in the middle and upper levels, but there are some deficiencies in depicting the trend in the lower levels.
英文关键词Northwest China troposphere specific humidity spatial and temporal distribution
类型Article
语种英语
开放获取类型gold
收录类别SCI-E
WOS记录号WOS:000633346800001
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/349607
作者单位[Zhang, Hao; Sun, Meiping; Yao, Xiaojun; Wang, Zhilan; Zhang, Lei] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Sun, Meiping] Univ Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Hao,Sun, Meiping,Yao, Xiaojun,et al. Spatial-Temporal Distribution of Tropospheric Specific Humidity in the Arid Region of Northwest China[J],2021,12(3).
APA Zhang, Hao,Sun, Meiping,Yao, Xiaojun,Wang, Zhilan,&Zhang, Lei.(2021).Spatial-Temporal Distribution of Tropospheric Specific Humidity in the Arid Region of Northwest China.ATMOSPHERE,12(3).
MLA Zhang, Hao,et al."Spatial-Temporal Distribution of Tropospheric Specific Humidity in the Arid Region of Northwest China".ATMOSPHERE 12.3(2021).
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