干旱区生态环境知识资源中心(Arid): Surface energy and water vapor fluxes observed on a megadune in the Badain Jaran Desert, China

Arid

	Surface energy and water vapor fluxes observed on a megadune in the Badain Jaran Desert, China
	Hu Wenfeng; Wang Nai'ang; Zhao Liqiang; Ning Kai; Zhang Xunhe; Sun Jie
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:5 页码:579-589
英文摘要	The Badain Jaran Desert is the second-largest area of shifting sands in China. Our first measurements of the energy components and water vapor fluxes on a megadune using eddy covariance technology were taken from April 2012 to April 2013. The results indicate that the longwave and shortwave radiative fluxes exhibited large fluctuations and seasonal dynamics. The total radiative energy loss by longwave and shortwave radiation was greater on the megadune than from other underlying surfaces. The radiation partitioning was different in different seasons. The land-atmosphere interaction was primarily represented by the sensible heat flux. The average sensible heat flux (40.1 W/m~2) was much larger than the average latent heat flux (14.5 W/m~2). Soil heat flux played an important role in the energy balance. The mean actual evaporation was 0.41 mm/d, and the cumulative actual evaporation was approximately 150 mm/a. The water vapor would transport downwardly and appear as dew condensation water. The amount of precipitation determined the actual evaporation. The actual evaporation was supposed to be equal to the precipitation on the megadune and the precipitation was difficult to recharge the groundwater. Our study can provide a foundation for further research on land-atmosphere interactions in this area.
英文关键词	eddy covariance technology energy and water vapor fluxes precipitation evaporation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5474537
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335517
作者单位	Hu Wenfeng, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.; Wang Nai'ang, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.; Zhao Liqiang, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.; Ning Kai, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.; Zhang Xunhe, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.; Sun Jie, Center for Climate Change and Hydrologic Cycle in Arid Region, College of Earth and Environmental Science, Lanzhou University, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Hu Wenfeng,Wang Nai'ang,Zhao Liqiang,et al. Surface energy and water vapor fluxes observed on a megadune in the Badain Jaran Desert, China[J],2015,7(5):579-589.
APA	Hu Wenfeng,Wang Nai'ang,Zhao Liqiang,Ning Kai,Zhang Xunhe,&Sun Jie.(2015).Surface energy and water vapor fluxes observed on a megadune in the Badain Jaran Desert, China.Journal of Arid Land,7(5),579-589.
MLA	Hu Wenfeng,et al."Surface energy and water vapor fluxes observed on a megadune in the Badain Jaran Desert, China".Journal of Arid Land 7.5(2015):579-589.