气候变化领域集成服务门户(CCPortal): Analysis of Land-Atmosphere Interactions over the North Region of Mt. Qomolangma (Mt. Everest)

CCPortal

DOI	10.1657/1938-4246-44.4.412
	Analysis of Land-Atmosphere Interactions over the North Region of Mt. Qomolangma (Mt. Everest)
	Chen, Xuelong; Su, Zhongbo; Ma, Yaoming; Sun, Fangin
通讯作者	Chen, XL (通讯作者)
发表日期	2012
ISSN	1523-0430
EISSN	1938-4246
起始页码	412
结束页码	422
卷号	44 期号:4
英文摘要	To better understand the basic characteristics of the land surface energy budget, nearly 7 years of continuous measurements at the Qomolangma Station for Atmospheric and Environmental Observation and Research, Chinese Academy of Sciences (QOMS/CAS) (28.21 degrees N, 86.56 degrees E, 4276 m a.s.l.) have been analyzed systematically. Seasonal and annual variations of micrometeorological measurements and land surface energy balance were analyzed. The general nature of the diurnal variation of the surface winds on the north of Mt. Everest is represented by a maximum in the afternoon and a constant wind speed in the early morning, which is controlled not only by the significant glacier wind but also by the local mountain-valley circulation and upper-level wind. Surface albedo decreases with increasing soil moisture content, showing the typical exponential relation between surface albedo and soil moisture. The data set disclosed that the high soil moisture in summer is coordinated with low albedo. The ratio between sensible heat and net radiation (H/Rn) can be as high as 0.49 when the soil is dry. The ratio (H/Rn) decreases to 0.14 with the increasing of soil moisture. On the contrary, the ratio between latent heat flux and net radiation (LE/Rn) is increased when soil moisture is rising. The highest ratio (LE/Rn) can be as high as 0.5 when soil moisture changes between 15% and 20%. After defining the effects of different soil moisture level on partitioning of surface available energy into sensible and latent heat fluxes, we can qualify how much the sensible heating is decreasing and the latent heating is increasing in this region under current plateau environment changes of warming and moistening.
关键词	SURFACE-ENERGY BUDGET SOIL THERMAL PARAMETERS CENTRAL TIBETAN PLATEAU DIURNAL-VARIATIONS ASIAN MONSOON MOISTURE PRECIPITATION RAINFALL CLIMATE SUMMER
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Environmental Sciences ; Geography, Physical
WOS记录号	WOS:000311010700003
来源期刊	ARCTIC ANTARCTIC AND ALPINE RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257988
推荐引用方式 GB/T 7714	Chen, Xuelong,Su, Zhongbo,Ma, Yaoming,et al. Analysis of Land-Atmosphere Interactions over the North Region of Mt. Qomolangma (Mt. Everest)[J]. 中国科学院青藏高原研究所,2012,44(4).
APA	Chen, Xuelong,Su, Zhongbo,Ma, Yaoming,&Sun, Fangin.(2012).Analysis of Land-Atmosphere Interactions over the North Region of Mt. Qomolangma (Mt. Everest).ARCTIC ANTARCTIC AND ALPINE RESEARCH,44(4).
MLA	Chen, Xuelong,et al."Analysis of Land-Atmosphere Interactions over the North Region of Mt. Qomolangma (Mt. Everest)".ARCTIC ANTARCTIC AND ALPINE RESEARCH 44.4(2012).