气候变化领域集成服务门户(CCPortal): Five-Year Analysis of Evaposublimation Characteristics and Its Role on Surface Energy Balance SEB on a Midlatitude Continental Glacier

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DOI	10.1029/2021EA001901
	Five-Year Analysis of Evaposublimation Characteristics and Its Role on Surface Energy Balance SEB on a Midlatitude Continental Glacier
	Guo, Shuhai; Chen, Rensheng; Han, Chuntan; Liu, Junfeng; Wang, Xiqiang; Liu, Guohua
通讯作者	Chen, RS (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China.
发表日期	2021
EISSN	2333-5084
卷号	8 期号:12
英文摘要	As a principal pathway of moisture loss of cryosphere, the sublimation of snow or ice needs to absorb a high amount of energy to complete the phase transition, while related researches on how sublimation affects surface energy balance (SEB) are still insufficient, causing unclear conclusions. To characterize the seasonal variation of a mountain glacier's sublimation or evaporation and analysis its role on SEB, the meteorological and glaciological data over five-year measurement period (2016-2020) were obtained on the top of August-one glacier. In the non-melt period of a year (January-May and October-December), sensible heat flux H was the dominant energy contributor to glacier surface (76%), followed by net radiation R-net (22%). Sublimation removed average 85 mm (0.4 mm/day) of water vapor from surface for the dry and windy weather, and the latent heat flux of sublimation LEE accounted for 33% of energy sinks (67% of energy was stored in the glacier Q(s)). In the melt period (June-September), evaposublimation (mainly composed of evaporation) reached to 36 mm (0.3 mm/day), but LEE only played a small heat sink (14%) and the Q(m) (the energy for melting) had the largest proportion (70%). R-net and H contributed 81% and 15% of surface energy, respectively. Obviously, under the global climate warming, the sublimation of non-melt period seems to be effective in decrease the heating rate of glacier surface.
关键词	WESTERN QILIAN MOUNTAINS MASS-BALANCE METEOROLOGICAL DATA LONGWAVE RADIATION MARITIME GLACIER TIBETAN PLATEAU SEMIARID ANDES ABLATION ZONE SUBLIMATION ROUGHNESS
语种	英语
WOS研究方向	Astronomy & Astrophysics ; Geology
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS记录号	WOS:000734382000023
来源期刊	EARTH AND SPACE SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253687
作者单位	[Guo, Shuhai; Chen, Rensheng; Han, Chuntan; Liu, Junfeng; Wang, Xiqiang; Liu, Guohua] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China; [Liu, Guohua] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Guo, Shuhai,Chen, Rensheng,Han, Chuntan,et al. Five-Year Analysis of Evaposublimation Characteristics and Its Role on Surface Energy Balance SEB on a Midlatitude Continental Glacier[J]. 中国科学院西北生态环境资源研究院,2021,8(12).
APA	Guo, Shuhai,Chen, Rensheng,Han, Chuntan,Liu, Junfeng,Wang, Xiqiang,&Liu, Guohua.(2021).Five-Year Analysis of Evaposublimation Characteristics and Its Role on Surface Energy Balance SEB on a Midlatitude Continental Glacier.EARTH AND SPACE SCIENCE,8(12).
MLA	Guo, Shuhai,et al."Five-Year Analysis of Evaposublimation Characteristics and Its Role on Surface Energy Balance SEB on a Midlatitude Continental Glacier".EARTH AND SPACE SCIENCE 8.12(2021).