气候变化领域集成服务门户(CCPortal): Aerosol and fresh snow chemistry in the East Rongbuk Glacier on the northern slope of Mt. Qomolangma (Everest)

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DOI	10.1029/2007JD008618
	Aerosol and fresh snow chemistry in the East Rongbuk Glacier on the northern slope of Mt. Qomolangma (Everest)
	Ming, Jing; Zhang, Dongqi; Kang, Shichang; Tian, Wanshun
发表日期	2007
ISSN	2169-897X
EISSN	2169-8996
卷号	112 期号:D15
英文摘要	[1] An intensive and simultaneous sampling for aerosol and fresh snow was conducted at Repula Col of the East Rongbuk Glacier near Mt. Qomolangma during the late Indian summer monsoon season in 2003. Aerosol and snow chemistry ( including the species of Na+, K+, Mg2+, Ca2+, Cl-, SO42-, and NO3-) is analyzed and discussed. Anions account for a majority of the air quality, and SO42- is the most loaded species. Local emission by land weathering does not contribute significantly to the loading of Mg2+ and Ca2+, and their high concentration is related to their continental desert sources. The meridional dynamic force of Indian monsoon is efficient to the loading of Na+, and Na+/Ca2+ could be used to distinguish air masses of maritime or continental which dominate the air quality. The signal of crustal SO42- from Central/West Asia or farther Africa is weak, and mixed sources (anthropogenic and crustal) of SO42- dominate its loading in aerosol samples. Air-snow scavenging ratios of these species are calculated and compared with the other results in some previous studies. The scavenging ratio of SO42- as the most heavily loaded species is around 200, which is comparable with that in Greenland.
关键词	INDIAN-OCEAN EXPERIMENT M ICE CORE CHEMICAL-COMPOSITION MOUNT EVEREST RECORDS GREENLAND DEPOSITION CONSTITUENTS AMMONIUM SULFATE
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000248873400006
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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/111482
推荐引用方式 GB/T 7714	Ming, Jing,Zhang, Dongqi,Kang, Shichang,et al. Aerosol and fresh snow chemistry in the East Rongbuk Glacier on the northern slope of Mt. Qomolangma (Everest)[J]. 中国科学院青藏高原研究所,2007,112(D15).
APA	Ming, Jing,Zhang, Dongqi,Kang, Shichang,&Tian, Wanshun.(2007).Aerosol and fresh snow chemistry in the East Rongbuk Glacier on the northern slope of Mt. Qomolangma (Everest).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,112(D15).
MLA	Ming, Jing,et al."Aerosol and fresh snow chemistry in the East Rongbuk Glacier on the northern slope of Mt. Qomolangma (Everest)".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 112.D15(2007).