IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2010  > Vol7 No.1
Seasonal and Spatial Variability of Microparticles in Snowpits on the Tibetan Plateau, China
Zhang Yulan; Kang Shichang; Zhang Qianggong; Cong Zhiyuan; Zhang Yongjun; Gao Tanguang
Corresponding AuthorKang, SC
2010-03
ISSN1672-6316
Volume7Issue:1Pages:15–25
AbstractThe work presents microparticle concentrations in snowpits from the East Rongbuk Glacier on Mt. Qomolangma (Everest) (ER) (28.02 degrees N, 86.96 degrees E, 6536 m a.s.l.), the Zhadang Glacier on Mt. Nyainqentanglha (NQ) (30.47 degrees N, 90.65 degrees E, 5800m a.s.l.), and the Guoqu Glacier on Mt. Geladaindong (GL) (33.95 degrees N, 91.28 degrees E, 5823m a.s.l.) over the Tibetan Plateau (TP). Variations of microparticle and major ions (e.g. Mg(2+), Ca(2+)) concentrations in snowpits show that the values of the microparticles and ions in the non-monsoon seasons are much higher than those in the monsoon seasons. Annual flux of microparticle deposition at ER is lower than those at NQ and GL, which could be attributed to the long distance away from the possible dust source regions as well as the elevation for ER higher than the others. Compared with other remote areas, microparticle concentrations in the southern TP are much lower than those in the northern TP, but still much higher than those in Greenland and Antarctica. The seasonal and spatial microparticle variations are clearly related to the variations of atmospheric circulation according to the air mass 5-day backward trajectory analyses of HYSPLIT Model. Resultingly, the high microparticle values in snow are mainly attributed to the westerlies and the strong dust storm outbreaks on the TP, while the monsoon circulation brings great amount of precipitation from the Indian Ocean, thus reducing in the aerosol concentrations.
KeywordMicroparticle Seasonal Change Spatial Variation Snowpits Tibetan Plateau
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5882
CollectionJournal of Mountain Science_Journal of Mountain Science-2010_Vol7 No.1
Recommended Citation
GB/T 7714
Zhang Yulan,Kang Shichang,Zhang Qianggong,et al. Seasonal and Spatial Variability of Microparticles in Snowpits on the Tibetan Plateau, China[J],2010,7(1):15–25.
APA Zhang Yulan,Kang Shichang,Zhang Qianggong,Cong Zhiyuan,Zhang Yongjun,&Gao Tanguang.(2010).Seasonal and Spatial Variability of Microparticles in Snowpits on the Tibetan Plateau, China.,7(1),15–25.
MLA Zhang Yulan,et al."Seasonal and Spatial Variability of Microparticles in Snowpits on the Tibetan Plateau, China".7.1(2010):15–25.
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