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Net Accumulation Rate of the East Rongbuk Glacierand Indian Summer Monsoon Rainfall

ZHANG Dong-qi~{1, 2}, QIN Da-he~{1, 2}, HOU Shu-gui~2,KANG Shi-chang~{2, 3}, REN Jia-wen~2 ratory of Ice Core andCold Regions Environment, CAREERI, CAS, Lanzhou Gansu 730000, China; 3. Institute for Quaternaryand Climate Studies, University of Maine, Orono Maine, USA)  
The precipitation in the accumulation zone of the East Rongbuk Glacier on the east slope of the Mount Qomolangma is mostly brought on by Indian summer monsoon. It is found that there is a coincidence in period between the net accumulation rate derived from the East Rongbuk ice core and the summer monsoon rainfall of North Central India and East Peninsular India, together with a fine correlation between them. Thus, the series of Indian summer monsoon rainfall of the regions mentioned above could be extrapolated from the net accumulation rate of the East Rongbuk Glacier. Variation of the net accumulation rate of the East Rongbuk Glacier is appreciably earlier than that of the Indian summer monsoon rainfall, and the changing magnitude of the former is larger than that of the later, which means sensitivity of precipitation increase with elevation.
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