期刊
GEOPHYSICAL RESEARCH LETTERS
卷 44, 期 2, 页码 892-900出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL072062
关键词
lake seasonality; cryosphere hydrolgoy; Tibetan Plateau
资金
- Chinese Academy of Sciences [XDB03030207]
- NSFC [41571071, 41190081, 41101062]
- Youth Innovation Promotion Association CAS
The recent growth and deepening of inland lakes in the Tibetan Plateau (TP) may be a salient indicator of the consequences of climate change. The seasonal dynamics of these lakes is poorly understood despite this being potentially crucial for disentangling contributions from glacier melt and precipitation, which are all sensitive to climate, to lake water budget. Using in situ observations, satellite altimetry and gravimetry data, we identified two patterns of lake level seasonality. In the central, northern, and northeastern TP, lake levels are characterized by considerable increases during warm seasons and decreases during cold seasons, which is consistent with regional mass changes related to monsoon precipitation and evaporation. In the northwestern TP, however, lake levels exhibit dramatic increases during both warm and cold seasons, which deviate from regional mass changes. This appears to be more connected with high spring snowfall and large summer glacier melt. The variable lake level response to different drivers indicates heterogeneous sensitivity to climate change between the northwestern TP and other regions.
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