The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970–2000
The response of lake-glacier variations to climate change in Nam Co Catchment, central Tibetan Plateau, during 1970–2000
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1970—2000年青藏高原中部纳木错流域湖泊冰川变化对气候变化的响应
DOI：
10.1007/s11442-008-0177-3
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发表时间：
2008-06
影响因子：
4.9
通讯作者：
中科院分区：
文献类型：
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作者：
根据1970年航测地形图和1991年、2000年TM/ETM卫星影像，人工解译纳木错流域湖泊冰川边界，并在GIS支持下，采用“综合法”定量分析了不同时期湖泊冰川面积的变化。结果表明：1970 ~ 2000年，湖泊面积从1942.34 km 2增加到1979.79 km 2，增加速率为1.27 km 2/a;冰川面积从167.62 km 2减少到141.88 km 2，减少速率为0.86 km 2/a。1991-2000年湖泊的增长速度为1.76 km ~ 2/a，明显快于1970-1991年的1.03 km ~ 2/a，而同期冰川的萎缩速度分别为0.97 km ~ 2/a和0.80 km ~ 2/a。讨论了湖泊和冰川对气候响应的重要因子，如气温、降水、潜在蒸散量及其在暖季和冷季的数值。结果表明，气温升高是冰川加速融化的主要原因。湖泊扩张主要是由于冰川融水的增加、降水的增加和潜在蒸散量的明显减少。在全球变暖和冰川退缩的背景下，需要深入研究区域尺度上的降水、蒸发及其与湖泊扩大的联系。
Based upon the 1970 aero-photo topographic map, and TM/ETM satellite images taken in 1991 and 2000, the authors artificially interpreted boundaries of lake and glaciers in Nam Co Catchment, and quantified lake-glacier area variations in different stages by “integrated method” with the support of GIS. Results show that from 1970 to 2000, lake area increased from 1942.34 km2to 1979.79 km2at a rate of 1.27 km2/a, while glacier area decreased from 167.62 km2to 141.88 km2at a rate of 0.86 km2/a. The increasing rate of lake in 1991–2000 was 1.76 km2/a that was faster than 1.03 km2/a in 1970–1991, while in the same period of time, the shrinking rates of glaciers were 0.97 km2/a and 0.80 km2/a respectively. Important factors, relevant to lake and glacier response to the climate, such as air temperature, precipitation, potential evapotranspiration and their values in warm and cold seasons, were discussed. The result suggests that temperature increasing is the main reason for the accelerated melting of glaciers. Lake expansion is mainly induced by the increase of the glacier melting water, increase of precipitation and obvious decrease of potential evapotranspiration. Precipitation, evaporation and their linkages with lake enlargement on regional scale need to be thoroughly studied under the background of global warming and glacier retreating.
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影响因子：
3.4
作者：
A. Kulkarni;I. M. Bahuguna
通讯作者：
A. Kulkarni;I. M. Bahuguna
DOI：
--
发表时间：
2000-03
期刊：
Plateau Meteorology
影响因子：
--
作者：
Gao Xiaoqing;Tang Mao-cang;Feng Song
通讯作者：
Gao Xiaoqing;Tang Mao-cang;Feng Song
DOI：
10.1191/0959683606hl957rr
发表时间：
2006-05
期刊：
The Holocene
影响因子：
--
作者：
S. Harrison;N. Glasser;V. Winchester;Eleanor Haresign;C. Warren;K. Jansson
通讯作者：
S. Harrison;N. Glasser;V. Winchester;Eleanor Haresign;C. Warren;K. Jansson
DOI：
--
发表时间：
2005
期刊：
Journal of Glaciology and Geocryology
影响因子：
--
作者：
A. Lu
通讯作者：
A. Lu
影响因子：
2.7
作者：
P. Singh;L. Bengtsson;R. Berndtsson
通讯作者：
P. Singh;L. Bengtsson;R. Berndtsson