Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-19 Cooperative journals: 《中国科学院院刊》
Abstract： China has 48 571 glaciers with a total area of 5.18×104 km2, which accounts for 11%–14.5% of the total area of mountain glaciers in the world. These glaciers constitute a vital source of water for more than 100 million people and for wildlife ecosystems in this vast arid and semi-arid land in northwestern China. Urumqi Glacier No. 1, the best monitored glacier in China, is located at the headwaters of the Urumqi River in eastern Tianshan and is within the core area of central Asia. To implement the long term monitoring of Urumqi Glacier No. 1, the Tianshan Glaciological Station (TGS) was established by Chinese Academy of Sciences (CAS) in 1959. Since then, Urumqi Glacier No. 1 has been the subject of extensive studies. Internationally, it has been one of the ten referential glaciers in the World Glacier Monitoring Service (WGMS), and considered to be of great importance because of its special geographical position. The Urumqi Glacier No. 1 complements similar long-term monitoring programs covering more maritime-type glaciers and glaciers in transitional climates in polar, temperate, and tropical regions. Over the past 60 years, the TGS has served as a research and training base for domestic and overseas scientists and graduate students. It plays a central role in central Asian climatological, hydrological and glaciological research. As such, it is well known and highly regarded by the international scientific community. As a permanent year-round glacier station among glaciers in central Asia, it is the benchmark to which other relevant studies can make reference.
Subjects: Geosciences >> Geography submitted time 2019-01-11 Cooperative journals: 《干旱区地理》
Abstract：为认识全球变暖背景下中国西部大陆性冰川与海洋性冰川物质平衡变化及其对气候响应，本研究以天山乌鲁木齐河源1号冰川和藏东南帕隆94号冰川为例，结合大西沟与察隅站气象资料，对1980 — 2015年两条冰川的物质平衡变化特征及差异进行了分析。结果表明：36 a来乌源1号冰川与帕隆94号冰川物质平衡总体上均呈下降趋势，累积物质平衡达-17102与-8159 mm w.e.，相当于冰川厚度减薄19与9.01 m，且分别于1996、2004年左右发生突变。同期两条冰川所处区域年均温呈显著上升趋势，而降水量却表现出不同的变化态势；二者年内气温分配相仿，但降水分配差异较大。初步分析认为气温上升是导致乌源1号冰川与帕隆94号冰川物质亏损的主要原因，冰川区气温和降水变化幅度的差异和地性因子（坡度、冰川面积）的不同使得乌源1号冰川对气候变化响应的敏感性高于帕隆94号冰川，由于目前海洋性冰川物质平衡监测时段相对较短，为深入研究中国西部冰川物质平衡变化及过程仍需加强对冰川的持续观测。
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