Changes in physical features of Glacier No. 1 of the Tianshan Mountains in response to climate change  

作　　者：LI XiangYing DING YongJian YE BaiSheng HAN TianDing 

机构地区：[1]Institute of Climate System, Chinese Academy of Meteorological Sciences, Beijing 100081, China [2]State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

出　　处：《Chinese Science Bulletin》2011年第26期2820-2827,共8页

基　　金：supported by the National Natural Science Foundation of China (40871036);the Open Foundation of the State Key Laboratory of Cryospheric Science,Chinese Academy of Sciences (SKLCS09-04);the China Postdoctoral Science Foundation (20110490062) ;the National Natural Science Foundation of China (41001006)

摘　　要：This study analyzes the changes in glacier zones and snow composition of Glacier No.1 in the Tianshan Mountains of China since 1961,and their possible relations with climate.It is found that precipitation dominated the snow composition and that air temperature and precipitation controlled the distribution of glacier zones,but interannual change in precipitation had a relatively large effect on glacier zones and snow composition during 1963–1981 (P10) and 1963–1989 (P11).However,during 1982–2007 (P20) and 1990–2007 (P21),the air temperature rise (0.57°C/10 a for P20,0.76°C/10 a for P21) was more influential than the precipitation increase (51.3 mm/10 a for P20),and air temperature was principally responsible for the evolution of glacier zones and snow composition most probably resulting from recent climate warming.This study analyzes the changes in glacier zones and snow composition of Glacier No. 1 in the Tianshan Mountains of China since 1961, and their possible relations with climate. It is found that precipitation dominated the snow composition and that air temperature and precipitation controlled the distribution of glacier zones, but interannual change in precipitation had a relatively large effect on glacier zones and snow composition during 1963-1981 （P10） and 1963-1989 （P1 1）. However, during 1982-2007 （P2 0） and 1990-2007 （P21）, the air temperature rise （0.57℃/10 a for P2 0, 0.76℃/10 a for P21） was more influential than the precipitation increase （51.3 mm/10 a for P20）, and air temperature was principally responsible for the evolution of glacier zones and snow composition most probably resulting from recent climate warming.

关 键 词：冰川区 气候变化 物理特性 天山 空气温度 降水分布 气候关系 年际变化 

分 类 号：P343.6[天文地球—水文科学] P467[天文地球—地球物理学]