摘要
通过全球不同地区近百年来山地冰川变化的对比研究发现,山地冰川在本世纪总的退缩趋势下前进脉动的次数随纬度升高而增加。中纬度山地冰川随大陆性气候的加强,前进脉动表现不显著,甚至前进脉动次数减少。北半球山地冰川前进在统计意义上滞后于气候变化12—13 a左右。在未来气候变暖的情况下,本世纪末北半球山地冰川将以退缩为主。
By comparing the fluctuations of mountain glaciers worldwide during the last 100 years, authors discover that, under the tendency of their general retreat, readvances of mountain glaciers were more obvious and the times of that increased with latitude, but in the mid-lati-tude,readvances were less obvious an the times decreased with continental climate intensifying. There is a phase lag of about 12-13 years for glacier advance to climatic change in the Northern Hemisphere. Under climate becoming warmer in the future, the mountain glaciers in the Northern Hemisphere will mostly retreat by the end of the century.
出处
《冰川冻土》
CSCD
北大核心
1992年第3期241-250,共10页
Journal of Glaciology and Geocryology
关键词
山
冰川
波动
气候变化
fluctuations of mountain glaciers, climatic change, observed glacier, correlation analysis
