Tropical Glaciers and Climate

该项目涉及低纬度地区的冰川和气候变化，重点是气候强迫反应过程。鉴于气候的全球性，人们对整个热带地区感兴趣，并将重点放在东非。项目的组成部分包括：从卫星上探测冰川面积的变化，对具有适当“地面真相”的选定山脉进行探测；通过天文摄影测量重新绘制肯尼亚山冰川图，探测冰量变化；对从上个世纪后半叶到1990年的S，驱动肯尼亚山刘易斯冰川变化的各种气候强迫进行量化分析；较低优先级的是新几内亚、东非和南美安第斯山脉冰川的气候强迫和消退历史。总体而言，该项目将遵循为气候目的开发“热带卫星冰川学”方面的有希望的线索，并结合对现有实地观测的分析，同时只需要有限的实地工作。应特别注意对可能与“温室”问题有关的近期冰川变化的气候强迫进行定量评估。

This project is concerned with glacier and climate variations in the low latitudes, focusing on climatic forcing-response processes. Given the global nature of climate, interest is in the tropics as a whole, with a regional emphasis on East Africa. The project components include glacier area-change detection from satellite for selected mountains with suitable "ground truth"; ice volume-change detection from an areo-photogrammetric re-mapping of Mount Kenya's glaciers; a quantitative analysis of the various kinds of climatic forcing that have driven the changes of Lewis Glacier, Mount Kenya, from the latter part of the last century to the 1990's; and with lower priority, a comparative climatic forcing and retreat history of glaciers in New Guinea, East Africa, and the South American Andes. Overall, the project shall follow promising leads in the development of "tropical satellite glaciology" for climate purposes, in combination with the analysis of existing field observations, while requiring only limited field work. Particular attention shall be given to the quantitative evaluation of the climatic forcing of recent glacier changes that may be relevant to the "greenhouse" issue.