1959-2016年中国阿尔泰山冰川长度数据集  

A dataset of glacier length in Chinese Altay Mountains from 1959 to 2016

作　　者：靳惠安 姚晓军[1] 张大弘 Jin Huian;Yao Xiaojun;Zhang Dahong(College of Geography and Environmental Science,Northwest Normal University,Lanzhou 730070,P.R.China;College of Forestry Engineering,Gansu Forestry Polytechnic,TianShui 741020,P.R.China)

机构地区：[1]西北师范大学地理与环境科学学院,兰州730070 [2]甘肃林业职业技术学院林业工程学院,甘肃天水741020

出　　处：《中国科学数据（中英文网络版）》2019年第4期164-171,共8页China Scientific Data

基　　金：国家自然科学基金(41561016,41861013,41801052);西北师范大学青年教师科研能力提升计划项目(NWNU-LKQN-14-4)

摘　　要：阿尔泰山位于亚洲中部和新疆最北端,是我国冰川发育纬度最高的地区。阿尔泰山地区冰川属亚大陆型,受全球气候变暖影响,该区域冰川退缩剧烈。本数据集基于中国阿尔泰山地区两次冰川编目数据、2016年Landsat OLI遥感影像及数字高程模型(DEM)等相关数据,提取不同时期该地区冰川中流线,继而获得逐条冰川长度信息。数据集包含两个文件:1)基于Landsat OLI遥感影像及数字高程模型提取的2016年中国阿尔泰山冰川编目矢量数据;2)基于中流线方法提取的1959年、2006年、2016年中国阿尔泰山冰川中流线矢量数据。本数据集反映了1959–2016年中国阿尔泰山地区冰川长度变化信息,可作为区域冰川变化、气候变化等研究的基础数据。The Altay Mountains is situated in the northernmost part of Xinjiang Uygur Autonomous Region and has numerous glaciers in the highest latitude in China.Glaciers in this region had been experiencing dramatic recessions due to global warming.Based on the First Chinese Glacier Inventory(FCGI),the Second Chinese Glacier Inventory(SCGI),Landsat OLI images and SRTM DEM(V4.1),the centerlines of glaciers in different periods were extracted using GIS technology,then their main geometrical parameters(e.g.,the maximum of lengths or the mean of lengths)were obtained.This dataset includes two parts:1)glacier boundary vector files in 2016 in Chinese Altay Mountains;2)glacier centerlines vector files in 1959,2006 and 2016 in Chinese Altay Mountains.This dataset can reflect the changes of glaciers in Chinese Altay Mountains from 1959 to 2016 and has important values for some studies such as regional glacier changes,climate changes,etc.

关 键 词：冰川长度 冰川中流线 冰川编目 阿尔泰山 

分 类 号：P343.6[天文地球—水文科学]