极地研究 ›› 2019, Vol. 31 ›› Issue (3): 267-275.DOI: 10.13679/j.jdyj.20180050

• 研究论文 • 上一篇    下一篇

基于GIS方法模拟山地冰川长期变化

艾松涛1,2  严博雅1,2  王泽民1,2  林国标1,2   

  1. 1.武汉大学中国南极测绘研究中心, 湖北 武汉 430079;
    2.自然资源部极地测绘科学重点实验室, 湖北 武汉 430079
  • 收稿日期:2018-09-14 修回日期:2018-10-11 出版日期:2019-09-30 发布日期:2019-09-30
  • 通讯作者: 艾松涛
  • 基金资助:

    国家自然科学基金

Projection of long-term changes of mountain glacier based on GIS grid poeration method

Ai Songtao1,2, Yan Boya1,2, Wang Zemin1,2, Lin Guobiao1,2   

  • Received:2018-09-14 Revised:2018-10-11 Online:2019-09-30 Published:2019-09-30
  • Contact: Song-Tao AI

摘要:

地理信息系统(Geographical Information System, GIS)具有强大的空间分析功能。GIS方法建立的模型, 可以模拟北极多温冰川Austre Lovénbreen的长时间序列变化。研究发现, GIS方法可以快速有效地获取冰川的冰厚、主流线长度、冰川表面积和冰川体积, 其中冰川体积的变化符合高次常函数变化规律; 通过对比GIS方法与Elmer/Ice动力学方法模拟的结果, GIS方法对冰川体积的模拟, 在十年至几十年的尺度上可行。GIS方法模拟冰川变化, 可以快速定量分析冰川未来一定年限内的厚度、面积、体积、主流线长度等几何参数, 简化了冰川变化分析研究的过程。

关键词: GIS模型, 冰川变化, 北极山地冰川, Austre Lovénbreen

Abstract:

A Geographical Information System (GIS) has powerful functions with which to analyze spatial data. This study constructed a model using GIS methods to simulate long-term changes of the polythermal Austre Lovénbreen Arctic mountain glacier. The GIS methods can be used to quickly and efficiently obtain the ice thickness, length of the mainstream line, surface area and ice volume of the glacier within the simulation. The variation of glacier volume in the time series was found consistent with the curve of the high-order function. Compared with the results of the Elmer/Ice modeling, in the first 90 years, it is feasible to study changes of a glacier on a scale of one to several decades using the GIS simulation methods. The GIS methods can be used to perform rapid quantitative analysis of geometric parameters to support research on mountain glacier change.

Key words: GIS model, glacier change, Arctic mountain glacier, Austre Lovénbreen