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冰川动力学模式及其对中国冰川变化预测的适应性
  • ISSN号:1000-0240
  • 期刊名称:冰川冻土
  • 时间:0
  • 页码:201-208
  • 语言:中文
  • 分类:P343.6[天文地球—水文科学;天文地球—地球物理学]
  • 作者机构:[1]中国科学院寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室天山冰川站,甘肃兰州730000
  • 相关基金:中国科学院知识创新工程重要方向项目(KZCX2-YW-127);国家自然科学基金项目(40631001;40571033;40371028;J0630966)资助.
  • 相关项目:冰芯记录形成过程中的几个基本问题研究
中文摘要:

冰川动力学模式以其优越的物理过程描述能力,在冰川变化的预测研究中占有重要地位,其中“频率响应模式”、“剖面形状因子模式”和“冰流模式”较为成熟,并且具备对山岳冰川演变的模拟分析能力.从发展历史、主要利弊以及适用条件和范围几个方面,对上述3种模式进行了讨论,并对其在我国冰川上的运用前景进行了探讨。

英文摘要:

Alpine glaciers are sensitive to changes in temperature and precipitation. The shrinkage of alpine glaciers in the twentieth century is on a global scale. For a number of glaciers, the rate of shrinkage appears to have accelerated toward the end of the century. However, the current acceleration of glacier melting apparently has not been predicted by most glacier models. As glacier dynamic models perform satisfactorily for describing physical processes and long-term evolution of glaciers, they likely become a potential tool to reveal the current changes of Alpine glaciers. In this paper, developing history, application conditions, advantages and disadvantages of three dynamic models (frequency response model, factor of profile model, and ice flow model) are discussed. The particular focus is on their applicability for the glaciers in China. It indicates that these models may be effective if more data, e.g. glacier mass balance, thickness, surface velocity, and temperature etc. are observed, especially on different kind of glaciers. GIS and remote sensing data can also be employed as supplementary. In addition, as a case study, different models have been applied to Glacier No. 1 at headwater of/Jrtimqi River for its future variation predication. The result indicates that the response time of the glacier is in a magnitude of over one hundred year. The parameter optimizing, modeling processes and all outcomes are presented and discussed in this paper.

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期刊信息
  • 《冰川冻土》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院 寒区旱区环境与工程研究所
  • 主办单位:中国地理学会 中国科学院寒区旱区环境与工程研究所
  • 主编:程国栋
  • 地址:兰州市天水中路8号
  • 邮编:730000
  • 邮箱:edjgg@lzb.ac.cn
  • 电话:0931-8260767
  • 国际标准刊号:ISSN:1000-0240
  • 国内统一刊号:ISSN:62-1072/P
  • 邮发代号:54-29
  • 获奖情况:
  • 中国自然科学核心期刊,第二届全国优秀地理期刊,甘肃省优秀地理期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国地质文献预评数据库,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:17974