格陵兰冰盖质量变化及其驱动机制研究进展  

Advance of Mass Change and Driving Mechanism Research on Greenland Ice Sheet

作　　者：邹小伟 李昭 杨堤益 王泽 周宗锟 单强 孙维君 丁明虎[3] 姜卫平[1,2] ZOU Xiaowei;LI Zhao;YANG Diyi;WANG Ze;ZHOU Zongkun;SHAN Qiang;SUN Weijun;DING Minghu;JIANG Weiping(GNSS Research Center,Wuhan University,Wuhan 430079,China;Hubei Luojia Laboratory,Wuhan 430079,China;Institute of Global Change and Polar,Chinese Academy of Meteorological Sciences,Beijing 10008l,China;Haining Meteorological Bureau,Haining 314400,China;College of Geography and Environment,Shandong Normal University,Jinan 250014,China)

机构地区：[1]武汉大学卫星导航定位技术研究中心,湖北武汉430079 [2]湖北珞珈实验室,湖北武汉430079 [3]中国气象科学研究院全球变化与极地研究所,北京100081 [4]海宁市气象局,浙江海宁314400 [5]山东师范大学地理与环境学院,山东济南250014

出　　处：《武汉大学学报（信息科学版）》2023年第7期1192-1203,共12页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金(42174030,42122047);湖北珞珈实验室专项基金(220100020)。

摘　　要：作为地球气候系统演变的“预示器”,格陵兰冰盖(Greenlandice sheet,GrIS)质量变化不仅是全球气候变化研究的重点领域,也是海平面变化研究的关键科学问题。结合多种大地测量技术及气候模式等回顾了GrIS近几十年质量变化,总结了不同手段的优缺点及其质量变化机制。基于卫星重力、测高等多种手段的研究结果表明,受不同手段自身特点的影响,计算的GrIS质量变化存在明显差异,导致对海平面变化的预测存在较大不确定性。GrIS质量的快速变化与多种驱动机制相关,包括地理环境导致的辐射反馈,海洋、大气热力过程及冰盖动力过程等影响。然而,不同机制之间的相互作用仍待进一步研究。针对目前手段和机制存在的不足,指出多源数据的融合应用、极地冰盖模式的进一步优化等可能是未来GrIS质量变化及其气候变化响应研究的重要方向。Objectives:As an indicator of Earth's climate system,the mass change of Greenland ice sheet(GrIS)has been becoming a hot topic at global climate change,and it is key scientific issues that research sea level change.Methods:We discuss the GrIS mass balance in recent multiyear based on the geodesy technique and climate model with analysis of the mechanism,and summarize the weakness and strength for each method.Results:The results based on various methods such as satellite gravity and altitude measure-ment indicate that there are significant differences in the calculated GrIS mass changes due to the inherent characteristics of different methods,resulting in significant uncertainty for future sea level projection.The quickly change of GriS mass is closely related with multiple driving factors,includes radiation feedback ac-counted for geographical environment,thermodynamic process of marine and atmospheric,ice sheet dynamic process,and so on.Conclusions:However,the interaction between different mechanisms is still inconclusive.It is further pointed out that the application of multi-source data fusion,and the further optimization of polar ice sheet models will be important directions for the future study of GriS quality change and its response to climate change.

关 键 词：大地测量技术 格陵兰冰盖 物质平衡 热力过程 动力过程 

分 类 号：P228[天文地球—大地测量学与测量工程]