山地冰川演化与冰湖发育相互作用机制  

The interaction mechanisms between mountain glacier evolution and glacial lake development

作　　者：王琼[1] 王欣[1,2] 雷东钰 殷永胜 魏俊锋 张勇[1] WANG Qiong;WANG Xin;LEI Dongyu;YIN Yongsheng;WEI Junfeng;ZHANG Yong(School of Earth Sciences and Spatial Information Engineering,Hunan University of Science and Technology,Xiangtan 411201,Hunan,China;State Key Laboratory of Cryospheric Science,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]湖南科技大学地球科学与空间信息工程学院,湖南湘潭411201 [2]中国科学院西北生态环境资源研究院冰冻圈科学国家重点实验室,甘肃兰州730000

出　　处：《冰川冻土》2022年第3期1041-1052,共12页Journal of Glaciology and Geocryology

基　　金：国家自然科学基金项目(42171137,42171134);湖南省研究生科研创新项目(CX20210990)资助。

摘　　要：冰川-冰湖耦合过程是冰冻圈物质与能量循环的重要组成部分,系统刻画冰川演化与冰湖发育过程的相互作用机制,对于完善冰冻圈科学理论体系和认知冰川作用区变化规律、水循环模式和灾害效应具有重要意义。本文立足山地冰川演化和冰湖发育过程,系统归纳了冰川-冰湖相互作用研究进展,剖析了冰川作用与冰湖发育耦合机制及相关模型的应用,并对现有冰川演化与冰湖发育过程耦合机制研究存在的不足与挑战进行解析和总结。冰川-冰湖耦合过程的深入研究有助于提高数值模拟的可信度与精度,为评估冰川-冰湖耦合过程影响、建立灾害监测预警体系和采取适应性措施提供数据与理论基础。The coupling process of the glacier and glacial lake is a significant component of the cryosphere material and energy cycle,and it’s crucial for improving the theoretical system of cryosphere science and recognizing the changing pattern of glacierized region,water cycle model,and disaster effect to depict the interaction mechanism between glacier evolution and glacial lake development,systematically. Establishing the mountain glacier evolution and glacial lake development process,this paper systematically summarizes the research advance of the coupling process of the glacier and glacial lake,profiles the coupling mechanism of glaciation and glacial lake development and the application of relevant models,and analyzes and summarizes the shortcomings and challenges of the present research on the coupling mechanism of glacier evolution and glacial lake development.The results suggest that the environmental topographic factors around the glacial lake parent glacier dominate the glaciation process and glacial lake development,and constrain the characteristics of the lake basin. Glacier slope(surface slope,bottom topography)controls glacier dynamics and influences glacial lake differentiation;the surrounding rocks participate in the glaciation process and directly constitute the glacial lake basin;glacier erosion,transport,deposition,and ablation processes shape the landform and material transportation to provide multiple topographic conditions for glacial lake development. The glacial lake basin receives water from all components of the environment,which makes the depressions eventually develop into lakes. The runoff generation and concentration mechanism is closely related to the glacier runoff yield and concentration,where glacier ablation and external water sources enter the glacier hydrological system,and the glacial lake basin converges and collects water from the glacial sink path to form glacial lakes;the bottom of the glacial lake basin and the dam structure formed by different glaciation control the glacial

关 键 词：冰川 冰湖 湖盆 水文机制 冰川动态 

分 类 号：P343.63[天文地球—水文科学]