ATTRIBUTION ANALYSIS OF CLIMATE CHANGE AND HUMAN ACTIVITIES TO WATER VOLUME VARIATION IN LARGE LAKES

被引：0

作者：

Lin, Yi ^{[1
,2
]}

Gao, Chen ^{[1
,2
]}

Li, Xin ^{[3
]}

Zhang, Tinghui ^{[1
,2
]}

Yu, Jie ^{[1
,2
]}

Rong, Yu ^{[1
,2
]}

Li, Lang ^{[1
,2
]}

Zhou, Xuefei ^{[4
]}

Cai, Jianqing ^{[5
]}

Sneeuw, Nico ^{[5
]}

机构：

[1] Tongji Univ, Coll Surveying & Geoinformat, Shanghai 200092, Peoples R China

[2] Tongji Univ, Res Ctr Remote Sensing Technol & Applicat, Shanghai 200092, Peoples R China

[3] Guangxi Zhuang Autonomous Reg Land Surveying & Ma, Nanning 530023, Guangxi Zhuang, Peoples R China

[4] Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China

[5] Univ Stuttgart, Inst Geodesy, D-70174 Stuttgart, Germany

来源：

GEOSPATIAL WEEK 2023, VOL. 48-1 | 2023年

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Lake water volume; Attribution analysis; Climate change; Human activities; Lake Victoria; LAND-USE CHANGES; IMPACTS; VICTORIA; PRECIPITATION; URBANIZATION; AFRICA; BASIN;

D O I：

10.5194/isprs-archives-XLVIII-1-W2-2023-443-2023

中图分类号：

K85 [文物考古];

学科分类号：

0601 ;

摘要：

Lakes are important components of the Earth's surface water bodies, and their fluctuating water levels and changing water volumes can have an important impact on ecological processes and landscape patterns within a watershed. Climate change and human activities are the main drivers of water volume changes in lakes. We applied a long time series analysis approach using classical statistics and geographic information system (GIS) technics to quantitatively attribute water volume variations in Lake Victoria from 2000 to 2019. We examined several drivers of lake water volume variations: meteorological factors including regional climate change (precipitation, evaporation) and global climate change (El Nino/Southern Oscillation events), and anthropogenic factors including socio-economic development and land use/cover change. The results show that regional climate change has a greater impact on lake water volume variations than global climate change; among them, the correlation coefficient between precipitation and lake water volume variations is the largest (0.410), with an impact lag of 1 month. For anthropogenic factors, variations in lake water volume are more pronounced in areas with rapid economic development and high population growth, with correlation coefficients greater than 0.440. Different types of land use/cover have varying impacts on Lake Victoria's water volume variations. Overall, the influence of anthropogenic factors is greater than that of meteorological factors. This study results not only provides a scientific basis for exploring the hydrological changes and their drivers in the world's large transboundary lakes, but also be great scientific significance to rational use of water resources and sustainable regional development.

引用

页码：443 / 450

页数：8

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