Evaluating the thermal environment of urban land surfaces in Yakutsk,a city located in a region of continuous permafrost

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外文摘要：Rapid urbanization has led to changes in the urban land surface thermal environment.However,there are still much unknown about the urban land surface thermal conditions in permafrost regions.Permafrost is a unique geological environment,changes in the urban land surface thermal environment may trigger geological disasters caused by permafrost degradation.This study utilized remote sensing data and geographic de-tectors to identify the dynamic changes in land surface temperature(LST)and land use/land cover(LU/LC)in Yakutsk,as well as the potential factors contributing to LST variations.Between 1992 and 2020,the built-up area in Yakutsk increased by 36％,and the annual average LST in Yakutsk has risen by 6.67 ℃,accompanied by an expansion of high-temperature areas.Despite ongoing greening efforts,rapid urbanization poses a threat to these green spaces.Changes in the normalized difference built-up index(NDBI)and land use transfer(LDT)were identified as the primary drivers of urban LST changes.By integrating geographic detector technology and artificial neural network models,we optimized the selection of input factors in the prediction model and used it to explore the future changes in LST in Yakutsk.The average LST in Yakutsk is expected to reach 23.4 ℃ and 25.1 ℃ in 2030 and 2040,respectively,with a further increase in high-temperature areas.This study provides a reference for ecological,hydrological,and geological assessments of cities in permafrost regions.

外文关键词：

Remote sensingLand surface temperatureLand use/Land coverPermafrostYakutsk

作者：

Xiang-Long LI、Ze ZHANG、Jin-Xin LU、Anatoli BROUCHKOV、Qing-Kai YAN、Qi-Hao YU、Sheng-Rong ZHANG、Andrey MELNIKOV

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作者单位：

School of Civil Engineering and Transportation,Institute of Cold Regions Science and Engineering,Permafrost Institute,Northeast Forestry University,Harbin 150040,China

China Railway Qinghai-Tibet Group Company,Xining 810000,China

Department of Geocryology,Faculty of Geology,Lomonosov Moscow State University,Moscow 119234,Russian Federation

State Key Laboratory of Frozen Soil Engineering,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China

Melnikov Permafrost Institute,Siberian Branch,Russian Academy of Science,Yakutsk 677010,Russian Federation

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基金：

National Natural Science Foundation of China(NSFC)Scientific and technological Research and Development Project of Qinghai-Tibet GroupHeilongjiang Transportation Investment Group Co.,Ltdspecial project for the investigation of basic science and technology resourcesKey Research and Development Program guidance project of Heilongjiang provinceKey Research and Development Program guidance project of Heilongjiang provinceFundamental Research Funds for the Central Universities

项目编号：

42011530083QZ2022-G02JT-100000-ZC-FW-2021-01292022FY100702GZ20220095GZ202200522572022AW58

出版年：

2024

DOI：

10.1016/j.accre.2024.01.002

气候变化研究进展(英文版)

国家气候中心

气候变化研究进展(英文版)

影响因子：0.806

ISSN：1674-9278

年,卷(期)：2024.15(1)

参考文献量42