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Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017
Wei Zhao1,2; Juelin He1,3; Gaofei Yin1; Fengping Wen1,2; Hua Wu4
2019
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
Volume124Issue:4Pages:1975-1991
SubtypeArticle
Contribution Rank1
AbstractThe mountainous region affected by the 2008 Wenchuan earthquake was frequently analyzed to assess its vegetation recovery. However, the dynamic of surface thermal environment was rarely investigated but directly influenced local geophysical and biophysical processes. Under this background, this research aimed to analyze the trend of surface temperature based on Moderate Resolution Imaging Spectroradiometer daily land surface temperature product from 2000 to 2017 and understand its change mechanism. An annual temperature cycle model was applied to obtain the daytime and nighttime annual cycle parameters (ACPs), including mean annual surface temperature (MAST), yearly amplitude of surface temperature, and phase shift. The trend analysis with the Mann-Kendall test illustrated the strong inverse relationship between the two ACPs (MAST and yearly amplitude of surface temperature) and elevation, and the nighttime terms showed a stronger connection than those of the daytime. The areas with significant decreases in vegetation coverage induced by the earthquake exhibited an obvious upward trend in daytime MAST and annual maximum temperature, while the vegetation improved areas presented a cooling effect. Comparatively, the nighttime ACPs was little sensitive to vegetation change and the change magnitude was relatively small. For the high mountain area, with the shrinkage of snow cover duration, the global warming effect resulted in a warming trend by increasing the annual minimum temperature at both the daytime and nighttime. Overall, this study provided insights to the impact of the earthquake to mountain thermal environment and its different responses to changes in vegetation cover and climatic environment.
Keywordannual temperature cycle land surface temperature MODIS trend analysis Wenchuan earthquake global change
DOI10.1029/2018JD030007
Indexed BySCI
Language英语
WOS IDWOS:000461856300006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25313
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorWei Zhao; Hua Wu
Affiliation1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China;
2.University of Chinese Academy of Sciences, Beijing, China;
3.College of Earth Sciences, Chengdu University of Technology, Chengdu, China;
4.State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Beijing, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wei Zhao,Juelin He,Gaofei Yin,et al. Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(4):1975-1991.
APA Wei Zhao,Juelin He,Gaofei Yin,Fengping Wen,&Hua Wu.(2019).Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(4),1975-1991.
MLA Wei Zhao,et al."Spatiotemporal Variability in Land Surface Temperature Over the Mountainous Region Affected by the 2008 Wenchuan Earthquake From 2000 to 2017".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.4(2019):1975-1991.
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