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Spatio-Temporal Trends of Surface Energy Budget in Tibet from Satellite Remote Sensing Observations and Reanalysis Data
Mazhar, Usman1,2; Jin, Shuanggen1,2,3; Duan, Wentao1,2; Bilal, Muhammad4; Ali, Md. Arfan4; Farooq, Hasnain1
2021
Source PublicationREMOTE SENSING
Volume13Issue:2Pages:20
AbstractBeing the highest and largest land mass of the earth, the Tibetan Plateau has a strong impact on the Asian climate especially on the Asian monsoon. With high downward solar radiation, the Tibetan Plateau is a climate sensitive region and the main water source for many rivers in South and East Asia. Although many studies have analyzed energy fluxes in the Tibetan Plateau, a long-term detailed spatio-temporal variability of all energy budget parameters is not clear for understanding the dynamics of the regional climate change. In this paper, satellite remote sensing and reanalysis data are used to quantify spatio-temporal trends of energy budget parameters, net radiation, latent heat flux, and sensible heat flux over the Tibetan Plateau from 2001 to 2019. The validity of both data sources is analyzed from in situ ground measurements of the FluxNet micrometeorological tower network, which verifies that both datasets are valid and reliable. It is found that the trend of net radiation shows a slight increase. The latent heat flux increases continuously, while the sensible heat flux decreases continuously throughout the study period over the Tibetan Plateau. Varying energy fluxes in the Tibetan plateau will affect the regional hydrological cycle. Satellite LE product observation is limited to certain land covers. Thus, for larger spatial areas, reanalysis data is a more appropriate choice. Normalized difference vegetation index proves a useful indicator to explain the latent heat flux trend. Despite the reduction of sensible heat, the atmospheric temperature increases continuously resulting in the warming of the Tibetan Plateau. The opposite trend of sensible heat flux and air temperature is an interesting and explainable phenomenon. It is also concluded that the surface evaporative cooling is not the indicator of atmospheric cooling/warming. In the future, more work shall be done to explain the mechanism which involves the complete heat cycle in the Tibetan Plateau.
Keywordoptical remote sensing ERA5 surface energy budget energy flux trends tibetan plateau
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
DOI10.3390/rs13020256
Language英语
Funding ProjectNational Natural Science Foundation of China[41771069] ; Jiangsu Province Distinguished Professor Project[R2018T20] ; Startup Foundation for Introducing Talent of NUIST[2243141801036] ; China Scholarship Council (CSC)
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu Province Distinguished Professor Project ; Jiangsu Province Distinguished Professor Project ; Startup Foundation for Introducing Talent of NUIST ; Startup Foundation for Introducing Talent of NUIST ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Remote Sensing
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing
WOS IDWOS:000611561500001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79817
Collection中国科学院国家天文台
Corresponding AuthorJin, Shuanggen
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China
2.Jiangsu Engn Ctr Collaborat Nav Positioning & Sma, Nanjing 210044, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
4.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China
Recommended Citation
GB/T 7714
Mazhar, Usman,Jin, Shuanggen,Duan, Wentao,et al. Spatio-Temporal Trends of Surface Energy Budget in Tibet from Satellite Remote Sensing Observations and Reanalysis Data[J]. REMOTE SENSING,2021,13(2):20.
APA Mazhar, Usman,Jin, Shuanggen,Duan, Wentao,Bilal, Muhammad,Ali, Md. Arfan,&Farooq, Hasnain.(2021).Spatio-Temporal Trends of Surface Energy Budget in Tibet from Satellite Remote Sensing Observations and Reanalysis Data.REMOTE SENSING,13(2),20.
MLA Mazhar, Usman,et al."Spatio-Temporal Trends of Surface Energy Budget in Tibet from Satellite Remote Sensing Observations and Reanalysis Data".REMOTE SENSING 13.2(2021):20.
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