Vertical motion at TEHN (Iran) from Caspian Sea and other environmental loads

doi:10.1016/j.jog.2018.10.003

CORC > 上海天文台 > 中国科学院上海天文台

	Vertical motion at TEHN (Iran) from Caspian Sea and other environmental loads
	Wang, Song-Yun 1,2,5; Chen, J. L.3; Wilson, C. R.3,4; Li, Jin 1,2,5; Hu, Xiao-Gong 2,6
刊名	JOURNAL OF GEODYNAMICS
	2018-12-01
卷号	122 页码:17-24
关键词	Caspian Sea TEHN Loading deformation GPS GRACE
ISSN号	0264-3707
DOI	10.1016/j.jog.2018.10.003
英文摘要	We compare Global Positioning System (GPS) height time series at GPS station TEHN in Tehran, Iran, with predicted load deformation from various sources, including the Caspian Sea, the atmosphere, terrestrial water storage (TWS), the oceans, and glacial isostatic adjustment (GIA). The study covers the period October 2004 to December 2015, and uses data from the Gravity Recovery and Climate Experiment (GRACE), satellite altimetry, and data-assimilating climate models. Predicted load deformation agrees well with an average of 4 GPS height time series (JPL, SOPAC, MEaSUREs and NGL) at both seasonal and longer timer time scales. At seasonal time scales, changes in atmospheric pressure and TWS are dominant, while groundwater depletion and Caspian Sea level change account for about 85% of the similar to 1 mm/yr average uplift rate. TWS loading derived from GRACE mascon solutions leads to better agreement with GPS results (in combination with other components) than that from GRACE spherical harmonics solutions, benefited from improved accuracy and spatial resolution of GRACE mascons. The four GPS height time series show good consistency at long-term time scales, but significantly large discrepancy at seasonal time scales for undocumented reasons. We discuss possible error sources for GPS observations and loading computation.
资助项目	UCAS Joint PhD Training Program[UCAS [2015]37] ; Geology Foundation of the University of Texas ; Natural Science Foundation of China[11873075] ; Natural Science Foundation of Shanghai[17ZR1435600] ; Open Fund of State Key Laboratory of Geodesy and Earth's Dynamics[SKLGED2018-2-2-E] ; Open Fund of Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University[16-01-05] ; National Key Research and Development Program of China[2016YFB0501405] ; Opening Project of Shanghai Key Laboratory of Space Navigation of Positioning Techniques
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000453643500002
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32033]
专题	中国科学院上海天文台
通讯作者	Wang, Song-Yun
作者单位	1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China 3.Univ Texas Austin, Ctr Space Res, Austin, TX 78712 USA 4.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA 5.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan, Hubei, Peoples R China 6.Shanghai Key Lab Space Nav & Positioning Tech, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Wang, Song-Yun,Chen, J. L.,Wilson, C. R.,et al. Vertical motion at TEHN (Iran) from Caspian Sea and other environmental loads[J]. JOURNAL OF GEODYNAMICS,2018,122:17-24.
APA	Wang, Song-Yun,Chen, J. L.,Wilson, C. R.,Li, Jin,&Hu, Xiao-Gong.(2018).Vertical motion at TEHN (Iran) from Caspian Sea and other environmental loads.JOURNAL OF GEODYNAMICS,122,17-24.
MLA	Wang, Song-Yun,et al."Vertical motion at TEHN (Iran) from Caspian Sea and other environmental loads".JOURNAL OF GEODYNAMICS 122(2018):17-24.