干旱区生态环境知识资源中心(Arid): Prospects for Imaging Terrestrial Water Storage in South America Using Daily GPS Observations

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DOI	10.3390/rs11060679
	Prospects for Imaging Terrestrial Water Storage in South America Using Daily GPS Observations
	Ferreira, Vagner G.1,2; Ndehedehe, Christopher E.3,4; Montecino, Henry C.5; Yong, Bin 1,2; Yuan, Peng 6; Abdalla, Ahmed 7; Mohammed, Abubakar S.2
通讯作者	Ferreira, Vagner G.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:6
英文摘要	Few studies have used crustal displacements sensed by the Global Positioning System (GPS) to assess the terrestrial water storage (TWS), which causes loadings. Furthermore, no study has investigated the feasibility of using GPS to image TWS over South America (SA), which contains the world's driest (Atacama Desert) and wettest (Amazon Basin) regions. This work presents a resolution analysis of an inversion of GPS data over SA. Firstly, synthetic experiments were used to verify the spatial resolutions of GPS-imaged TWS and examine the resolving accuracies of the inversion based on checkerboard tests and closed-loop simulations using TWS from the Noah-driven Global Land Data Assimilation System (GLDAS-Noah). Secondly, observed radial displacements were used to image daily TWS. The inverted results of TWS at a resolution of 300 km present negligible errors, as shown by synthetic experiments involving 397 GPS stations across SA. However, as a result of missing daily observations, the actual daily number of available stations varied from 60-353, and only 6% of the daily GPS-imaged TWS agree with GLDAS-Noah TWS, which indicates a root-mean-squared error (RMSE) of less than 100 kg/m(2). Nevertheless, the inversion shows agreement that is better than 0.50 and 61.58 kg/m(2) in terms of the correlation coefficient (Pearson) and RMSE, respectively, albeit at each GPS site.
英文关键词	crustal deformation drought GPS GRACE hydrologic loading
类型	Article
语种	英语
国家	Peoples R China ; Australia ; Chile ; Germany ; USA
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000465615300056
WOS关键词	DROUGHT ; EARTH ; DEFORMATION ; RESOLUTION ; GRAVITY ; MODELS ; MAULE ; SUBSIDENCE ; EQUIVALENT ; VOLCANOS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218351
作者单位	1.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China; 2.Hohai Univ, Sch Earth Sci & Engn, Nanjing 211100, Jiangsu, Peoples R China; 3.Griffith Univ, Australian Rivers Inst, Nathan, Qld 4111, Australia; 4.Griffith Univ, Griffith Sch Environm & Sci, Nathan, Qld 4111, Australia; 5.Univ Concepcion, Dept Ciencias Geodes & Geomat, Campus Los Angeles, Los Angeles 4451032, Chile; 6.Karlsruhe Inst Technol, Geodet Inst, D-76128 Karlsruhe, Germany; 7.Louisiana State Univ, Dept Civil & Environm Engn, Ctr Geoinformat, Baton Rouge, LA 70803 USA
推荐引用方式 GB/T 7714	Ferreira, Vagner G.,Ndehedehe, Christopher E.,Montecino, Henry C.,et al. Prospects for Imaging Terrestrial Water Storage in South America Using Daily GPS Observations[J]. 河海大学,2019,11(6).
APA	Ferreira, Vagner G..,Ndehedehe, Christopher E..,Montecino, Henry C..,Yong, Bin.,Yuan, Peng.,...&Mohammed, Abubakar S..(2019).Prospects for Imaging Terrestrial Water Storage in South America Using Daily GPS Observations.REMOTE SENSING,11(6).
MLA	Ferreira, Vagner G.,et al."Prospects for Imaging Terrestrial Water Storage in South America Using Daily GPS Observations".REMOTE SENSING 11.6(2019).