DOI: 10.1016/j.gloplacha.2013.07.005
论文题名: Characterization of spatio-temporal patterns for various GRACE- and GLDAS-born estimates for changes of global terrestrial water storage
作者: Yang T. ; Wang C. ; Yu Z. ; Xu F.
刊名: Global and Planetary Change
ISSN: 0921-8259
出版年: 2013
卷: 109 起始页码: 30
结束页码: 37
语种: 英语
英文关键词: Change of terrestrial water storage
; GLDAS
; Global scale
; GRACE-born hydrology products
; Intercomparison
Scopus关键词: GLDAS
; Global scale
; GRACE-born hydrology products
; Intercomparisons
; Terrestrial water storage
; Climate change
; Earth (planet)
; Estimation
; Hydrology
; Research
; Uncertainty analysis
; Geodetic satellites
; accuracy assessment
; annual variation
; estimation method
; global change
; global perspective
; GRACE
; gravity field
; policy making
; spatiotemporal analysis
; uncertainty analysis
; water storage
英文摘要: Since the launch in March 2002, the Gravity Recovery and Climate Experiment (GRACE) satellite mission has provided us with a new method to estimate terrestrial water storage (TWS) variations by measuring earth gravity change with unprecedented accuracy. Thus far, a number of standardized GRACE-born TWS products are published by different international research teams. However, no characterization of spatio-temporal patterns for different GRACE hydrology products from the global perspective could be found. It is still a big challenge for the science community to identify the reliable global measurement of TWS anomalies due to our limited knowledge on the true value. Hence, it is urgently necessary to evaluate the uncertainty for various global estimates of the GRACE-born TWS changes by a number of international research organizations. Toward this end, this article presents an in-depth analysis for various GRACE-born and GLDAS-based estimates for changes of global terrestrial water storage. The work characterizes the inter-annual and intra-annual variability, probability density variations, and spatial patterns among different GRACE-born TWS estimates over six major continents, and compares them with results from GLDAS simulations. The underlying causes of inconsistency between GRACE- and GLDAS-born TWS estimates are thoroughly analyzed with an aim to improve our current knowledge in monitoring global TWS change. With a comprehensive consideration of the advantages and disadvantages among GRACE- and GLDAS-born TWS anomalies, a summary is thereafter recommended as a rapid reference for scientists, end-users, and policy-makers in the practices of global TWS change research. To our best knowledge, this work is the first attempt to characterize difference and uncertainty among various GRACE-born terrestrial water storage changes over the major continents estimated by a number of international research organizations. The results can provide beneficial reference to usage of different GRACE hydrology products to study TWS changes in different regions of the world. © 2013 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881306609&doi=10.1016%2fj.gloplacha.2013.07.005&partnerID=40&md5=a662db8f6364ae067bf968440d798b3b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11165
Appears in Collections: 全球变化的国际研究计划
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作者单位: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Center for Global Change and Water Cycle, Hohai University, Nanjing 210098, China
Recommended Citation:
Yang T.,Wang C.,Yu Z.,et al. Characterization of spatio-temporal patterns for various GRACE- and GLDAS-born estimates for changes of global terrestrial water storage[J]. Global and Planetary Change,2013-01-01,109.