DOI: 10.1002/2013GL058093
论文题名: Horizontal motion in elastic response to seasonal loading of rain water in the Amazon Basin and monsoon water in Southeast Asia observed by GPS and inferred from GRACE
作者: Fu Y. ; Argus D.F. ; Freymueller J.T. ; Heflin M.B.
刊名: Geophysical Research Letters
ISSN: 0094-8314
EISSN: 1944-8045
出版年: 2013
卷: 40, 期: 23 起始页码: 6048
结束页码: 6053
语种: 英语
英文关键词: Amazon Basin
; GPS
; GRACE
; horizontal seasonal deformation
; Southeast Asia
Scopus关键词: Amazon basin
; GRACE
; Gravity recovery and climate experiments
; Horizontal oscillations
; Hydrological mass
; Southeast Asia
; Spatial resolution
; Vertical oscillations
; Atmospheric thermodynamics
; Deformation
; Global positioning system
; Image resolution
; Rain
; Loading
; crustal movement
; elasticity
; GPS
; GRACE
; monsoon
; rainwater
; seasonality
; water mass
; Amazon Basin
英文摘要: We find seasonal horizontal crustal motions observed by GPS positioning in elastic response to heavy rainfall in the Amazon Basin and to monsoons in Southeast Asia to be consistent with those inferred from Gravity Recovery and Climate Experiment (GRACE) gravity observations of water mass loading. Solid Earth moves toward the Amazon during heavy spring rainfall and toward Southeast Asia during summer monsoons and back away from these areas 6 months later when the water load is minimum. Vertical oscillations observed by GPS and inferred from GRACE are 2 to 3 times larger than horizontal oscillation near the margins of the areas of large mass loading. Some discrepancies between GPS and GRACE are probably caused by local effects that influence GPS measurements, because the GPS sites that show significant discrepancies also do not match nearby GPS sites. However, when the load is short wavelength, the limited spatial resolution of GRACE can cause systematic misfits. Key Points Long-wavelength hydrological mass variation causes horizontal crustal motion GPS and GRACE can resolve consistent horizontal seasonal loading deformation Discrepancy is caused by local effects and limited GRACE's spatial resolution ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888774822&doi=10.1002%2f2013GL058093&partnerID=40&md5=2948a9f11cc4aeceb341f4e936c10a1d
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5578
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States
Recommended Citation:
Fu Y.,Argus D.F.,Freymueller J.T.,et al. Horizontal motion in elastic response to seasonal loading of rain water in the Amazon Basin and monsoon water in Southeast Asia observed by GPS and inferred from GRACE[J]. Geophysical Research Letters,2013-01-01,40(23).