DOI: 10.1002/2014GL059510
论文题名: Mean dynamic topography estimates purely based on GOCE gravity field models and altimetry
作者: Becker S. ; Brockmann J.M. ; Schuh W.-D.
刊名: Geophysical Research Letters
ISSN: 0094-10260
EISSN: 1944-9991
出版年: 2014
卷: 41, 期: 6 起始页码: 2063
结束页码: 2069
语种: 英语
英文关键词: consistent combination
; GOCE
; gravity field
; mean dynamic topography
Scopus关键词: Covariance matrix
; Data processing
; Estimation
; Geodetic satellites
; Topography
; Altimetric observations
; consistent combination
; Error covariance matrix
; GOCE
; Gravity field
; Integrated approach
; Mean dynamic topographies
; Ocean data assimilation
; Planetary surface analysis
; data assimilation
; Envisat-1
; GOCE
; gravity field
; integrated approach
; Jason-1
; numerical model
; satellite altimetry
; spatial resolution
; topographic mapping
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: The quality of mean dynamic topography (MDT) models derived from an altimetric mean sea surface and a gravity field model mainly depends on the spatial resolution and accuracy of the particular gravity field model. We use an integrated approach which allows for estimating the MDT and its (inverse) covariance matrix on a predefined grid which is one of the requirements for ocean data assimilation. The quality and accuracy of the MDT directly reflects the quality and accuracy of the used gravity field model. For the first time, MDT estimates along with its full error covariance matrix based on Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) data can be provided. We demonstrate the progress accomplished with GOCE processing and the valuable contribution of the GOCE gravity field models regarding the estimation of the MDT by showing results based on altimetric observations of Jason-1 and Envisat in combination with different GOCE gravity field models for the North Atlantic. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896418095&doi=10.1002%2f2014GL059510&partnerID=40&md5=e2d6df98ab40006d0304a46d4328a93b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7524
Appears in Collections: 气候减缓与适应
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作者单位: Department of Theoretical Geodesy, Institute of Geodesy and Geoinformation, University of Bonn, Bonn, Germany
Recommended Citation:
Becker S.,Brockmann J.M.,Schuh W.-D.. Mean dynamic topography estimates purely based on GOCE gravity field models and altimetry[J]. Geophysical Research Letters,2014-01-01,41(6).