Assimilation of GRACE tide solutions into a numerical hydrodynamic inverse model

被引：16

作者：

Egbert, G. D. ^{[1
]}

Erofeeva, S. Y. ^{[1
]}

Han, S. -C. ^{[2
,3
]}

Luthcke, S. B. ^{[2
]}

Ray, R. D. ^{[2
]}

机构：

[1] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Univ Maryland Baltimore Cty, GEST, Baltimore, MD 21228 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

基金：

美国国家航空航天局;

关键词：

GLOBAL OCEAN; SYSTEM; EARTH;

D O I：

10.1029/2009GL040376

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We assimilate localized mass anomalies inferred from GRACE ranging measurements into a hydrodynamic model to improve tidal solutions around Antarctica for the M-2, S-2, and O-1 constituents. The variational approach used accounts for the spatial averaging of tidal elevations implicit in the mass anomaly parametrization used for the GRACE tidal analysis, as well as spatial correlation of errors in the resulting estimates. The inverse solution shows better agreement with independent station tide measurements around Antarctica, and it reduces cross-over residuals for ICESat laser altimeter data over the Filchner, Ronne and Ross Ice Shelves, demonstrating that GRACE data can provide useful constraints for improving hydrodynamic tidal models at high latitudes. Citation: Egbert, G. D., S. Y. Erofeeva, S.-C. Han, S. B. Luthcke, and R. D. Ray (2009), Assimilation of GRACE tide solutions into a numerical hydrodynamic inverse model, Geophys. Res. Lett., 36, L20609, doi: 10.1029/2009GL040376.

引用

页数：5

共 20 条

[1] Modeling the barotropic response of the global ocean to atmospheric wind and pressure forcing -: comparisons with observations -: art. no. 1275 [J].

Carrère, L ;

Lyard, F .

GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (06) :8-1

[2]

Egbert GD, 2002, J ATMOS OCEAN TECH, V19, P183, DOI 10.1175/1520-0426(2002)019<0183:EIMOBO>2.0.CO

[3]

[4] Ice shelf grounding zone structure from ICESat laser altimetry [J].

Fricker, Helen Amanda ;

Padman, Laurie .

GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (15)

[5] GRACE observations of M2 and S2 ocean tides underneath the Filchner-Ronne and Larsen ice shelves, Antarctica -: art. no. L20311 [J].

Han, SC ;

Shum, CK ;

Matsumoto, K .

GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (20) :1-5

[6] Ocean tidal solutions in Antarctica from GRACE inter-satellite tracking data [J].

Han, Shin-Chan ;

Ray, Richard D. ;

Luthcke, Scott B. .

GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (21)

[7] Accuracy assessment of ocean tide models around Antarctica [J].

King, MA ;

Padman, L .

GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (23) :1-4

[8] Modelling the global ocean tides: modern insights from FES2004 [J].

Lyard, Florent ;

Lefevre, Fabien ;

Letellier, Thierry ;

Francis, Olivier .

OCEAN DYNAMICS, 2006, 56 (5-6) :394-415

[9] NUMERICAL SIMULATIONS OF THE ROSS SEA TIDES [J].

MACAYEAL, DR .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1984, 89 (NC1) :607-615

[10] Antarctic ice mass balance estimates from GRACE: Tidal aliasing effects [J].

Moore, Philip ;

King, Matt A. .

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2008, 113 (F2)

← 1 2 →