A new high-resolution model of non-tidal atmosphere and ocean mass variability for de-aliasing of satellite gravity observations: AOD1B RL06

被引：203

作者：

Dobslaw, H. ^{[1
]}

Bergmann-Wolf, I. ^{[1
]}

Dill, R. ^{[1
]}

Poropat, L. ^{[1
]}

Thomas, M. ^{[1
]}

Dahle, C. ^{[1
]}

Esselborn, S. ^{[1
]}

Koenig, R. ^{[1
]}

Flechtner, F. ^{[1
]}

机构：

[1] Deutsch GeoForschungsZentrum GFZ, Dept Geodesy 1, D-14473 Potsdam, Germany

来源：

GEOPHYSICAL JOURNAL INTERNATIONAL | 2017年 / 211卷 / 01期

关键词：

Global change from geodesy; Loading of the Earth; Satellite gravity; REANALYSIS; OGCM;

D O I：

10.1093/gji/ggx302

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The release 06 (RL06) of the Gravity Recovery and Climate Experiment (GRACE) Atmosphere and Ocean De-Aliasing Level-1B (AOD1B) product has been prepared for use as a time-variable background model in global gravity research. Available since the year 1976 with a temporal resolution of 3 hr, the product is provided in Stokes coefficients up to degree and order 180. RL06 separates tidal and non-tidal signals, and has an improved long-term consistency due to the introduction of a time-invariant reference orography in continental regions. Variance reduction tests performed with globally distributed in situ ocean bottom pressure recordings and sea-surface height anomalies from Jason-2 over a range of different frequency bands indicate a generally improved performance of RL06 compared to its predecessor. Orbit tests for two altimetry satellites remain inconclusive, but GRACE K-band residuals are reduced by 0.031 nm s(-2) in a global average, and by more than 0.5 nm s(-2) at numerous places along the Siberian shelf when applying the latest AOD1B release. We therefore recommend AOD1B RL06 for any upcoming satellite gravimetry reprocessing effort.

引用

页码：263 / 269

页数：7

共 35 条

[1]

[Anonymous], 2010, IERS Conventions (2010)

[2] Evaluation of the ECMWF ocean reanalysis system ORAS4 [J].

Balmaseda, Magdalena Alonso ;

Mogensen, Kristian ;

Weaver, Anthony T. .

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 2013, 139 (674) :1132-1161

[3] Evaluation of high-frequency oceanographic signal in GRACE data: Implications for de-aliasing [J].

Bonin, Jennifer A. ;

Chambers, Don P. .

GEOPHYSICAL RESEARCH LETTERS, 2011, 38

[4]

CNES, 2017, CNESSALPMUMOP15815CN

[5] The ERA-Interim reanalysis: configuration and performance of the data assimilation system [J].

Dee, D. P. ;

Uppala, S. M. ;

Simmons, A. J. ;

Berrisford, P. ;

Poli, P. ;

Kobayashi, S. ;

Andrae, U. ;

Balmaseda, M. A. ;

Balsamo, G. ;

Bauer, P. ;

Bechtold, P. ;

Beljaars, A. C. M. ;

van de Berg, L. ;

Bidlot, J. ;

Bormann, N. ;

Delsol, C. ;

Dragani, R. ;

Fuentes, M. ;

Geer, A. J. ;

Haimberger, L. ;

Healy, S. B. ;

Hersbach, H. ;

Holm, E. V. ;

Isaksen, L. ;

Kallberg, P. ;

Koehler, M. ;

Matricardi, M. ;

McNally, A. P. ;

Monge-Sanz, B. M. ;

Morcrette, J. -J. ;

Park, B. -K. ;

Peubey, C. ;

de Rosnay, P. ;

Tavolato, C. ;

Thepaut, J. -N. ;

Vitart, F. .

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 2011, 137 (656) :553-597

[6] Homogenizing surface pressure time-series from operational numerical weather prediction models for geodetic applications [J].

Dobslaw, H. .

JOURNAL OF GEODETIC SCIENCE, 2016, 6 (01) :61-68

[7] Simulating high-frequency atmosphere-ocean mass variability for dealiasing of satellite gravity observations: AOD1B RL05 [J].

Dobslaw, H. ;

Flechtner, F. ;

Bergmann-Wolf, I. ;

Dahle, C. ;

Dill, R. ;

Esselborn, S. ;

Sasgen, I. ;

Thomas, M. .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2013, 118 (07) :3704-3711

[8]

Dobslaw H., 2016, J GEODESY, V90, P1

[9]

Dobslaw H., 2016, PRODUCT DESCRIPTION

[10] The updated ESA Earth System Model for future gravity mission simulation studies [J].

Dobslaw, Henryk ;

Bergmann-Wolf, Inga ;

Dill, Robert ;

Forootan, Ehsan ;

Klemann, Volker ;

Kusche, Juergen ;

Sasgen, Ingo .

JOURNAL OF GEODESY, 2015, 89 (05) :505-513

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