Abstract
The quasi-permanent sea surface slope, i.e. the signature of oceanic currents that does not vanish when dynamic topography observations are averaged over a long period of time, will be resolved up to spatial scales of about 100 km by the GOCE space gravity mission. However, estimates of the quasi-permanent ocean dynamic topography, derived qualitatively either from models or from observations, indicate that some non-negligible residual signal remains below 100 km in areas of strong surface currents like the core of the Gulf Stream. One therefore expects that future missions can improve our knowledge of the ocean circulation in these areas. However, the potential improvements are small compared to the improvements expected from GOCE itself.
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D.B. Chelton R.A. Szoeke Particlede M.G. Schlax K El Naggar N. Siwertz (1998) ArticleTitle‘Geographical Variability of the First-Baroclinic Rossby Radius of Deformation’ J. Phys. Oceanogr. 28 433–460 Occurrence Handle10.1175/1520-0485(1998)028<0433:GVOTFB>2.0.CO;2
D.B. Chelton M.G. Schlax M.H. Freilich R.F. Milliff (2004) ArticleTitle‘Satellite Measurements Reveal Persistent Small-Scale Features in Ocean Winds’ Science 303 978–983 Occurrence Handle10.1126/science.1091901 Occurrence Handle14726595
European Space Agency: (1999), ‘The Four Candidate Earth Explorer Core Missions – Gravity-Field and Steady-State Ocean Circulation’, ESA report SP-1233, ESA Publication Division, c/o ESTEC, Noordwijk, The Netherlands
A.E. Gill (1982) Atmosphere-Ocean Dynamics Academic Press New York 662
Grilli, F. and Pinardi, N.: (1998), ‘The Computation of Rossby Radii of Deformation for the Mediterranean Sea’, MTP news 6, 4
K Haines R Hipkin C Beggan R Bingley F Hernandez J Holt T Baker R.J. Bingham (2003) ArticleTitle‘Combined Use of Altimetry and in situ Gravity Data for Coastal Dynamics Studies’ Space Sci. Rev. 108 205–216 Occurrence Handle10.1023/A:1026158921310
T Keffer D.G. Martinson B.H. Corliss (1988) ArticleTitle‘The position of the Gulf Stream during quaternary deglaciations’ Sci. 241 440–442
P. LeGrand (2001) ArticleTitle‘Impact of the Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) Mission on Ocean Circulation Estimates Volume Fluxes in a Climatological Inverse Model of the Atlantic’. J. Geophys. Res. 106 19,597–19,610
P LeGrand E.J.O. Schrama J. Tournadre (2003) ArticleTitle‘An Inverse Modeling Estimate of the Dynamic Topography of the Ocean’ Geophys. Res. Lett. 30 1062–1065 Occurrence Handle10.1029/2002GL014917
C. Provost ParticleLe M. Brémond (2003) ArticleTitle‘Resolution Needed for an Adequate Determination of the Mean Ocean Circulation from Altimetry and an Improved Geoid’ Space Sci. Rev. 108 163–178 Occurrence Handle10.1023/A:1026146503564
U. Pflaumann et al. (2003) ArticleTitle‘Glacial North Atlantic: Sea Surface Conditions Reconstructed by GLAMAP 2000’ Paleoceanography 18 IssueID3 1065 Occurrence Handle10.1029/2002PA000774
Rodriguez, E. and Pollard B. P.: (2001), ‘Report of the High-Resolution Ocean Topography Science Working Group Meeting’, D. B. Chelton (ed.), College of Oceanic and Atmospheric Sciences, OSU, Corvallis, Oregon
C.G. Rossby (1938) ArticleTitle‘On the Mutual Adjustment of Pressure and Velocity Distributions in Certain Simple Current Systems’ II, J. Mar. Res. 2 239–263
J Schroter M Losch B. Sloyan (2002) ArticleTitle‘Impact of the Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) Mission on Ocean Circulation Estimates. Volume and Heat Transports Across Hydrographic Sections of Unequally Spaced Stations’ J.Geophys.Res. 107 4-1–4-20
K.S. Smith G.K. Vallis (2001) ArticleTitle‘The Scales and Equilibration of Midocean Eddies: Freely Evolving Flow’ J. Phys. Oceanogr. 31 554–571 Occurrence Handle10.1175/1520-0485(2001)031<0554:TSAEOM>2.0.CO;2
A.M. Treguier T Reynaud T Pichevin B Barnier J.M. Molines A.P. Miranda Particlede C Messager J.O. Beismann G Madec N Grima M. Imbard C. Levy (1999) ArticleTitle‘The CLIPPER Project : High Resolution Modeling of the Atlantic’ Int. WOCE Newslett. 36 3–5
H. Uchida S. Imawaki (2003) ArticleTitle‘Eulerian Mean Surface Velocity Field Derived by Combining Drifter and Satellite Altimeter Data’ Geophys. Res. Lett. 30 IssueID5 1229 Occurrence Handle10.1029/2002GL016445
P.L. Woodworth J Johannessen P LeGrand C Provost ParticleLe G Balmino R Rummel R Sabadini H Sunkel C.C. Tscherning P. Visser (1998) ArticleTitle‘Towards the Definitive Space Gravity Mission’ Int. WOCE Newslett. 33 37–40
C. Wunsch (1997) ArticleTitle‘The Vertical Partition of Oceanic Horizontal Kinetic Energy’ J. Phys. Oceanogr. 27 1770–1794 Occurrence Handle10.1175/1520-0485(1997)027<1770:TVPOOH>2.0.CO;2
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Legrand, P. Future Gravity Missions and Quasi-steady Ocean Circulation. Earth Moon Planet 94, 57–71 (2004). https://doi.org/10.1007/s11038-004-7606-9
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DOI: https://doi.org/10.1007/s11038-004-7606-9