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How Operational Oceanography can Benefit from Dynamic Topography Estimates as Derived from Altimetry and Improved Geoid

  • P. Y. Le Traon
  • F. Hernandez
  • M. H. Rio
  • F. Davidson
Part of the Space Sciences Series of ISSI book series (SSSI, volume 17)

Abstract

With a precise geoid, GOCE will allow an estimation of absolute dynamic topography from altimetry. The projected benefits to operational oceanography arid its applications are analyzed herein. Alter a brief overview of operational oceanography. we explain how the new geoids will be used in the future to improve real time altimeter products and to better constrain modelling and data assimilation systems. A signilleant impact is expected both for mesoscale (e.g. better estimations and forecasts of currents for pollution monitoring, marine safety. offshore industry) and climate (better initialization of coupled ocean/atmosphere models) applications.

Keywords

Data Assimilation Satellite Altimetry Western Boundary Current Geoid Model Mean Dynamic Topography 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Davis. RE.: 1998. ‘Preliminary results from directly measuring mid-depth circulation in the tropical and South Pacific’, J. Geophvs. Res. 103. 24619–24639.Google Scholar
  2. Dighy. S.. Antczak. T.. Lehen. R,. Born. 0.. Barth. S.. Cheney. R, Foley. I).. Goni. Ci.. Jacobs, C.. and Shay. N.: 1999. ‘Altimeter data for operational use in the marine environment’, IEEE/MTS ConS ference Oceans 99. Seattle. September 1999. 9 pp.Google Scholar
  3. Flemming. NC.: 1997, ‘Estimates of the costs and benefits of operational oceanography at the single industry level’, in J. Stel ted.), Operadonal Oceanography. the challenge for European co-operas ion. Elsei’ier 0 ceanog;vphv Series 62. pp. 269 – 277.CrossRefGoogle Scholar
  4. Flemniing. N. C.:. 2001. ‘Dividends from Investing in Ocean Observations: A European Perspective’. in C. J. Koblinsky and N. R. Smith (eds.). Observing the Oceans in the 21’Century, GODAE Project Office. Bureau of Meteorology. pp. 66 – 84.Google Scholar
  5. IOC (Intergovernmental Oceanographic Commission): 1998. The GOOS 1998. COOS Publication No. 42, Paris, pp. 144.Google Scholar
  6. Guinehut. S.: 2002. ‘Vers une utilisation comhinëe des donndes altimdtriques et des mesures des flotteurs profilants’. Phd Thesis, tjniversijd Paul Sahatier, Toulouse. 168 pp.Google Scholar
  7. l-lernandez. F.: 1998. ‘Estimation d’un gdoIde synthétique sur Ia zone Semaphore’. Rappon final. Contrat SHOM/CLS No. 97.87.003.00.470.29. 45, 32 pp.Google Scholar
  8. Imawaki. S. and Uehida. H,: 1997. ‘Time series of the Kuroshio transport derived I’rom held observations and altimetry data’. International WOCE Newsletter 25. 15 – 18.Google Scholar
  9. imawaki. S.. Uchida. H.. lehikawa. K.. and Ambe. D.: 2003. ‘Estimating the high-resolution mean sea-surface velocity Field by combined use of altimeter and drifter data for geoid model improvement’. Space Sri. Rev., this volume.Google Scholar
  10. Killworth. PD, Dieterich, C., Le Provost. C.. Oschlies, A., and Willebrand. J.: 200l, ‘Assimilation of altimeiric data and mean sea surface into an eddy-permitting model of the North Atlantic’. Progress in Oceanography 48, 313 – 335.Google Scholar
  11. Le Grand. P. and Minster. J. F.: 999. ‘Impact of the GOCE gravity mission on ocean circulation estimates’. Geoph. Res. Letters 26. 1881 – 1884.Google Scholar
  12. Lemoine. F. G. ci aL: 1998. The Development of the John NASA GSFC and NJMA Geoporentia! Mode! EGM96, NASA Goddard Space Flight Center. Grccnbelt, Maryland. 20771 USA, 466 pp.Google Scholar
  13. Le Provost. C. Le Grand, B. Domhrowsky, F. Le Traon, BY., Losch, M. Ponehaut. F.. SehrOter. J,. Sloyan. B.. Sneeuw, N.: 1999. Impact of GOCE for ocean circulation studies. ESA study contract l3175198/NIJGD. Final Report. 157 pp.Google Scholar
  14. Le Provost, C., and Brcmond, M.: 2003, ‘Resolution needed for an adequate determination of the mean ocean circulation from altimetry and and improved geoid’, Space Sci. Ret and. this volume.Google Scholar
  15. Le Traon. P.-Y. Rienecker. M. Smith. N.. Bahurel. P.. Bell. M.. Hurlhurt. H.. and Dandin. B: 2001. ‘Operational Oceanography and Prediction — a GODAE Perspective’, in C. J. Kohlinsky and N. R. Smith (eds.), Observing the Oceans in the 2P Century. GODAE Project 001cc. Bureau of Meteorology. pp. 529 – 545.Google Scholar
  16. Mitchell. i. L. Dastugue.1. M. Teague. W. J. Halloek. Z. it: 1990. ‘The estimation of geoid profiles in the northwest Atlantic from simultaneous satellite altimetry and airborne expendable hathythermograph sections’. J. Geoph-vs. Rn, 95. 17.965–17. 977.Google Scholar
  17. Roemmich. D., Boebel, D. O., I)esauhies, Y., Freeland. H. Kim, K., King. B. Le Traon. B Y., Molinan. B. Owens. B. Riser. S. Send. U. Takeuchi. K. and Wijftels, 5.: 2001, ‘Argo: The Global Array of Profiling Floats’, in C. J. Koblinsky and N. R. Smith (eds.). Observing the Oceans in the 21° Century. GODAE Project 0111cc. Bureau of Meteorology. pp. 248 – 258.Google Scholar
  18. Smith. RD. Maltrud. ME. Bryan. P0.. and Hecht. M.W.: 2000. ‘Numerical simulation of the North Atlantic ocean at 1110°’. J. Pins. Oceanogr 30. 7, 1532–1561.Google Scholar
  19. The International GODAE Steering Team: 20(11. The Global Ocean Data Assimilation Experiment Strategic Plan. GODAE report no. 6. GODAE International Project Office. Australia. Melbourne. 26 pp.Google Scholar
  20. Wiilchrand, J. Barnier, B., Boning. C., Dietcrich. C. Killworth. B D., Le Provost. C., Jia, Y. Molines,J.M. New. AL: 2001. ‘Circulation characteristics in three eddy-permitting moclelsof the North Atlantic’, Progress in Oceanography 48. 123 – 161.CrossRefGoogle Scholar
  21. Woodworth. P.L.. Johannessen. J. Le Grand. P. Le Provost. C-. Balmino. G. Rummet. R.. Sabadini. R., Suenkel. H., Tscherning. C.C., Visser. P.: 1998, ‘Towards the definitive space gravity mission’, International WOCE Newsletter 33. 37–40 and 24.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • P. Y. Le Traon
    • 1
  • F. Hernandez
    • 1
  • M. H. Rio
    • 1
  • F. Davidson
    • 1
  1. 1.CLS Space Oceanography DivisionRamonville st AgneFrance

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