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D-PAF Quick-Look Sea Surface Height Monitoring with ERS-1 Fast Delivery Altimeter Data

  • M. Anzenhofer
  • W. Bosch
  • Th. Gruber
  • N. Spöcker
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 112)

Abstract

For the ERS-1 mission ESA provides altimeter fast delivery products that are available within three hours after measurement. The data consist of time-tagged altimeter range, wind speed, and significant wave height completed by atmospheric corrections. Use and analysis at the German Processing and Archiving Facility (D-PAF) indicate that these altimeter data, when combined with satellite ephemerides, can be very well used for a quick-look monitoring of the sea surface.

For this purpose a preliminary orbit, generated at D-PAF by means of globally acquired laser tracking data is merged into the fast delivery altimeter data. In addition, Earth and ocean tides are computed, atmospheric corrections are improved, orbit error adjustment and digital sampling techniques are used to generate a series of quick-look sea surface height models.

These new products span a time period of 35 days (one repeat cycle) and are processed every week. They compile sea surface heights, an estimated rate of change for the sea surface as well wind speed and wave heights resampled and averaged for the same period of time.

Keywords

Significant Wave Height Ocean Tide Altimeter Data Orbit Error Fast Delivery 
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. Anzenhofer M., Spöcker T., Bosch W., Sea Surface Height Modeling with Improved Geosat Altimeter Data; Anales Geophysicae; Supplement to Volume 10; 1992Google Scholar
  2. Basic T., Rapp R.H., Oceanwide Prediction of Gravity Anomalies and Sea Surface Heights Using Geos-3, Seasat and Geosat Altimeter Data and ETOPOSU Bathymetric Data; Report No. 416; Department of Geodetic Science and Surveying; Columbus, Ohio; 1992Google Scholar
  3. Basic T., Rapp R.H., Oceanwide Prediction of Gravity Anomalies and Sea Surface Heights Using Geos-3, Seasat and Geosat Altimeter Data and ETOPOSU Bathymetric Data; Report No. 416; Department of Geodetic Science and Surveying; Columbus, Ohio; 1992Google Scholar
  4. Schwiderski, E.W., On Charting Global Tides; Rev. of Geophys. Space Phys., 18 (1); 1980Google Scholar
  5. Spöcker T., Erfahrung mit GRIM4–S2 Geosat Orbits; Internal Report (unpublished); DGFI Dept. 1; München, Germany; 1992Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • M. Anzenhofer
    • 1
  • W. Bosch
    • 2
  • Th. Gruber
    • 1
  • N. Spöcker
    • 1
  1. 1.GFZ, c/o DLROberpfaffenhofenGermany
  2. 2.DGFI Dept. 1München 22Germany

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