Validation and Applications of Near-Real Time Altimetry Data for Operational Oceanography in Coastal and Shelf Seas



AbstractNear-real time altimetry products from ENVISAT RA-2, Jason 1 and Topex/Poseidon tandem mission are validated for the North Sea and Baltic Sea region to assess the feasibility of using the data for operational purposes. The coverage of the satellite data shows that all Jason 1 and Topex/Poseidon observations in the Baltic Sea are currently discarded in the processing of the data. The spatial scales of the sea level variability are determined from a combination of satellite altimetry and tide data. The characteristic time scales are derived from hourly observations from 45 tide gauges. The near-real time data are compared against delayed satellite data and output from a 2-dimensional storm surge model to derive error estimates of 13 cm for ENVISAT, 8 cm for Jason 1 and 8.2 for the T/P tandem mission. The feasibility of using the data for operational purposes is discussed for different sub regions.
KeywordsENVISAT, satellite altimetry, validation, operational applications
TypeConference paper [With referee]
ConferenceProceedings of the 2004 Envisat & ERS Symposium, 6-10 September 2004
Year2005    Month April
PublisherESA
AddressSalzburg, Austria
ISBN / ISSN92-9092-883-2
Electronic version(s)[pdf]
Publication linkhttp://earth.esa.int/workshops/salzburg04/papers_posters/3a4_hoeyer_120.pdf
BibTeX data [bibtex]
IMM Group(s)Image Analysis & Computer Graphics, Geoinformatics