Sea surface state measured using GPS reflected signals - art. no. 2122

Type Article
Date 2002-12
Language English
Author(s) Rius Antonio, Aparicio Josep, Cardellach Estel, Martin Neira Manuel, Chapron Bertrand
Affiliation(s) CSIC, IEEC, ES-08034 Barcelona, Spain.
ESA, ESTEC, Noordwijk, Netherlands.
IFREMER, Brest, France.
Source Geophysical Research Letters (0094-8276) (AGU), 2002-12 , Vol. 29 , N. 23 , P. NIL_21-NIL_24
DOI 10.1029/2002GL015524
WOS© Times Cited 73
Keyword(s) Signal analysis, Reflectrometry, Inerferometry, Sea surface topography
Abstract We discuss an airborne experiment aimed to establish the potential of the PARIS concept (PAssive Reflectometry and Interferometry System) to retrieve small features in the sea surface topography. The date and location were chosen to coincide with a TOPEX/POSEIDON (T/P) overflight. The signals of the Global Positioning System (GPS) reflected off the sea surface are tracked and compared to the directly received ones, to compute the relative delays. The features detected in the peak tracking are likely caused by topographic and sea roughness variations. While very promising, these results open the challenge to use additional information to appropriately separate both contributions.
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