TY - JOUR T1 - Sea surface state measured using GPS reflected signals - art. no. 2122 A1 - Rius,Antonio A1 - Aparicio,Josep A1 - Cardellach,Estel A1 - Martin Neira,Manuel A1 - Chapron,Bertrand AD - CSIC, IEEC, ES-08034 Barcelona, Spain. AD - ESA, ESTEC, Noordwijk, Netherlands. AD - IFREMER, Brest, France. UR - https://archimer.ifremer.fr/doc/00000/766/ DO - 10.1029/2002GL015524 KW - Signal analysis KW - Reflectrometry KW - Inerferometry KW - Sea surface topography N2 - 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. Y1 - 2002/12 PB - AGU JF - Geophysical Research Letters SN - 0094-8276 VL - 29 IS - 23 ID - 766 ER -