FN Archimer Export Format
PT J
TI Performances study of interferometric radar altimeters: from the instrument to the global mission definition
BT 
AF ENJOLRAS, Vivien
   VINCENT, Patrick
   SOUYRIS, Jean-Claude
   RODRIGUEZ, Ernesto
   PHALIPPOU, Laurent
   CAZENAVE, Anny
AS 1:2;2:3;3:1;4:4;5:5;6:1,2;
FF 1:;2:;3:;4:;5:;6:;
C1 Ctr Natl Etud Spatiales, F-31055 Toulouse 4, France.
   LEGOS, F-31400 Toulouse, France.
   IFREMER, F-92138 Issy Les Moulineaux, France.
   JPL, Pasadena, CA 91109 USA.
   ALCATEL SPACE, F-31000 Toulouse, France.
C2 CNES, FRANCE
   LEGOS, FRANCE
   IFREMER, FRANCE
   JPL, USA
   ALCATEL SPACE, FRANCE
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 1.373
TC 27
UR https://archimer.ifremer.fr/doc/00284/39507/38002.pdf
LA English
DT Article
DE ;altimetry;interferometry;error budget;system analysis;ocean;mesoscale
AB The main limitations of standard nadir-looking radar altimeters have been known for long. They include the lack of coverage (intertrack distance of typically 150 km for the T/P / Jason tandem), and the spatial resolution ( typically 2 km for T/P and Jason), expected to be a limiting factor for the determination of mesoscale phenomena in deep ocean. In this context, various solutions using off-nadir radar interferometry have been proposed by Rodriguez and al to give an answer to oceanographic mission objectives. This paper addresses the performances study of this new generation of instruments, and dedicated mission. A first approach is based on the Wide-Swath Ocean Altimeter (WSOA) intended to be implemented onboard Jason-2 in 2004 but now abandoned. Every error domain has been checked: the physics of the measurement, its geometry, the impact of the platform and external errors like the tropospheric and ionospheric delays. We have especially shown the strong need to move to a sun-synchronous orbit and the non-negligible impact of propagation media errors in the swath, reaching a few centimetres in the worst case. Some changes in the parameters of the instrument have also been discussed to improve the overall error budget. The outcomes have led to the definition and the optimization of such an instrument and its dedicated mission.
PY 2006
PD MAR
SO Sensors
SN 1424-8220
PU Mdpi Ag
VL 6
IS 3
UT 000237609200004
BP 164
EP 192
DI 10.3390/s6030164
ID 39507
ER

EF