FN Archimer Export Format
PT J
TI Validating a New GNSS-Based Sea Level Instrument (CalNaGeo) at Senetosa Cape
BT 
AF BONNEFOND, Pascal
   LAURAIN, Olivier
   EXERTIER, Pierre
   CALZAS, Michel
   GUINLE, Thierry
   PICOT, Nicolas
AS 1:1;2:2;3:3;4:4;5:5;6:5;
FF 1:;2:;3:;4:;5:;6:;
C1 aSYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universites, UPMC Univ. Paris 06, LNE, Paris, France
   bUniversite Cote d’Azur, Observatoire de la C^ote d’Azur, CNRS, IRD, Geoazur, Valbonne, France
   Geosciences Environnement Toulouse (GET), Universite de Toulouse, CNRS, IRD, CNES, UT3 - Paul Sabatier (UPS), Toulouse, France
   DT INSU, Batiment IPEV, Plouzane, France;
   CNES, Centre Spatial de Toulouse, Toulouse Cedex 9, France
C2 UPMC UNIV PARIS 06, FRANCE
   UNIV NICE, FRANCE
   UNIV TOULOUSE, FRANCE
   INSU, FRANCE
   CNES, FRANCE
SI TOULON
SE INSU
IF 1.6
TC 3
UR https://archimer.ifremer.fr/doc/00834/94604/101977.pdf
   https://archimer.ifremer.fr/doc/00834/94604/101978.docx
LA English
DT Article
CR VT 160 / FOAM
BO Marion Dufresne
DE ;Calibration and validation;GNSS;satellite altimetry;marine geoid;water level
AB The geodetic Corsica site was set up in 1998 in order to perform altimeter calibration of the TOPEX/Poseidon (T/P) mission and subsequently, Jason-1, OSTM/Jason-2, Jason-3 and more recently Sentinel-6 Michael Freilich (launched on November, 21 2020). The aim of the present study held in June 2015 is to validate a recently developed GNSS-based sea level instrument (called CalNaGeo) that is designed with the intention to map Sea Surface Heights (SSH) over large areas. This has been undertaken using the well-defined geodetic infrastructure deployed at Senetosa Cape, and involved the estimation of the stability of the waterline (and thus the instantaneous separation of a GNSS antenna from water level) as a function of the velocity at which the instrument is towed. The results show a largely linear relationship which is approximately 1 mm/(m/s) up to a maximum practical towing speed of similar to 10 knots (similar to 5 m/s). By comparing to the existing "geoid" map, it is also demonstrated that CalNaGeo can measure a sea surface slope with a precision better than 1 mm/km (similar to 2.5% of the physical slope). Different processing techniques are used and compared including GNSS Precise Point Positioning (PPP, where the goal is to extend SSH mapping far from coastal GNSS reference stations) showing an agreement at the 1-2 cm level. 
PY 2022
PD MAR
SO Marine Geodesy
SN 0149-0419
PU Taylor & Francis Inc
VL 45
IS 2
UT 000736022400001
BP 121
EP 150
DI 10.1080/01490419.2021.2013355
ID 94604
ER

EF