Skip to Main content Skip to Navigation
Journal articles

Corsica: A 20-Yr Multi-Mission Absolute Altimeter Calibration Site

Abstract : Initially developed for monitoring the performance of TOPEX/Poseidon and follow-on Jason legacy satellite altimeters, the Corsica geodetic facilities that are located both at Senetosa Cape and near Ajaccio have been developed to calibrate successive satellite altimeters in an absolute sense. Since 1998, the successful calibration process used to calibrate most of the oceanographic satellite altimeter missions has been regularly updated in terms of in situ instruments, geodetic measurements and methodologies. In this study, we present an assessment of the long-term stability of the in situ instruments in terms of sea level monitoring that include a careful monitoring of the geodetic datum. Based on this 20-yr series of sea level measurements, we present a review of the derived absolute Sea Surface Height (SSH) biases for the following altimetric missions based on the most recent reprocessing of their data set: TOPEX/Poseidon and Jason-1/2/3, Envisat and ERS-2, CryoSat-2, SARAL/AltiKa and Sentinel-3A&B. For the longest time series the standard error of the absolute SSH biases is now at a few millimeters level which is fundamental to maintain the high level of confidence that scientists have in the global mean sea level rise.
Document type :
Journal articles
Complete list of metadata
Contributor : Hal Sorbonne Université Gestionnaire Connect in order to contact the contributor
Submitted on : Tuesday, October 19, 2021 - 10:51:27 AM
Last modification on : Friday, December 3, 2021 - 11:42:49 AM


 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2022-01-19

Please log in to resquest access to the document



Pascal Bonnefond, P. Exertier, O. Laurain, T. Guinle, P. Féménias. Corsica: A 20-Yr Multi-Mission Absolute Altimeter Calibration Site. Advances in Space Research, Elsevier, 2021, 68 (2), pp.1171-1186. ⟨10.1016/j.asr.2019.09.049⟩. ⟨hal-03384846⟩



Record views