Abstract The Corsica site has been established in 1996 to perform altimeter calibration on TOPEX/Poseidon and then on its successors Jason-1 and Jason-2. The first chosen location was under the #85 ground track that overflight the Senetosa Cape. In 2005, it was decided to develop another location close to Ajaccio, to be able to perform the calibration of Envisat and in a next future of SARAL/AltiKa that will flight over the same ground tracks. Equipped with various instruments (tide gauges, permanent GPS, GPS buoy, weather station…) the Corsica calibration site is able to quantify the altimeter Sea Surface Height bias but also to give an input on the origin of this bias (range, corrections, orbits, …). Due to the size of Corsica (not a tiny island), the altimeter measurement system (range and corrections) can be contaminated by land. The aim of this paper is to evaluate this land contamination by using GPS measurements from a fixed receiver on land and from another receiver onboard a life buoy. Concerning the altimeter land contamination, we have quantify that this effect can reach 8mm/km and then affects the Sea Surface Height bias values already published in the framework of the Corsica calibration site by 5–8mm for TOPEX and Jason missions. On the other hand, the radiometer measurements (wet troposphere correction) are also sensitive to land and we have been able to quantify the level of improvement of a dedicated coastal algorithm that reconciles our results with those coming from other calibration sites. Finally, we have also shown that the standard deviation of the GPS buoy sea level measurements is highly correlated (∼87%) with the Significant Wave Height derived from the altimeters and can be used to validate such parameter.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    GPS-based sea level measurements to help the characterization of land contamination in coastal areas


    Beteiligte:
    Bonnefond, P. (Autor:in) / Exertier, P. (Autor:in) / Laurain, O. (Autor:in) / Thibaut, P. (Autor:in) / Mercier, F. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 51 , 8 ; 1383-1399


    Erscheinungsdatum :

    2012-01-01


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Wind Lidar and Radiosonde Measurements of Low-Level Jets in Coastal Areas of the German Bight

    Rausch, Thomas / Cañadillas, Beatriz / Hampel, Oliver et al. | BASE | 2022

    Freier Zugriff

    Water/land contamination correction

    Piepmeier, Jeff / Peng, Jinzheng / Chan, Steven et al. | NTRS | 2018


    Marinas in German Coastal Areas

    Fröhle, Peter | BASE | 2008

    Freier Zugriff

    Marinas in German Coastal Areas

    Fröhle, Peter / Kuratorium für Forschung im Küsteningenieurwesen (KFKI) | HENRY – Bundesanstalt für Wasserbau (BAW) | 2008

    Freier Zugriff