Preparatory works for the altimeter calibration of the Sentinel-3 mission using the dedicated calibration site in Crete and Gavdos

Stelios P. Mertikas; A. Daskalakis; Ef. Koutroulis; A. Tripolitsiotis; P. Partsinevelos

doi:10.1117/12.899133

7 October 2011 Preparatory works for the altimeter calibration of the Sentinel-3 mission using the dedicated calibration site in Crete and Gavdos

Stelios P. Mertikas, A. Daskalakis, Ef. Koutroulis, A. Tripolitsiotis, P. Partsinevelos

Author Affiliations +

Proceedings Volume 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011; 81750U (2011) https://doi.org/10.1117/12.899133
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

The importance of satellite altimetry in monitoring the complex ocean-atmosphere system led to the approval of the Sentinel-3 ocean topography mission. This mission is scheduled to be launched in 2013. It will incorporate new instruments and measuring modes that are expected to provide high-accuracy measurements for the determination of sea level as well as ocean and land color, sea and land surface temperature with improved spatial and temporal coverage. Nevertheless, satellite altimeter measurements, as in also the case for Sentinel-3, of homogenous quality and reliability have to be maintained over longer periods of time. Hence, the Sentinel-3 altimetry observations, such as sea-surface heights and sea-level anomaly fields, need to be continuously and independently connected in a common, reliable but also long-term manner. This can be achieved by satellite calibration using dedicated research infrastructures. A permanent calibration facility for satellite altimeters has been operating in Gavdos island, Greece as of 2004. This facility has already been successfully and continuously determined the OSTM/Jason-2 altimeter bias. This work presents the plans and actions to be performed to calibrate the altimeter of Sentinel-3, using the existing Gavdos Cal/Val facility, as well as the newly developed microwave transponder.

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Stelios P. Mertikas, A. Daskalakis, Ef. Koutroulis, A. Tripolitsiotis, and P. Partsinevelos "Preparatory works for the altimeter calibration of the Sentinel-3 mission using the dedicated calibration site in Crete and Gavdos", Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011, 81750U (7 October 2011); https://doi.org/10.1117/12.899133

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