Da Silva, E; Woolliams, E R; Picot, N; Poisson, J-C; Skourup, H; Moholdt, G; Fleury, S; Behnia, S; Facier, V; Arnaud, L; Aublanc, J; Fouqueau, V; Taburet, N; Renou, J; Yesou, H; Tarpanelli, A; Camici, S; Hansen, R M F; Nielsen, K; Vivier, F; Boy, F; Fjortoft, R; Cancet, M; Ferrari, R; Picard, G; Tourian, M J; Sneeuw, N; Munesa, E; Calzas, M; Paris, A; Le Meur, E; Rabatel, A; Valladeau, G; Bonnefond, P; Labroue, S; Andersen, O; El Hajj, M; Catapano, F; Famenias, P (2023) Towards operational Fiducial Reference Measurement (FRM) data for the calibration and validation of the Sentinel-3 surface topography mission over inland waters, sea ice and land ice. Remote Sensing, 15 (19). 4826

Preview

Text eid9913.pdf - Published Version Available under License Creative Commons Attribution. Download (2MB) | Preview

Abstract

The Copernicus Sentinel-3 Surface Topography Mission (STM) Land Altimetry products provide valuable surface elevation information over inland waters, sea ice and land ice, thanks to its synthetic aperture radar (SAR) altimeter and to its orbit that covers high-latitude polar regions. To ensure those measurements are reliable and to maximize the return on investment, adequate validation must be performed of the geophysical retrieval methods, processing algorithms and corrections, using independent observations. The EU-ESA project, St3TART (started July 2021) aims to generalize the concept of Fiducial Reference Measurements (FRM) for the Copernicus Sentinel-3 STM. This work has gathered existing data, made new observations during field campaigns, and ensured that these observations meet the criteria of FRM standards so that they can be used to validate the Sentinel-3 STM Land Altimetry products operationally. A roadmap for the operational provision of the FRM, including the definition, consolidation and identification of the most relevant and cost-effective methods and protocols to be maintained, supported or implemented, has been developed. The roadmap includes guidelines for SI traceability, definitions of FRM measurement procedures, processing methods, and uncertainty budget estimations.

Item Type:	Article
Keywords:	S3 land STM; uncertainties; FRM; sea ice thickness; inland water surface height; land ice height; SAR altimeter
Subjects:	Optical Radiation and Photonics > Environment and Climate Change
Divisions:	Thermal & Radiometric Metrology
Identification number/DOI:	10.3390/rs15194826
Last Modified:	29 Jan 2024 14:31
URI:	https://eprintspublications.npl.co.uk/id/eprint/9913