H011-0007
Improving SAR Altimeter processing over the coastal zone and inland water - the ESA HYDROCOASTAL project

Monday, 7 December 2020
Poster
David Cotton1, Albert Garcia-Mondéjar2, Ferran Gibert3, Ester Vendrell3, Christine Gommenginger4, Ole Baltazar Andersen5, Karina Nielsen6, Heidi Ranndal7, Luciana Fenoglio-Marc8, Michele Scagliola9, Mathilde Cancet10, Marcello Passaro11, Denise Dettmering11, Pierre Laurent Fabry12, Nicolas Bercher13, Angelica Tarpanelli14, Stefano Vignudelli15, Francesco de Biasio16, Peter Bauer-Gottwein17, Joana Fernandes18, Clara Lazaro19, Cornelis Slobbe20, Marc Naeije21, Jesus Gomez-Enri22, Peter Thorne Pr.23, Elena Anatolievna Zakharova23, Marco Restano24 and Jérôme Benveniste25, (1)SatOC Satellite Oceanographic Consultants Limited, Bramhall, United Kingdom, (2)isardSAT, Surrey, United Kingdom, (3)isardSAT, Barcelona, Spain, (4)National Oceanography Centre, Southampton, United Kingdom, (5)DTU Space, Lyngby, Denmark, (6)DTU-SPACE, Kgs. Lyngby, Denmark, (7)DTU Space, National Space Institute, Technical University of Denmark, Lyngby, Denmark, (8)University of Bonn, Bonn, Germany, (9)Aresys srl, MILANO, Italy, (10)Noveltis, Labège, France, (11)Technical University of Munich, Munich, Germany, (12)Along-Track S.A.S., Plougonvelin, France, (13)AltiHydroLab.fr, Sainte-Foy-lès-Lyon, France, (14)Research Institute for Geo-Hydrological Protection National Research Council CNR, Perugia, Italy, (15)Consiglio Nazionale Delle Ricerch, Pisa, Italy, (16)Consiglio Nazionale delle Ricerche - Istituto di Scienze Polari, Venice, Italy, (17)Technical University of Denmark, Department of Environmental Engineering, Copenhagen, Denmark, (18)Fac. Ciencias Univ. Porto, Porto, Portugal, (19)Fac. de Ciencias Univ. Porto, Porto, Portugal, (20)Delft University of Technology, Delft, Netherlands, (21)Delft University of Technology, Space Engineering, Delft, Netherlands, (22)University of Cadiz, Cadiz, Spain, (23)Maynooth University, Maynooth, Ireland, (24)European Space Agency, Frascati, Italy, (25)European Space Agency (ESA-ESRIN), Earth Observation Programmes, Frascati, Italy
Abstract:
Introduction

The junction between the coastal zone and inland water provides a challenge to researchers as it represents a boundary between different science domains (hydrology and oceanography), and different satellite measurement regimes. It is also a region of high variability in small spatial and temporal scales, pushing to the limit the ability of satellite data in terms of sampling and providing accurate measurements

HYDROCOASTAL is a two year project funded by ESA focussed on this problem, with the objective to maximise exploitation of SAR and SARin altimeter measurements in the coastal zone and inland water, by evaluating and implementing new approaches to process SAR and SARin data from CryoSat-2, and SAR altimeter data from Sentinel-3A and Sentinel-3B. Optical data from Sentinel-2 MSI and Sentinel-3 OLCI instruments will also be used in generating River Discharge products.

New SAR and SARin processing algorithms for the coastal zone and inland water will be developed and implemented and evaluated through an initial Test Data Set for selected regions. From the results of this evaluation a processing scheme will be implemented to generate global coastal zone and river discharge data sets.

A series of case studies will assess these products in terms of their scientific impacts.

All the produced data sets will be available on request to external researchers, and full descriptions of the processing algorithms will be provided

Project Outline

There are four tasks to the project

  • Review the current state of the art in SAR and SARin altimeter data processing as applied to the coastal zone and to inland water
  • New processing algorithms with be implemented to generate a Test Data sets, which will be validated against models, in-situ data, and other satellite data sets. Selected algorithms will then be used to generate global coastal zone and river discharge data sets
  • The impact of these global products will be assess in a series of Case Studies
  • Scientific Roadmap: Recommendations for development of future missions and future research

Presentation

The presentation will provide an overview to the project, present the different SAR altimeter processing algorithms that are being evaluated in the first phase of the project, and early results from the evaluation of the initial test data set.

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