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CP4O CCN Activities

Additional CP4O activities have been supported under three Contract Change Notices carried out between 2015 and 2019.

CP4O CCN01

Further work was needed to complete the development of some products and algorithms initiated in the main CP4O contract, in the area of coastal and polar applications and in the refinement of the SAR altimeter echo model that forms the basis of the re-tracker solution applied in the Sentinel-3 ground segment.

This work was carried out under the four Work Packages listed below, and  completed in May 2016:

A full description of the work is available in the CCN01 proposal

A full description of the work carried out is available in the  CP4O CCN01 Final Report



Work Package

Led By

Started

Ends

Report

WP1000

SARin for Coastal Altimetry, Improved SARin processing for Test Data Set Generation.

isardSAT

April 2015

July 2015

Available here

WP2000

Implementation of a Regional Tidal Atlas for the Arctic Ocean.

Noveltis

Jan 2015

Dec 2015

Available here

WP3000

Improvements to the SAMOSA re-tracker implementation and Evaluation- Optimised Thermal Noise Estimation.

STARLAB

Jan 2015

Dec 2015

Tech Notes on SAMOSA Model Development, and on Validation

WP4000

Extended evaluation of CryoSat-2 SAR data for Coastal Applications

NOC

April 2015

Dec 2015

Available here


CP4O CCN1 Final Meeting and Presentation: ESA/ESRIN Thursday 10th December

A final meeting and open presentation of results was held at ESA/ESRIN, Frascati, on Thursday 10th December. Links to the agenda and presentations are listed below:

Final Results Presentation: Agenda

Presentations:

1. CP4O Scientific Roadmap and CCN Activities (SatOC)

2. Cryosat Mission and Processing Update (ESA)

3. SARin (and beyond) for the Coastal Ocean (isardSAT)

4. Using Cryosat data to implement an Arctic Tidal Atlas (Noveltis)

5. Improvements to the SAMOSA SAR Altimeter Re-tracker (Starlab)

6. Evaluation of the (improved) SAMOSA SAR Re-tracker data (SatOC)

7. Extended Evaluation of SAR Altimeter Data at the Coast (NOC)


CP4O CCN02/03 - Improvement of the Arctic Ocean Bathymetry and Regional Tidal Atlas

The Arctic Ocean is a challenging region for tidal modelling, because of its complex and poorly documented bathymetry, combined together with the intermittent presence of sea ice.

In addition, at such high latitude, in-situ tidal observations are scarce and often not representative of the open ocean tide.

The accuracy of the global tidal models thus decreases by several centimetres in Polar Regions, compared to other regions in the world characterized by a strong tidal signal. This has a large impact on the quality of the altimetry sea surface heights at high latitudes.

The activities under these CCNs included

  • Assessment of the latest available Arctic bathymetry datasets
  • Generate an improved Arctic bathymetry by inverting the high resolution DTU15 gravity field derived from Cryosat-2 data, and combining with the selected bathymetry
  • Evaluate the new bathymetry through comparisons against available reference data, and assessments with the TUGO hydrodynamic model.
  • Using tidal constituents (with associated error estimates) derived from Cryosat-2 data, together with the TUGO hydrodynamic model, develop and evaluate a new regional Arctic Tidal model for the Arctic Ocean

A full description of the work is available in the CCN02 Final Report

An ESA Web Story describing this work is available at this link



Satellite Oceanographic Consultants Ltd 2019