Abstract's details
ALBATROSS: Improving the bathymetry and ocean tide knowledge in the Southern Ocean with satellite observations
CoAuthors
Event: 2023 Ocean Surface Topography Science Team Meeting
Session: Tides, internal tides and high-frequency processes (ROUND TABLE)
Presentation type: Type Poster
Contribution: PDF file
Abstract:
Knowledge of bathymetry and ocean tides plays a pivotal role at the crossroads of various scientific fields, especially in the Polar regions. Its significance extends to ocean circulation modelling and the understanding of the coupled dynamical response of the ocean, sea ice and ice-shelf systems. Moreover, it deeply influences the quality and accuracy of sea surface height and sea ice parameter estimates from satellite altimetry, as well as the comprehension of ice-shelf dynamics. In isolated regions like the Southern Ocean, satellite observations bring invaluable information with the measured physical parameters or by considering the strong links between parameters’ characteristics and the ocean processes.
The ALBATROSS project (ALtimetry for BAthymetry and Tide Retrievals for the Southern Ocean, Sea ice and ice Shelves), led by NOVELTIS in collaboration with DTU Space, NPI and UCL, is funded by ESA in the frame of the Polar Science Cluster in the EO4Society Programme, which fosters collaborative research and interdisciplinary networking within polar Earth Observation.
ALBATROSS objectives are: First, to improve knowledge on bathymetry around Antarctica by considering decade-long reprocessed CryoSat-2 datasets, innovative information on bathymetry gradient location through the analysis of sea ice surface roughness characteristics, and the compilation of the best available bathymetry, ice draft, coastline and grounding line datasets in ice-shelf regions. Second, to enhance knowledge on ocean tides in the Southern Ocean through the implementation of a high-resolution hydrodynamic model, based on the most advanced developments in ocean tide modelling. This includes data assimilation of satellite-altimetry tidal retrievals computed from the most recent and relevant satellite altimetry products, to fill the gap between the 66°S-limited coverage of the Topex-Jason suite missions and the Antarctica coast.
This presentation will discuss the main promising project’s outcomes.
The ALBATROSS project (ALtimetry for BAthymetry and Tide Retrievals for the Southern Ocean, Sea ice and ice Shelves), led by NOVELTIS in collaboration with DTU Space, NPI and UCL, is funded by ESA in the frame of the Polar Science Cluster in the EO4Society Programme, which fosters collaborative research and interdisciplinary networking within polar Earth Observation.
ALBATROSS objectives are: First, to improve knowledge on bathymetry around Antarctica by considering decade-long reprocessed CryoSat-2 datasets, innovative information on bathymetry gradient location through the analysis of sea ice surface roughness characteristics, and the compilation of the best available bathymetry, ice draft, coastline and grounding line datasets in ice-shelf regions. Second, to enhance knowledge on ocean tides in the Southern Ocean through the implementation of a high-resolution hydrodynamic model, based on the most advanced developments in ocean tide modelling. This includes data assimilation of satellite-altimetry tidal retrievals computed from the most recent and relevant satellite altimetry products, to fill the gap between the 66°S-limited coverage of the Topex-Jason suite missions and the Antarctica coast.
This presentation will discuss the main promising project’s outcomes.