Improved Tidal Dynamics and Uncertainty Estimation for Satellite Gravimetry (TIDUS-2)

• Applicants: Dr.-Ing. Denise Dettmering; Professor Dr. Maik Thomas
• Subject Area: Geodesy, Photogrammetry, Remote Sensing, Geoinformatics, Cartography
• Term: since 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 388296632

In continuation of the first phase, this project will synthesize a new global tidal atlas that is based on empirical EOT results for partial tides with a high signal-to-noise ratio well resolvable from satellite altimetry, and explicit representations of all other relevant ocean tides including over- and compound tides from the unconstrained numerical ocean model TiME. This will require refinements of the EOT estimation strategy (e.g., estimation of smaller constituents, regionally densified grids in coastal areas, consideration of effects from internal tides, extension to polar regions) and also further developments of the TiME forward model (e.g., energy dissipation processes in shallow water, inherent nesting). IP1 will also revise the modelling of the ocean load tides by considering anelastic effects in both mantle and crust.

• DFG Programme: Research Units
• Subproject of: FOR 2736: New Refined Observations of Climate Change from Spaceborne Gravity Missions (NEROGRAV)
• International Connection: Netherlands, Norway
• Co-Investigator: Professor Dr.-Ing. Florian Seitz
• Cooperation Partners: Dr. Björn Backeberg; Professor Dr. Malte Müller; Professor Dr. Martin Verlaan