Frajka-WilliamsSynopsis
Our overarching motivation is to understand how the small-scale processes at topographic sills and constrictions relate to the wider context of the North Atlantic; specifically, in the region of Denmark Strait (DS), how small-scale (turbulence, submesoscale and mesoscale) derived from flow over topography influences the watermass transformation along the east Greenland margin. We additionally speculate that the strongly mesoscale and potentially submesoscale dynamics in the overflow region contribute to sediment transport and seabed evolution in the region. In order to address these hypotheses, MIXSED will achieve the following specific
Objectives
O1: Diagnose the mesoscale/submesoscale dynamics in the vicinity of strongly sheared flows and complex topography.
O2: Characterise particles transported and the capacity of the DSO to shape the seafloor, in the context of the intensity of flows and physical mixing processes.
O3: Evaluate the potential for two-way flow-topography interactions in the region of DSO, conceptually and, where possible, practically. The proposed observational program will additionally.
Funding
Eleanor Frajka-Williams
Professor of Ocean Dynamics in a Changing Climate
I am a physical oceanographer who uses ocean observations to investigate ocean dynamics and circulation in a changing climate. I have a particular interest in problems spanning scales (from micro- to large-scale) or spheres (biogeosphere, cryosphere, atmosphere), and in methods that leverage traditional observations with new platforms and satellite data.
Joel Bracamontes Ramírez
Research Scientist (TERIFIC, MIXSED)
Posts
The AEI-DFG DS-MIXSED project (Denmark Strait - Mixing and Sediment Dynamics) will be starting in 2025 with collaborators David Amblas, Anna Sanchez, Wilken-Jon von Appen and Lola Perez Hernandez. This is a 3-year project to study mixing in the Denmark Strait overflow waters downstream of Denmark Strait, and the influence of currents on seabed morphology (and vice versa). More information will be forthcoming in the new year.
