GODAE is sponsored by
The CSS projects
Arctic and Nordic Seas
P19 - DAMOCLES (Developing Arctic Modelling and Observing Capabilities for Long-term Studies)
Domain
The model covers the Fram Strait with 2 km resolution (conformal mapping grid) Approximately from 75N to 85N and from 20 W to 20E.
Objectives
Real-time monitoring and prediction system, hindcast studies, research
The objective is to forecast the complex mesoscale currents and sea-ice conditions in the Fram Strait and to provide input data to an acoustic tomography inversion system.
Customers:
Research, society at large.
Funding aspects:
This project is supported by the DAMOCLES IP of the European Commission (FP6), matching funds by the Research Council of Norway and additional industry projects.
Downscaling strategy
One-way and off-line nesting offer sufficient flexibility for operating the nested model.
HYCOM-to-HYCOM downscaling, the outer model is TOPAZ. The downscaling method is from that of Browning and Kreiss (1982, 1986) with bilinear interpolation to the nested rotated horizontal grid. The ice parameters are also nested. The frequency of nesting conditions is 6-hourly. Astronomical tides are added The monitoring and prediction system is driven by external inputs, atmospheric forcing fields from ECMWF.
| Why does this project need large-scale estimates? | The Fram Strait is the main connection between the Nordic Seas and the Actic and the fluxes are mainly controlled by the West Spitzberg and East Greeland currents. High quality lateral boundary conditions of ocean and sea-ice parameters are absolutely vital. |
| Strategy for validation of boundary conditions? | The incoming fluxes, kinetic energy, sea ice and water mass properties are monitored in the nested model and compared to available observations and to the outer model. |
| What particular GODAE estimates does this project use, how often, etc.? | The project uses TOPAZ boundary conditions for 3D ocean parameters and sea-ice. The frequency of nesting files is 6-hours. Tides are included. |
| Through which Modelling/Assimilation Center? | The Mohn-Sverdrup Center at the Nansen Center, Bergen. |
Project status
The model is in development phase.
Web: http://msc.nersc.no/
(Last Updated: 17-01-2008)