| Arctic-North Atlantic High Resolution Model |
| Ayan Chaudhuri | |
| Avijit Gangopadhyay | |
| Enrique Curchitser | |
| Julia Levin | |
| Dale Haidvogel | |
| Arctic-North Atlantic High Resolution Model |
| The model is implemented using a 1/8o ROMS model. 50 vertical levels. | |
| Grid size [1258 x 780 x 50] | |
| Arctic-North Atlantic High Resolution Model |
| Proposed Simulations | |
| - Model-spin up: 1985 -1989 | |
| - Hindcast simulation: 1990 - 2007 | |
| - Forecast simulation: 2008 - 2028 | |
| Initial field | |
| - SODA fields (u,v,t,s,ssh) from 1st 1985 January | |
| Arctic-North Atlantic High Resolution Model |
| Forcing | |
| - COREv2 fields (winds, heat flux, specific humidity, surface air pressure, air temperature, precipitation and river runoff) | |
| - Fields available from 1958-2007 | |
| - Issue with leap years (has 365 days all years) | |
| - Time-series off by 12 days due to 12 leap years | |
| * Fixed leap year issue | |
| * Made CORE fields ROMS compatible | |
| Arctic-North Atlantic High Resolution Model |
| Boundary Conditions (SODA) | |
| - Western boundary closed | |
| - Southern boundary open | |
| - Eastern and Northern boundary (either open or closed and replaced with point sources at Mediterranean and Bering Strait). Discussion? | |
| Arctic-North Atlantic High Resolution Model |
| Simulation Log | |
| - Difficult to test the model with the high resolution set-up due to size. | |
| - JuliaÕs low resolution model used to test NASA cluster, ROMS code and CORE forcing. | |
| Low-Res climatology run | |
| Low-Res climatology run with sea-ice | |
| Low-Res interannual run | |
| Low-Res interannual run with sea-ice | |
| ? High-Res interannual run starting from 1985 with sea-ice | |
| Slide 7 |
| Arctic-North Atlantic High Resolution Model |
| High-Res Simulation | |
| - crashes after 1st time step | |
| - Netcdf writing issue (has a limit of 2GB on 32-bit and 4GB on 64-bit) | |
| - We have to be judicious about what variables to write | |
| - Storage intervals (save 1-day, 3-day or 5-day output?) | |
| * Debugging is ongoing | |
| Slide 9 |