North Water
NOWice.mov, Annual cycle of North Water sea ice cover.
NOWocean.mov, Annual cycle of North Water upper ocean.
NOWecmwf.mov, Annual cycle of ECMWF atmospheric forcing over North Water.
NOWcurr.mov, Annual cycle of ocean currents at several depths in Smith Sound. (Areas of downwelling are grey-shaded.)
hydro.slice.mov, cross sections of modeled hydrography corresponding with moored buoy locations for the active lateral BC case. hydro.1yr.mov, a side-by-side comparison of the active (left) and passive (right) lateral BC cases (both for year 51 of a perpetual 1990 simulation). hydro.50yr.mov, a month-by-month movie of cross sections during the 50-yr spinup.
Arctic Region
IceAge.mov, 20 year simulation of Arctic sea ice categorized into FY, MY, and Ridged Ice, using POLES sea ice model forcing data 1979-1998, for cases with (ASSIM) and without (BASE) assimilation of Optimally Interpolated Sea Ice Motion Data.
Another 20 year simulation with no lateral melting of sea ice in the model.
Summer1990.mov, ice area, ice divergence, and ice motion for model year 1990 of the 20 year simulation above.
Summer1994.mov, ice area, ice divergence, and ice motion for model year 1994 of the 20 year simulation above.
Summer1998.mov, ice area, ice divergence, and ice motion for model year 1998 of the 20 year simulation above.
1998 Arctic Runs
A simulation for 1998 using POLES forcing and gridded ice motion vectors.
Here are just the weekly mean vectors (observed, no assim, and assim case), and the gridded motion product (weekly means, from NSIDC). Another case with no lateral ice melt.
Another 1998 simulation using TOVS forcing. A TOVS run without lateral melting.
Power-point presentations from the Environment Canada workshop on Data Assimilation in Sea Ice Models March 23-24 2004 (Montreal). My work on data assimilation, and a commentary on the level of complexity needed for data assimilation in models.
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Canadian Coast Guard Ice Breaker Des Groselliers and experimental equipment, SHEBA field camp, Beaufort Sea, July 8, 1998. (photo by T. Arbetter)