The multigrid production uses the multi-grid spectral wave model WAVEWATCH III® version 4.15, with operational NCEP winds and ice fields as input forcing fields. No wave data assimilation is performed. The model is run four times a day, with all available data.
The wave model suite consists of 9 rectilinear global and regional nested grids. These grids were developed using ETOPO-1 bathymetry (Amante and Eakins, 2009), together with v1.10 of the Global Self-Consistent Hierarchical High Resolution Shoreline (GSHHS) Database. The higher-resolution grids have been masked to improve model efficiency, and only provide data near shore. See Chawla and Tolman (2007,2008) for details on the software used for developing these grids.
(click for map)
|Global 30 min||glo_30m||720||336||1/2||1/2||0||-77.5|
|Arctic Ocean 30 min||ao_30m||720||51||1/2||1/2||0||65.0|
|NW Atlantic 10 min||at_10m||301||331||1/6||1/6||260||0.0|
|US West Coast 10 min||wc_10m||241||151||1/6||1/6||210||25|
|East Pacific 10 min||ep_10m||511||301||1/6||1/6||130||-20|
|Alaskan 10 min||ak_10m||401||187||1.5/6||1/6||140||44|
|Gulf of Mexico and NW Atlantic 4 min||at_4m||586||481||1/15||1/15||261||15|
|US West Coast 4 min||wc_4m||736||526||1/15||1/15||195||15|
|Alaskan 4 min||ak_4m||548||391||2/15||1/15||165||48|
Validation data is available from July 2013 through to the present.