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WAVEWATCH III® 30-year Hindcast Phase 1


A 30-year wave climatology has been generated with the NOAA WAVEWATCH III® using the Tolman and Chalikov (1996) source term package, 17 regular lat-lon grids, and the NCEP Climate Forecast System Reanalysis and Reforecast (CFSRR) homogeneous dataset of hourly high-resolution winds. The time period covers from 1979 through 2009.

Data Set Access and Validation

Model Setup

The model was run with the Tolman and Chalikov (1996) source term package (ST2), capped friction velocity from Tolman and Chalikov input (FLX3), stability correction for ST2 enabled (STAB2).

Model Grid Descriptions

The wave model suite consists of global and regional nested grids, 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.

Note: Model was run using Arctic Ocean (ao_30m), Mid-Latitudes (mid_30m), and Antarctic Ocean (ac_30m) grids, but results are interpolated onto the Global (glo_30m) grid and not given on the other 30 min grids.

(click for map)
ID Nx Ny dx dy Lon0 Lat0
Global 30 minglo_30m 7203611/21/20-90.0
Arctic Ocean 30 minao_30m 720711/21/2055.0
Mid-latitudes 30 minmid_30m 7202611/21/20-65.0
Antarctic Ocean 30 minac_30m 720711/21/20-90.0
Gulf of Mexico and NW Atlantic 10 minecg_10m 3013311/61/62600.0
US West Coast 10 minwc_10m 2411511/61/621025
Pacific Islands 10 minpi_10m 5113011/61/6130-20
Alaskan 10 minak_10m 4011871/41/614044
North Sea Baltic 10 minnsb_10m 2371571/41/6-2842
Mediterranean 10 minmed_10m 3011091/61/6-730
North West Indian Ocean 10 minnwio_10m 2413071/61/630-20
Australia 10 minoz_10m 3613011/61/6105-50
Gulf of Mexico and NW Atlantic 4 minecg_4m 5864811/151/1526115
US West Coast 4 minwc_4m 7365261/151/1519515
Alaskan 4 minak_4m 5483912/151/1516548
North Sea Baltic 4 minnsb_4m 4433912/151/15-2842
Australia 4 minoz_4m 9017511/151/15105-50

Model input

Model output

Note: The original model results were lost due to a computer malfunction. Here we present what was able to be recovered from storage. There are no partition data for any of the time period. Grib and point output is available from 1979 through 2007, with limited grib data for 2008 and 2009.

These months only have grib files for ak_4m, ak_10m, glo_30m, med_10m, nsb_4m, nsb_10m, nwio_10m, oz_4m and oz_10m. We would like to acknowledge the assistance of Dr. Stephen Grey of HR Wallingford in the United Kingdom for the recovery of the partial data.

Technical notes

Help and hints

There is a problem extracting data from the Mediterranean GRiB files, where the longitude values are incorrect. Here is an example Python script to work around the problem.