Background
Model, data, and statistical methods
Buoys
Satellite data
Results
Model vs. buoys - on-line validation
A simple, non-quality checked, data display
Most recent data
Previous month
Two months back
Wave spectra
A simple, non-quality checked, forecast data display
1-d spectra
2-d spectra
Model vs. buoys - 6-monthly validation
Detailed comparison of 6 months of buoy data and operational forecasts
of significant wave height. The general wave height forecast quality is
evaluated for each buoy. The wave height during the 5 most severe storm events is studied separately.
Stations are intercompared, and the dependency of the wave height forecast
quality on both forecast range and observed
wave height is calculated.
The quality Q is based on the 5 highest events at a fixed, small subset of wave buoys.
Previous half-year
Previous 4 years, compared
Highest waves
Model vs. buoys - monthly
Jcomm (Joint WMO-IOC Technical Commission for Oceanography and Marine Meteorology)
carries out an automatised, global comparative wave model verification.
DMI takes part in this project, and submits wave forecasts for a number
of buoys to ECMWF once every month. Please refer to
Jcomm verifikation - rapport
Jcomm verifikation - grafik
for a project description. Scroll to "Automatic Documents" for monthly reports.
Model vs. satellite altimetry
Comparison of 6 months of satellite altimetry based and operational forecasts
of significant wave height. The forecast error is
mapped for the Northwest European Shelf Seas, and mean errors are calculated as a function
of wave height, forecast range, and time of year.
Previous half-year
Previous 3 years, compared
Test - new depth maps
The impact of updated depth maps, with ETOPO1 / ETOPOP2 replacing ETOPO5 as data source,
is studied in a hindcast simulation of 2010, jan-jun.
Previous half-year
Highest waves
Test model vs. buoys - current refraction.
The refractive effect of time-dependent current,
as calculated by the DMI operational ocean hydrodynamical ocean models, is included.
Previous half-year
Highest waves
Test/opr model intercomparison
Frequency spectral range test
Attempt to entend the high-frequency range of the modelled spectrum.
Test/opr intercomparison
Previous studies
Validation reports since 2001
Case Studies
Comparison with buoy data
Wave forecasts at wind mill parks, primo 2009
Comparison of 3 different WAM version in the shallows of wind mill park sites for a 1½ month period.
Wave forecasts off Ireland, ult. 2003
Preliminary study of forecasts for 3 Irish buoys during a 3-week period.
North Baltic Proper, jan. 2005
Hurricane over the Baltic, with exceptionally high waves.
Comparison with satellite altimetry data
North Sea - Baltic, med. 2004 - mar. 2005
Sea state as measured from satellite is described and compared with
wave model forecast. The model error (bias, stdev, scatter index) is mapped
for all European waters excluding the Mediterranean. The area-averaged model error
is given as a function of time, forecast range, and wave height.
Yellow Sea , medio-ultimo 2008
Same, for Chinese and Korean waters.
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Yellow Sea , medio-ultimo 2008
Same, for Chinese and Korean waters. Extended model area.
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Yellow Sea , primo-medio 2009
Same, for the Red Sea.
South China Sea , primo-medio 2009
Same, for the South China Sea.
