![COPERNICUS/MARINE/WAV/ANFC_0_083DEG_PT3H](https://developers.google.com/earth-engine/datasets/images/COPERNICUS/COPERNICUS_MARINE_WAV_ANFC_0_083DEG_PT3H_sample.png) Dataset Availability : 2022-06-01T00:00:00Z--2026-11-23T00:00:00Z Dataset Producer : [Copernicus Marine Service Global Ocean Waves and Forecasts](https://data.marine.copernicus.eu/product/GLOBAL_ANALYSISFORECAST_WAV_001_027/description) Cadence : 3 Hours Tags : [copernicus](https://developers.google.com/earth-engine/datasets/tags/copernicus.md.txt) [forecast](https://developers.google.com/earth-engine/datasets/tags/forecast.md.txt) [hourly](https://developers.google.com/earth-engine/datasets/tags/hourly.md.txt) [oceans](https://developers.google.com/earth-engine/datasets/tags/oceans.md.txt) #### Description The operational global ocean analysis and forecast system of Meteo-France with a resolution of 1/12 degree is providing daily analyses and 10 days forecasts for the global ocean sea surface waves. This product includes 3-hourly instantaneous fields of integrated wave parameters from the total spectrum (significant height, period, direction, Stokes drift,...etc), as well as the following partitions: the wind wave, the primary and secondary swell waves. The global wave system of Meteo-France is based on the wave model MFWAM which is a third generation wave model. MFWAM uses the computing code ECWAM-IFS-38R2 with dissipation terms developed by Ardhuin et al. (2010). The model MFWAM was upgraded on November 2014 thanks to improvements obtained from the European research project 'my wave' ,(Janssen et al. 2014). The model mean bathymetry is generated by using 2-minute gridded global topography data ETOPO2/NOAA. Native model grid is irregular with decreasing distance in the latitudinal direction close to the poles. At the equator the distance in the latitudinal direction is more or less fixed with grid size 1/10 degrees. The operational model MFWAM is driven by 6-hourly analysis and 3-hourly forecasted winds from the IFS-ECMWF atmospheric system. The wave spectrum is discretized in 24 directions and 30 frequencies starting from 0.035 Hz to 0.58 Hz. The model MFWAM uses the assimilation of altimeters with a time step of 6 hours. The global wave system provides analysis 4 times a day, and a forecast of 10 days at 0:00 UTC. The wave model MFWAM uses the partitioning to split the swell spectrum in primary and secondary swells. GLOBAL_ANALYSISFORECAST_WAV_001_027, implemented by Mercator Ocean International. It provides a comprehensive overview of the global ocean wave analysis and forecasting system produced by Meteo-France. The system delivers aggregated analyses and a 10-day forecast, updated twice-daily, including various integrated wave parameters such as significant wave height, period, direction, and Stokes drift for both the total wave spectrum and partitioned waves (wind wave, primary and secondary swell). ### Bands **Bands** Pixel size: 9276.62 meters (all bands) | Name | Units | Pixel Size | Description | |---|---|---|---| | `VHM0` | m | 9276.62 meters | Spectral significant wave height | | `VHM0_WW` | m | 9276.62 meters | Significant wave height of wind sea | | `VTM01_SW1` | seconds | 9276.62 meters | Spectral moments (0,1) wave period of primary swell | | `VTM01_SW2` | seconds | 9276.62 meters | Spectral moments (0,1) wave period of secondary swell | | `VTM10` | seconds | 9276.62 meters | Spectral moments (-1,0) wave period | | `VHM0_SW1` | m | 9276.62 meters | Significant wave height of primary swell | | `VHM0_SW2` | m | 9276.62 meters | Significant wave height of secondary swell | | `VTPK` | seconds | 9276.62 meters | Wave period at spectral peak | | `VSDX` | m/s | 9276.62 meters | Stokes drift U component | | `VSDY` | m/s | 9276.62 meters | Stokes drift V component | | `VCMX` | m | 9276.62 meters | Maximum crest trough wave height | | `VTM02` | seconds | 9276.62 meters | Spectral moments (0,2) wave period | | `VTM01_WW` | seconds | 9276.62 meters | Spectral moments (0,1) wave period of wind sea | | `VMDR_WW` | deg | 9276.62 meters | Mean wave direction of wind sea | | `VMDR_SW1` | deg | 9276.62 meters | Mean wave direction of primary swell | | `VMDR_SW2` | deg | 9276.62 meters | Mean wave direction of secondary swell | | `VMDR` | deg | 9276.62 meters | Mean wave direction | | `VPED` | deg | 9276.62 meters | Peak wave direction | | `VMXL` | m | 9276.62 meters | Height of the highest crest | ### Image Properties **Image Properties** | Name | Type | Description | |---|---|---| | forecast_hours | DOUBLE | For observations in the future, the number of hours between the observation and run times. | | observation_time | DOUBLE | The valid time of the observation, in milliseconds. | | observation_type | STRING | Observation type: - **forecast**: Future model prediction (includes same day forecasts as well) - **hindcast**: Past model reconstruction | | run_time | DOUBLE | The time the observation was produced, in milliseconds. | ### Terms of Use **Terms of Use** This dataset is released for use under Service Level Agreement (SLA), using the acronym "CMEMS" or the shortened name "Copernicus Marine Service" both denote the E.U. Copernicus Marine Environment Monitoring Service. Highlights and key features of the licence are provided in this document [License](https://marine.copernicus.eu/user-corner/service-commitments-and-licence) ### Citations Citations: - E.U. Copernicus Marine Service Information (2024). Global Ocean Waves Analysis and Forecast. [doi.org/10.48670/moi-00017](https://doi.org/10.48670/moi-00017) ### Explore with Earth Engine > [!NOTE] > **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine) ### Code Editor (JavaScript) ```javascript var dataset = ee.ImageCollection("COPERNICUS/MARINE/WAV/ANFC_0_083DEG_PT3H") .filter(ee.Filter.date('2024-07-01', '2024-07-15')); var significantWaveHeight = dataset.select('VHM0'); var significantWaveHeightVis = { min: 0, max: 10, palette: ['0000ff', '00ffff', 'ffff00', 'ff0000', 'ffffff'], }; Map.setCenter(-140.5, 52.2, 1); Map.addLayer(significantWaveHeight, significantWaveHeightVis, 'Significant Wave Height'); ``` [Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/COPERNICUS/COPERNICUS_MARINE_WAV_ANFC_0_083DEG_PT3H) [Global Ocean Waves Analysis and Forecast](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_MARINE_WAV_ANFC_0_083DEG_PT3H.md.txt) The operational global ocean analysis and forecast system of Meteo-France with a resolution of 1/12 degree is providing daily analyses and 10 days forecasts for the global ocean sea surface waves. This product includes 3-hourly instantaneous fields of integrated wave parameters from the total spectrum (significant height, period, direction, Stokes ... COPERNICUS/MARINE/WAV/ANFC_0_083DEG_PT3H, copernicus,forecast,hourly,oceans 2022-06-01T00:00:00Z/2026-11-23T00:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets - [](https://doi.org/https://data.marine.copernicus.eu/product/GLOBAL_ANALYSISFORECAST_WAV_001_027/description) - [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_MARINE_WAV_ANFC_0_083DEG_PT3H)