# Copernicus Marine Global Ocean L3 spectral wave parameters
*data products*

## Specifications
- **level**: L3
- **distributor**: copernicus-marine-service
- **access endpoint**: https://data.marine.copernicus.eu/product/WAVE_GLO_PHY_SPC_L3_NRT_014_009
- **access model**: open
- **primary data portal url**: https://data.marine.copernicus.eu/product/WAVE_GLO_PHY_SPC_L3_NRT_014_009
- **use cases**: ["Satellite wave spectra","Significant wave height","Wave direction and period"]
- **deployment context**: orbital
- **entity type**: data_product
- **last verified date**: 2026-06-11
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: copernicus-marine-service
- **attributes**: {"level":"L3","distributor":"copernicus-marine-service","access_endpoint":"https://data.marine.copernicus.eu/product/WAVE_GLO_PHY_SPC_L3_NRT_014_009","access_model":"open","primary_data_portal_url":"https://data.marine.copernicus.eu/product/WAVE_GLO_PHY_SPC_L3_NRT_014_009","use_cases":"[\"Satellite wave spectra\",\"Significant wave height\",\"Wave direction and period\"]","deployment_context":"orbital"}
- **relevance**: in-scope

## Editorial
The Copernicus Marine Global Ocean L3 Spectral Wave Parameters product (ID WAVE_GLO_PHY_SPC_L3_NRT_014_009) provides along-track L3 wave spectral parameters derived from the CFOSAT (China-France Oceanography SATellite) mission and distributed by the Copernicus Marine Service.[^cmems-wave-product-page]

CFOSAT carries the SWIM (Surface Waves Investigation and Monitoring) instrument, a rotating-beam wave scatterometer that measures directional ocean wave spectra directly. The L3 product delivers per-orbit, geolocated spectral parameters including significant wave height, wave period at variance spectral-density maximum, wave direction at variance spectral-density maximum, and wave spectrum, covering the global ocean on the satellite track.[^cmems-wave-product-page]

CFOSAT is the sole source mission for this product. The data are provided in near-real-time (NRT) cadence and distributed open access through the CMEMS data portal under the Copernicus Marine licence.[^cmems-wave-product-page]

## Compositional position
- sea-state (topics) --[topic_capabilities]--> Copernicus Marine Global Ocean L3 spectral wave parameters

## Sources
- [cmems-wave-product-page] | Global Ocean L3 Spectral Parameters From NRT Satellite Measurements - WAVE_GLO_PHY_SPC_L3_NRT_014_009 | https://data.marine.copernicus.eu/product/WAVE_GLO_PHY_SPC_L3_NRT_014_009/description | tier=agency-doc | accessed=2026-06-11

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Source: https://eo-atlas.org/data_products/copernicus-marine-wave-spectra-l3
Maintainer: SpectraWorks B.V. (CC-BY 4.0)