Catalogue Shom
water level
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The Shom uses a 2D barotropic version of the HYCOM code (https://hycom.org/) to compute water level /surge forecasts (astronomical tides and meteorological surges) for the Atlantic, Mediterranean, Antilles-Guyane and Indian Ocean domains. The configurations use curvilinear grid with resolutions of several km offshore and ranging from 1.5km to around 500m on the french mainland coasts and the Antilles-Guyana coast. A downscaling by nesting allows a resolution of 800m to 200m over the Indian domain. These models have been adapted by the Shom to be operable in coastal areas by taking into account, in particular, the tide and high resolution bathymetry in these areas (from 100m for DTMs of facade to 20m for coastal DTMs) using Litto3D surveys by airborne LIDAR. The models are operated by Météo-France and the Shom in the framework of the HOMONIM project for the coastal flood/wave warning system.
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<em>Hydrodynamic HYCOM 3D data updated on: 22-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « 3D daily mean hydrodynamic » data represent the situation in terms of temperature, salinity, speed and direction of currents, over 50 immersions (including the surface level), averaged over the day. These forecasts do not provide information on phenomena inducing evolution during the day (e.g. tide, diurnal warming, ...).<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 22-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « 3D daily mean hydrodynamic » data represent the situation in terms of temperature, salinity, speed and direction of currents, over 50 immersions (including the surface level), averaged over the day. These forecasts do not provide information on phenomena inducing evolution during the day (e.g. tide, diurnal warming, ...).<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 22-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />
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<em>Hydrodynamic HYCOM 3D data updated on: 20-08-2025T00:00Z</em><br /> <br />This product contains the Hydrodynamic forecasts, calculated using the HYCOM 3D model implemented by the Shom at the regional scales (Atlantic Ocean, Mediterrannnean sea). The « Hourly surface hydrodynamics » data represent the instantaneous situation in temperature, salinity, speed and direction of currents, as hourly extracted from the surface layer of the 3D model forecasts.<br /> <br /><em>More information (in French): <a href="https://services.data.shom.fr/static/specifications/Descriptif_Contenu_oceano_hydrodynamique.pdf" title="access to product user manual (in french)" target="_new">product user manual</a></em><br />