Monthly time series of Water Discharge (Qw) [m3/s] from in situ and model data

Monthly time series of Total Phosphorous [mg/l] from model data

Monthly time series of Total Nitrogen [mg/l] from model data

Annual time series of Total Nitrogen/Nitrates [mg/l] from in situ and model data

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.

Annual time series of Total Phosphorous/Phosphates [mg/l] from in situ and model data