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    Storm surge modelized by Hycom2D on the NE Atlantic Ocean and the North Sea, forced by the Arpege 10 meters winds and atmospheric pressure on the sea. The model grid is curvilinear with an horizontal resolution of around 1 km on the french coasts. 3 parameters are provided : the instantaneous storm surge (delivered every hour), the maximal storm surge during the 3 previous hours (delivered every 3 h) and the maximal storm surge during the 24 previous hours (delivered every 24 h). For the 0h production, the forecasts are provided until 102h ; for the 6h production, the forecasts are provided until 72h ; for the 12h production, the forecasts are provided until 84h ; for the 18h production, the forecasts are provided until 60h.

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    The Operational Geophysical Data Record (OGDR) is a near real-time operational product delivered to users within 3 - 5 hours from instrument sensing. The main geophysical parameters in the OGDR product, derived from the Poseidon altimeter on-board the Jason2 satellite, are significant wave height and ocean surface wind speed. Additionally, all necessary magnitudes contributing to the estimation of the sea surface height are provided as well, such altimeter ranges, orbit data (altitude), water vapour correction, geophysical corrections and geophysical references. Finally, other important parameters, intended to help with the interpretation and use of the data for different applications, are provided as well, such as for example backscatter coefficients and a range of instrument and processing quality flags. Both 1Hz and 20Hz sampling data are included. This product is mainly targeting operational weather and ocean forecasting applications. This data set is jointly generated by NOAA and EUMETSAT.

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    The SMVC12 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SM): Main synoptic hour (Remarks from Volume-C: SHIP)