AOD1B - GRACE Atmosphere and Ocean De-Aliasing Level 1B Product
AOD1B is the Atmosphere-Ocean Dealising Product used for the correction of the GRACE/GRACE-FO satellite gravity mission results for high-frequency variability. The figure shows ocean bottom pressure variablity during 30 days. (Section 1.3, GFZ)
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The Atmosphere and Ocean De-Aliasing Level-1B (AOD1B) Product provides a priori information about temporal variations in the Earth's gravity field due to global mass variability in the Atmosphere and ocean. It is based on analysis and forecast data of the operational high-resolution global numerical weather prediction (NWP) model of the European Centre for Medium-Range Weather Forecasts (ECMWF), and ocean bottom pressure from an unconstrained simulation with a global ocean general circulation model that is consistently forced with ECMWF Atmospheric data (ECMWF = European Centre for Medium-Range Weather Forecasts).