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- W4289201468 abstract "Abstract. Oceanic tides are seldom represented in Earth System Models (ESMs) owing to the need for high horizontal resolution to accurately represent the associated barotropic waves close to coasts. This paper presents results of tides implemented in the Model for Prediction Across Scales–Ocean or MPAS-Ocean, which is the ocean component within the US Department of Energy developed Energy Exascale Earth System Model (E3SM). MPAS-Ocean circumvents the limitation of low resolution using unstructured global meshing. We are at this stage simulating the largest semidiurnal (M2, S2, N2) and diurnal (K1, O1) tidal constituents in a single layer version of MPAS-O. First, we show that the tidal constituents calculated using MPAS-Ocean closely agree with TPXO8 results when suitably tuned topographic wave drag and bottom drag coefficients are employed. Thereafter, we present the sensitivity of global tidal evolution due to the presence of Antarctic ice shelf cavities. The effect of ice shelves on the amplitude and phase of tidal constituents are presented. Lower values of complex errors (with respect to TPX08 results) for the M2 tidal constituents are observed when ice shelf is added in the simulations, with particularly strong improvement in the Southern Ocean. Our work points towards future research with varying Antarctic ice shelf geometries and sea ice coupling that might lead to better comparison and prediction of tides, and thus better prediction of sea-level rise and also the future climate variability." @default.
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- W4289201468 date "2022-08-01" @default.
- W4289201468 modified "2023-09-27" @default.
- W4289201468 title "Barotropic Tides in MPAS-Ocean: Impact of Ice Shelf Cavities" @default.
- W4289201468 doi "https://doi.org/10.5194/gmd-2022-188" @default.
- W4289201468 hasPublicationYear "2022" @default.
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