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Showing 1 to 3 of 3 for “"Geophysical Fluids"”.
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Applied math in geophysical fluids : partially trapped wave problems and mining plumes
The first portion of this work focuses on leaky modes in the atmospheric sciences. Leaky modes (related to quasi-modes, scattering resonances, and the singularity expansion method) are discrete, oscillatory and decaying modes that arise in conservative systems where waves are partially trapped. By …
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NARCCAP Model Assessment and Future Projections For the Southeast United States
… outlier models included two RCMs run with the Geophysical Fluids Dynamics Lab (GFDL) as their lateral boundary conditions; these models suffered from a cold maximum temperature bias, attributed to erroneously high soil moisture. Precipitation skill showed mixed skill - relatively high when …
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Data-Driven Variational Multiscale Reduced Order Modeling of Turbulent Flows
In this dissertation, we consider two different strategies for improving the projection-based reduced order model (ROM) accuracy: (I) adding closure terms to the standard ROM; (II) using Lagrangian data to improve the ROM basis. Following strategy (I), we propose a new data-driven reduced order …