A multiscale climate emulator for long-term morphodynamics (MUSCLE-morpho) Public Deposited

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  • Interest in understanding long-term coastal morphodynamics has recently increased as climate change impacts become perceptible and accelerated. Multiscale, behavior-oriented and process-based models, or hybrids of the two, are typically applied with deterministic approaches which require considerable computational effort. In order to reduce the computational cost of modeling large spatial and temporal scales, input reduction and morphological acceleration techniques have been developed. Here we introduce a general framework for reducing dimensionality of wave-driver inputs to morphodynamic models. The proposed framework seeks to account for dependencies with global atmospheric circulation fields and deals simultaneously with seasonality, interannual variability, long-term trends, and autocorrelation of wave height, wave period, and wave direction. The model is also able to reproduce future wave climate time series accounting for possible changes in the global climate system. An application of long-term shoreline evolution is presented by comparing the performance of the real and the simulated wave climate using a one-line model.
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  • Antolínez, J. A. A., Méndez, F. J., Camus, P., Vitousek, S., González, E. M., Ruggiero, P., & Barnard, P. (2015). A Multi‐scale Climate Emulator for Long‐term Morphodynamics (MUSCLE‐morpho). Journal of Geophysical Research: Oceans, 121(1),775-791. doi:10.1002/2015JC011107
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  • 121
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  • 1
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  • Jose Antonio A. Antolinez is indebted to the MEC (Ministerio de Educacion, Cultura y Deporte, Spain) for the funding provided in the FPU (Formacion del Profesorado Universitario) studentship (BOE-A-2013-12235). J. A. A. Antolinez, F. J. Mendez, and E. M. Gonzalez acknowledge the support of the Spanish "Ministerio de Economia y Competitividad" under Grant BIA2014-59643-R. This material is based upon work supported by the U.S. Geological Survey under Grant/Cooperative Agreement G15AC00426. The work has been partially funded by project "2013/S 122-208379-Assessment of climate impacts on coastal systems in Europe" from the European Commission, JRC, Institute for Prospective Technological Studies (IPTS).
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