TL;DR
Cliffs is an open-source numerical model for tsunami simulation, offering flexible configurations, parallel processing, and user-friendly input/output options, with a detailed manual provided for users.
Contribution
It introduces a versatile, open-source tsunami modeling tool with specific features like grid nesting, runup simulation, and parallelization, building on prior models with enhancements.
Findings
Supports both 1D and 2D configurations
Includes runup and boundary forcing capabilities
Parallelized for efficient computation
Abstract
Cliffs is an open-source relative of MOST (Method Of Splitting Tsunamis) numerical model, implemented as described in (Tolkova, 2014, Pure and Appl. Geophys., 171(9), 2289-2314), with some modifications thereafter. Cliffs features: Shallow-Water approximation with an option to manipulate numerical dispersion; Use of Cartesian or spherical (lon/lat) coordinates; 1D and 2D configurations; Structured co-located grid with (optionally) varying spacing; Runup on land; Initial conditions or boundary forcing; Grid nesting with one-way coupling; Parallelized with OpenMP; NetCDF format of input/output data. This user manual accompanies Cliffs code distribution on GitHub, and is updated following essential updates to the code.
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