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arXiv · 2202.01681

Domain Decomposition in space-time of 4D-VAR Data Assimilation problem: a case study on the ROMS software

L. D'Amore·R. Cacciapuoti·A. Moore
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Abstract

Domain Decomposition of 4D-VAR Data Assimilation (DD-4DVAR) is made up of decomposition of the spate-time domain, solution of reduced forecast model and minimization of local 4D-VAR functionals. Relying on the existing software implementation of ROMS software, we describe main components of DD-4D VAR DA method, highlighting the topics that we will should address both on the mathematical problem underlying ROMS and the MPI-based code implementation of the ROMS-IS4DVAR formulation.

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L. D'Amore, R. Cacciapuoti, A. Moore. 2021-12-22. Domain Decomposition in space-time of 4D-VAR Data Assimilation problem: a case study on the ROMS software. https://arxiv.org/abs/2202.01681

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