Conservative Remeshing for Adaptive Modelling of the Atmosphere
Lead Research Organisation:
University of Reading
Department Name: Meteorology
Abstract
This project will provide a vital step in creating next generation models of the atmosphere for weather and climate forecasting with adaptive meshes. Adaptive meshes mean that higher resolution can be used only where it is really needed, such as for tropical cyclones, extratropical weather fronts and mixing of chemical species, but without huge increases in computer resources. This will lead to improved regional climate predictions and extended weather forecasts. A vital link in creating accurate adaptive mesh models is transferring the solution from a previous mesh to a newly adapted mesh without losing or gaining mass - conservative mapping. During this project we will implement a number of different methods for conservative mapping and test them on simplified adaptive mesh models of the global atmosphere. One of the tests will be tracking chemical species around the atmosphere and providing higher resolution where the species change most rapidly.
Organisations
People |
ORCID iD |
Hilary Weller (Principal Investigator) |
Publications
Weller H
(2012)
Computational Modes and Grid Imprinting on Five Quasi-Uniform Spherical C Grids
in Monthly Weather Review
Weller H
(2010)
Challenges Facing Adaptive Mesh Modeling of the Atmosphere and Ocean
in Bulletin of the American Meteorological Society
Weller H
(2012)
Controlling the Computational Modes of the Arbitrarily Structured C Grid
in Monthly Weather Review
Slingo J
(2011)
The Impact of Finer-Resolution Air-Sea Coupling on the Intraseasonal Oscillation of the Indian Monsoon
in Journal of Climate
Description | I identified and described some fundamental problems with a numerical method that the Met Office were considering for their next generation prediction model and as a result they re-focused their search for the optimal numerical method to use in their next model. The numerical method that they abandoned as a result of my research was the C-grid for arbitrary meshes. See http://www.geosci-model-dev.net/7/779/2014/ |
First Year Of Impact | 2014 |
Sector | Aerospace, Defence and Marine |
Impact Types | Policy & public services |
Title | AtmosFOAM |
Description | A suite of numerical models and methods for atmospheric modelling using emerging numerical techniques |
Type Of Material | Computer model/algorithm |
Year Produced | 2014 |
Provided To Others? | Yes |
Impact | Papers and collaborative code development with students |
URL | https://github.com/AtmosFOAM/ |