https://github.com/dongli/qconswm

This is an implementation of quadratic conservation shallow water model. (please take a look at https://github.com/dongli/gamil-dycore)
https://github.com/dongli/qconswm

atmospheric-modelling dynamical-core fortran-language meteorology numerical-methods

Last synced: 2 months ago
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This is an implementation of quadratic conservation shallow water model. (please take a look at https://github.com/dongli/gamil-dycore)

• Host: GitHub
• URL: https://github.com/dongli/qconswm
• Owner: dongli
• License: gpl-3.0
• Created: 2017-09-23T05:41:34.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-01-24T12:42:20.000Z (over 8 years ago)
• Last Synced: 2024-01-29T16:31:30.607Z (over 2 years ago)
• Topics: atmospheric-modelling, dynamical-core, fortran-language, meteorology, numerical-methods
• Language: Fortran
• Homepage:
• Size: 97.7 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
Introduction

============

This is an shallow-water (i.e. barotropic) implemention of the

quadratic-conservation dynamical core (dycore for short) developed in LASG lab

at institute of atmospheric physics (IAP) by Bin Wang's team. This type of

dycore can preserve total mass, total energy and some other conservation

quantities exactly to machine precision level.

The total energy or quadratic form of IAP transformed variables is linked with

computational stability, so when total energy is conserved, the long-term

computing can be ensured which is key to climate simulation.

Currently, the implemention contains Arakawa C grid, second-order spatial

difference satisfying antisymmetric condition, and second-order

predict-correct time integrator, etc. More options will be added soon.

| Time integrator | Order | Implicit | Available |

|-----------------|-------|----------|-----------|

| middle-point    | 2nd   | Yes      | Yes       |

| predict-correct | 2nd   | No       | Yes       |

| runge-kutta     | xxx   | No       | Not yet   |

| leap-frog       | 3rd   | No       | Not yet   |

![rh_test](http://7xvqi7.com1.z0.glb.clouddn.com/rh_test.gif "Rossby-Haurwitz four wave test case result")

Authors

=======

- Bin Wang

- Li Dong

- ...