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| == Introduction == | === Introduction === pyOM2 is a numerical circulation ocean model powered by [[https://www.python.org|Python]] |
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| Features are: | |
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| pyOM2.0 (Python Ocean Model) is a numerical circulation ocean model which was written for educational purpose. It is meant to be a simple and easy to use numerical tool to configure and to integrate idealized and realistic numerical simulations of the ocean in Boussinesq approximation. Non-hydrostatic situations as well as large-scale oceanic flows can be considered, Cartesian or pseudo-spherical coordinate systems can be used. Several idealized experiments and examples are preconfigured and can be easily chosen and modified using two alternative configuration methods based on Fortran90 or Python. Prerequisites for the installation is a Fortran 90 compiler and the Lapack library, and for the Fortran front the NetCDF-library (since IO is realized mainly using the NetCDF format). For the Python front end, the numerical module \verb+numpy+ is required and several other modules can be used in addition, e.g. to provide a graphical user interface. Both version are based on identical Fortran90 code which is fully parallelized based on the MPI-library to enhance performance. |
* Cartesian or pseudo-spherical coordinate systems |
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| * Hydrostatic or non-hydrostatic configurations * energetically consistent parameterisations * Fortran and Python front end * Graphical User Interface * fully parallelized using [[http://www.mpi-forum.org/|MPI]] Idealized and realistic configurations are simple and easy to configure and to integrate. Fortran and a Python version are based on the identical Fortran90 core code. Several idealized and realistic examples are preconfigured and can be easily chosen and modified using two alternative configuration methods based on Fortran90 or Python. |
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| * Model Manual [[attachment:pyOM2.pdf|Here]] | * [[attachment:pyOM2.pdf|Documentation]] |
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| * Ocean Model Source Code [[attachment:pyOM_2.1.tar.gz|Here]] | * Source code as [[attachment:pyOM2.1.0.tar.gz|tar ball]] |
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| == Prerequisites and Installation == === Prerequisites === |
* pyOM2 installed on lightweight Debian system as Virtual box client |
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| ... | === Prerequisites and Installation === Prerequisites for the Fortran front are Fortran 90 compiler, Lapack and NetCDF library |
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| === Installation === | Prerequisites for the Python front end is Python and the module Numpy, several other modules can be used to provide a graphical user interface, Netcdf IO, etc |
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| ... | For installation details refer to the [[attachment:pyOM2.pdf|Documentation]] |
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| === Idealized configurations === * Vertical shear instability in a non-hydrostatic [[TO/pyOM2/Kelvin Helmholtz|configuration]] |
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| == Sample Configurations == === Kelvin-Helmholtz Instability === [[https://wiki.zmaw.de/ifm/TO/pyOM/Kelvin-Helmholtz%20Instability|Content Here]] |
* Holmboe instability in a non-hydrostatic [[TO/pyOM2/Holmboe|configuration]] |
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| {{{ kelvin_helm1.py }}} === Rayleigh–Bénard Convection === [[https://wiki.zmaw.de/ifm/TO/pyOM/Rayleigh–Bénard%20Convection|Content Here]] |
* Internal gravity wave beams in a non-hydrostatic [[TO/pyOM2/internal wave|configuration]] |
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| {{{ rayleigh.py }}} === Eady's Baroclinic Instability === [[https://wiki.zmaw.de/ifm/TO/pyOM/Rayleigh–Bénard%20Convection|Content Here]] |
* Rayleigh-Bernard convection in a non-hydrostatic [[TO/pyOM2/Rayleigh Bernard|configuration]] |
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| {{{ eady1.py / eady2.py }}} === Eddy-driven zonal jets === [[https://wiki.zmaw.de/ifm/TO/pyOM/Eddy-driven%20Zonal%20Jets|Content Here]] |
* eddy-driven zonal jets in a wide hydrostatic channel [[TO/pyOM2/zonal jets|configuration]] |
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| {{{ jets1.py }}} === Thermohaline Circulation === [[https://wiki.zmaw.de/ifm/TO/pyOM/Thermohaline%20Circulation|Content Here]] |
* the classical Eady problem in a narrow hydrostatic channel [[TO/pyOM2/Eady 1|configuration]] |
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| {{{ THC1.py }}} === Southern Ocean Circulation === [[https://wiki.zmaw.de/ifm/TO/pyOM/Southern%20Ocean%20Circulation|Content Here]] |
* another Eady setup with linear stability analysis [[TO/pyOM2/Eady 2|configuration]] |
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| {{{ acc1.py }}} === ENSO Response === [[https://wiki.zmaw.de/ifm/TO/pyOM/ENSO%20Response|Content Here]] |
* small closed basin with wind-driven channel [[TO/pyOM2/ACC 1|configuration]] |
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| {{{ enso1.py }}} === Equatorial Waves === [[https://wiki.zmaw.de/ifm/TO/pyOM/Equatorial%20Waves|Content Here]] |
* large closed basin and hydrostatic channel [[TO/pyOM2/ACC 2|configuration]] |
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| {{{ eq_waves1.py }}} === Isopycnal Diffusion === [[https://wiki.zmaw.de/ifm/TO/pyOM/Isopycnal%20Diffusion|Content Here]] |
=== Realistic configurations === * 4x4 deg global ocean [[TO/pyOM2/4x4 global model|model]] |
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| {{{ isopyc_test1.py }}} An example of the python GUI for Eady's baroclinic instability case is shown below. |
* 4x4 deg global ocean with 45 levels [[TO/pyOM2/4x4 global model 15 levels|model]] |
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| {{attachment:pyOM.png}} | * 2x2 deg global ocean [[TO/pyOM2/2x2 global model|model]] * 1x1 deg global ocean [[TO/pyOM2/1x1 global model|model]] * 4/3 x 4/3 deg North Atlantic regional [[TO/pyOM2/1.3x1.3 North Atlantic model|model]] * 1/3 x 1/3 deg North Atlantic regional model * 1/12 x 1/12 deg North Atlantic regional model |
Python Ocean Model 2.0 (pyOM2)
Contents
Introduction
pyOM2 is a numerical circulation ocean model powered by Python
Features are:
* Cartesian or pseudo-spherical coordinate systems
* Hydrostatic or non-hydrostatic configurations
* energetically consistent parameterisations
* Fortran and Python front end
* Graphical User Interface
* fully parallelized using MPI
Idealized and realistic configurations are simple and easy to configure and to integrate. Fortran and a Python version are based on the identical Fortran90 core code. Several idealized and realistic examples are preconfigured and can be easily chosen and modified using two alternative configuration methods based on Fortran90 or Python.
Resources
Source code as tar ball
- pyOM2 installed on lightweight Debian system as Virtual box client
Prerequisites and Installation
Prerequisites for the Fortran front are Fortran 90 compiler, Lapack and NetCDF library
Prerequisites for the Python front end is Python and the module Numpy, several other modules can be used to provide a graphical user interface, Netcdf IO, etc
For installation details refer to the Documentation
Idealized configurations
* Vertical shear instability in a non-hydrostatic configuration
* Holmboe instability in a non-hydrostatic configuration
* Internal gravity wave beams in a non-hydrostatic configuration
* Rayleigh-Bernard convection in a non-hydrostatic configuration
* eddy-driven zonal jets in a wide hydrostatic channel configuration
* the classical Eady problem in a narrow hydrostatic channel configuration
* another Eady setup with linear stability analysis configuration
* small closed basin with wind-driven channel configuration
* large closed basin and hydrostatic channel configuration
Realistic configurations
* 4x4 deg global ocean model
* 4x4 deg global ocean with 45 levels model
* 2x2 deg global ocean model
* 1x1 deg global ocean model
* 4/3 x 4/3 deg North Atlantic regional model
* 1/3 x 1/3 deg North Atlantic regional model
* 1/12 x 1/12 deg North Atlantic regional model