The SPEEDO model is an 'intermediate-complexity', three-dimensional
coupled atmosphere-ocean-sea ice General Circulation Model.
The atmospheric component is the KNMI version of the
Speedy model
developed at ICTP, a spectral T30 global eight level primitive equation model.
The oceanic component is the
CLIO model
which is a primitive equation, free-surface ocean general circulation model coupled
to a thermodynamic-dynamic sea-ice model developed at UCL. In addition to CLIO,
a prescribed SST and a slab ocean model are included. Two land models
are available: a prescribed land surface model and a land-bucket model with
a simple hyrological cycle.
Download
You can download a 70 Mb gzipped tar file containing the source code of
the coupled model SPEEDO:
SPEEDO.tar.gz.
Installation instructions are included in the package.
Please Cite Model Contributors
When you are using SPEEDO in scientific papers, you should quote the references
below and note that the model is available at the URL http://www.knmi.nl/onderzk/CKO/SPEEDO.html .
The references are:
C. A. Severijns and W. Hazeleger: The efficient global primitive equation
climate model SPEEDO, Geosci. Model Dev., 3, 105-122, 2010.
Molteni F (2003) Atmospheric simulations using a GCM with simplified
physical parametrizations. I. Model climatology and variability in
multi-decadal experiments. Clim Dyn 20: 175-191
Kucharski F, Molteni F, and Bracco A (2006) Decadal interactions
between the western tropical Pacific and the North Atlantic
Oscillation. Clim Dyn 26: 79-91
Goosse H. and T. Fichefet, 1999. Importance of ice-ocean interactions for
the global ocean circulation: a model study. Journal of Geophysical Research,
104(C10), 23337-23355. (PDF)
Postprocessing
Speedy creates output files in the GrADS format which can be converted to NetCDF
with grads2nc. CLIO outputs data as fortran binary files. A tool to convert
these files to NetCDF is included. The other models create NetCDF output files.
Support
SPEEDO is supported at the S0 level (see also
the page on support levels).
(More information about the CLIO model is also available
here.)
The following combinations of component models have been used to complete 20 year
test runs: Speedy-Land-Sea, Speedy-LBM-Sea, Speedy-LBM-FOcean, Speedy-LBM-SlabOcean,
and Speedy-LBM-CLIO. See the instructions included with the package for more information.
Disclaimer Statement
The SPEEDO coupled ocean-atmosphere model is made available on this web page for
climate research purposes.
With respect to documents available from this server, neither KNMI nor any of its
employees, makes any warranty, express or implied, including the warranties of
merchantability and fitness for a particular purpose, or assumes any legal liability
or responsibility for the accuracy, completeness, or usefulness of any information,
product, or process disclosed.
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