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For more information about FAMOUS, use the links in the sidebar on the left
For more information about FAMOUS, use the links in the sidebar on the left
FAMOUS is a low-resolution version of the HadCM3 AOGCM. It is intended to be used for projects where long periods of simulated time are needed, because it runs about ten times faster than HadCM3, which it has been tuned to emulate. Its development is a joint project of
The atmosphere component of FAMOUS is 48×37 (7.5deg longitude x 5deg latitude) with 11 levels in the vertical and a 1-hour timestep. The ocean component is 96×73 (3.75deg longitude x 2.5deg latitude) with 20 levels, the same as HadCM3L, with a 12-hour timestep (using a distorted momentum equation). FAMOUS does not use flux adjustment; in order to achieve this the ocean component of FAMOUS was developed with a few changes to the bathymetry of the North Atlantic to allow a more realistic representation of the ocean circulation, as described by Jones (J Atmos Ocean Tech, 2003). Owing to its lower resolution, the climate of FAMOUS is not as realistic as that of HadCM3, but the speed of FAMOUS made it possible to tune it using an iterative objective approach, which cannot be afforded with higher-resolution models. The tuning process and the resulting climate simulation are described by Jones et al. (Climate Dyn, 2005). Recent improvements and their impact on the simulated climate are described in Smith et al. (Geosci. Model Dev. 2008).
Models of the terrestrial and marine carbon cycle have been implemented in FAMOUS, following HadCM3LC (Cox et al., Nature, 2000). We refer to a configuration of FAMOUS with the carbon cycle as FAMOUS-C.
FAMOUS has been made available for general use with support from QUEST. To use FAMOUS, you need first to install the portable Unified Model (the Met Office model); see under “UM support” on the NCAS-CMS website. FAMOUS runs at UM version 4.5. Once the UM is running, you can install one of the FAMOUS Standard Versions. NCAS-CMS and QUEST are supporting FAMOUS on the HPCx supercomputer, the QUEST cluster and the new HECToR supercomputer.
Please contact us (famous-esm-info at lists.reading.ac.uk) if you would like to use FAMOUS. You are welcome to read and join the FAMOUS discussion email list.
Projects using or working on FAMOUS include
Development of FAMOUS and associated tools is continuing in Reading (see FAMOUS Minutes, FAQ, CurrentWorkAnnette and CurrentWorkRobin) with support from QUEST. The GLIMMER community ice-sheet model is being coupled to FAMOUS, with support from RAPID.
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FAMOUS is a fast Earth-system model, built around general circulation models of the atmosphere and ocean (AOGCM). FAMOUS originated as a low-resolution version of the widely used HadCM3 AOGCM, intended for projects where long periods of simulated time were needed, because it runs about ten times faster than HadCM3 - up to 250 simulated years per day. New options for a closed carbon cycle, interactive vegetation and icesheets and other developments have made it into an independent Earth-system model.
For more information about FAMOUS, use the links in the sidebar on the left
The atmosphere component of FAMOUS is 48×36 (7.5deg longitude x 5deg latitude) with 11 levels in the vertical and a 1-hour timestep. The ocean component is 98×72 (3.75deg longitude x 2.5deg latitude) with 20 levels, the same as HadCM3L, with a 12-hour timestep (using a distorted momentum equation). FAMOUS does not use flux adjustment; in order to achieve this the ocean component of FAMOUS was developed with a few changes to the bathymetry of the North Atlantic to allow a more realistic representation of the ocean circulation, as described by Jones (J Atmos Ocean Tech, 2003). Owing to its lower resolution, the climate of FAMOUS is not as realistic as that of HadCM3, but the speed of FAMOUS made it possible to tune it using an iterative objective approach, which cannot be afforded with higher-resolution models. The tuning process and the resulting climate simulation are described by Jones et al. (Climate Dyn, 2005). Recent improvements and their impact on the simulated climate are described in Smith et al. (Geosci. Model Dev. Discuss. 2008).
The atmosphere component of FAMOUS is 48×37 (7.5deg longitude x 5deg latitude) with 11 levels in the vertical and a 1-hour timestep. The ocean component is 96×73 (3.75deg longitude x 2.5deg latitude) with 20 levels, the same as HadCM3L, with a 12-hour timestep (using a distorted momentum equation). FAMOUS does not use flux adjustment; in order to achieve this the ocean component of FAMOUS was developed with a few changes to the bathymetry of the North Atlantic to allow a more realistic representation of the ocean circulation, as described by Jones (J Atmos Ocean Tech, 2003). Owing to its lower resolution, the climate of FAMOUS is not as realistic as that of HadCM3, but the speed of FAMOUS made it possible to tune it using an iterative objective approach, which cannot be afforded with higher-resolution models. The tuning process and the resulting climate simulation are described by Jones et al. (Climate Dyn, 2005). Recent improvements and their impact on the simulated climate are described in Smith et al. (Geosci. Model Dev. 2008).
