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   <meta NAME="KEYWORDS" CONTENT="Ocean Model; Atmospheric Model; General Circulation Model; OGCM; AGCM; Scientific Computing; Geophysical Fluids Modeling; Cluster Computing; Automatic Differentiation; Adjoint Sensitivity; Tangent Linear;> | 
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MITgcm Sealion Release Home Page | 
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<! BODY SETUP > | 
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<! END BODY SETUP > | 
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<table border=0 width=730 height=903 | 
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       cellspacing=0 cellpadding=0 | 
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       align=center | 
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       background="sealion-wm3.JPG"> | 
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  <br> | 
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<blockquote> | 
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<blockquote> | 
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<div align="Justify"><font FACE="HELVETICA" SIZE="3"> | 
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The M.I.T. General Circulation Model (MITgcm) Release 1 contains code for | 
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simulating a wide variety of ocean and atmosphere problems. The model is | 
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compatible with platforms ranging from desktop and commodity  | 
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cluster x86 systems to high-end multi-processor supercomputers. Minimum requirements  | 
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are a Fortran compiler (the free g77 compiler is sufficient) and a UNIX like  | 
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operating system (such as Linux, Solaris, IRIX).  | 
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<br> | 
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<br> | 
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A broad span of example problem  | 
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configurations are included in the release. These examples range from planetary scale  | 
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circulation simulations of the ocean and atmosphere to high-resolution, small-scale  | 
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process studies encompassing non-hydrostatic dynamics. In addition to conventional  | 
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prognostic operation, differentiated forms (both tangent-linear and adjoint) | 
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of the MITgcm code can be generated automatically using either the TAMC or TAF  | 
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automatic differentiation tools. These derivative forms can be used for dynamical  | 
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sensitivity studies and can also be used, together with appropriate optimisation and  | 
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control infrastructure, for mathematically rigorous state-estimation and  | 
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data-assimilation. A seamless interface to the ECCO group optimisation  | 
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environment is available. | 
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</div> | 
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<br> | 
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  <br><center> | 
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   <h1>MITgcm Release 1 Features:</h1> | 
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  </center> | 
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  <br> <center> | 
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   <h3> | 
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   <A href="online_documents/online_documents.html"> | 
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    Oceanic and Atmospheric Simulations | 
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   </A> | 
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   </h3> | 
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  </center> | 
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  <br> <center> | 
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   <h3> | 
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   <A href="online_documents/online_documents.html"> | 
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    Automatic Differentiation and Adjoint Sensitivity</h3> | 
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   </A> | 
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  </center> | 
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  <br> <center> | 
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   <A href="online_documents/online_documents.html"> | 
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   <h3>Open Boundaries, Regional and Process Studies</h3> | 
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   </A> | 
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  </center> | 
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  <br> <center> | 
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   <A href="online_documents/online_documents.html"> | 
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    <h3>Packaged Source Repository</h3> | 
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  </center> | 
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  <br> <center> | 
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   <A href="online_documents/online_documents.html"> | 
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    <h3>Algorithm and Code Documentation</h3> | 
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   </A> | 
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  </center> | 
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