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    <p>The <b>MITgcm</b> (<b>MIT</b> <b>G</b>eneral <b>C</b>irculation
      <b>M</b>odel) is a numerical model designed for study of the
      atmosphere, ocean, and climate. Its non-hydrostatic formulation
      enables it to simulate fluid phenomena over a wide range of
      scales; its adjoint capability enables it to be applied to
      parameter and state estimation problems. By employing fluid
      isomorphisms, one hydrodynamical kernel can be used to simulate
      flow in both the atmosphere and ocean.</p>

    <p>You are welcome to <a href="http://mitgcm.org/source_code.html">
      download</a> and use MITgcm.</p>

    <p>Papers charting the development of MITgcm <a
      href="http://paoc.mit.edu/cmi/publications.htm">can be found here.
      </a></p>

    <hr align="center" size="1" width="75%" />

    <div class="c1"><br /><span class="c3"><b>News</b></span></div>
      
      <!--
      To add News items, please copy the following block outside these comments
      and replace the ===DATE=== and ===MESSAGE=== place-holders with your date
      and your text:
      
      <p><b>===DATE===&nbsp;:</b></p>
      <blockquote>
      ===MESSAGE===
      </blockquote>
      -->

      <p><b>January 15, 2008&nbsp;:</b></p>
      <blockquote>
      Breaking News: Hidden up-to-date Documentation escaped from hide-out:
      <br>
      <A href="http://eddy.csail.mit.edu/r2/latest/">Latest Online Documentation</A>
      </blockquote>

      <p><b>March 19, 2007&nbsp;:</b></p>
      <blockquote>
      Breaking News:  The MITgcm is now able to generate Sea-Ice Donuts.
      In a push to move forward MITgcm on the path of fundamental science and climate
      understanding, David Ferreira and Jean-Michel Campin
      simulated a Sea-ice Donut using a coupled AquaPlanet configuration (see
      movie <A href=movies/Sea_Ice_Donut_x1.mpg>here</A>). 
      This experiment was initialized with  the T and S fields from
      a previous Aquaplanet run which has polar sea-ice caps. These
      caps are associated with salt-compensated temperature inversions in the upper
      ocean. The new run is initialized without sea-ice and within a month, large
      sea-ice caps grow over the poles, rejecting salt. This triggers convection which
      in turns brings relatively warm water to the surface and melts the ice close
      to the poles. Here we have a <A href=movies/Sea_Ice_Donut_x1.mpg>donut</A>. 
      Look out for that chapter on aqua-planets in the next IPCC report!
      </blockquote>

      <p><b>Feb 04, 2007&nbsp;:</b></p>
      <blockquote>
       News is back by popular request. New advection schemes are currently
       being tested. Some preliminary results from the new schemes can be seen 
       <A href=news/advection_testing_jan07/advection_testing.html>
       here.
       </A>
       The plots show a tracer being transported and stretched in the
       MITgcm advect_xz verification test. Both new schemes (OS7MP
       and Prather second-order scheme with limiting) have very low implied 
       diffusivity.
       We are currently evaluating the
       schemes to assess their implied diffusivity, with a bottle of 
       Jean-Michel's favorite Belgian
       beer going to the the least diffusive scheme - watch this space!
      </blockquote>

      <p><b>March 9, 2005&nbsp;:</b></p>
      <blockquote>
       A short article entitled 
       "NASA Supercomputer Improves Prospects for Ocean Climate Research"
       in the current EOS (volume 86, number 9, March 1 2005)
       gives a succinct overview of some of the advanced high-resolution
       state-estimation work being undertaken with MITgcm by members 
       of the ECCO consortium. The article describes 
       ground-breaking computational
       technologies that have enabled this work and outlines the future goals of
       this next generation planetary scale assimilation initiative. A pdf containing 
       the article can be found 
       <a href="http://mitgcm.org/articles/EOSecco.pdf">
       here.
       </a>
      </blockquote>
      
      <p><b>Sep 24, 2004&nbsp;:</b></p>
      <blockquote>
        MITgcm is now able to write and (to a lesser extent) read NetCDF files.
        The framework (the "MNC" package) has been tested by numerous developers
        on literally dozens of machines and, for the past month, has been a
        working part of our standard verification suite.  We encourage MITgcm
        users (especially new users) to try out the MNC package since the model
        output is now much easier to read and understand.  For further NetCDF
        information please see:
        <ul>
          <li><a href="http://mitgcm.org/cmi_redir.php/package_mnc">
              Manual entry for the MNC package.</a></li>
          <li>Directions <a 
              href="http://mitgcm.org/pipermail/mitgcm-support/2004-September/002589.html">
              from our email archives</a> and <a 
              href="http://mitgcm.org/mwiki/index.php/MNC_Package">from our 
              wiki</a> for installing NetCDF.</li>
          <li>The <a
              href="http://my.unidata.ucar.edu/content/software/netcdf/index.html">
              main NetCDF web site</a>.</li>
        </ul>
       </blockquote>
      
      <p><b>May 20, 2004 at 05:01 EDT&nbsp;:</b></p>
      <blockquote>
        Congratulations to Ed and Boo on the birth this
        morning of a 7lb 1oz, baby girl, 
        <a href="http://eddy.csail.mit.edu/gallery/Alex-Arrives">Alexandra Sophia</a>.
      </blockquote>
      
      <p><b>April 13, 2004&nbsp;:</b></p>
      <blockquote>
        A new movie by Dimitris Menemenlis and Chris Henze shows ice dynamics
        over the North Pole. The viscous-plastic behavior of ice sheets subject
        to wind forcing and ocean currents can be clearly seen in the
        translucent ice-sheet. The movie can be downloaded from <a
        href="movies/ice_03.mpg"> here</a> (this one is 91MB!).  A set of web
        pages with summary information regarding MITgcm simulations being
        carried out in the ECCO high resolution global ocean state estimation
        initiative can be found <a href="http://ecco.jpl.nasa.gov/cube_sphere">
          here</a>.
      </blockquote>

      <p><b>March 26, 2004 at 01:38 EST&nbsp;:</b></p>
      <blockquote>
        Congratulations to Alistair and Sonya on the birth this
        morning of a 7lb 3oz, 19.5 inches long baby girl, Ariane Jade.
      </blockquote>

      <p><b>January 22, 2004&nbsp;:</b></p>
      <blockquote>
        A spectacular movie by Chris Henze of NASA AMES beautifully captures an 
        eddy permitting expanded cube sphere MITgcm simulation being carried out, 
        as part of the <a href="http://www.ecco-group.org">ECCO</a> project, by 
        Dimitris Menemenlis and others at JPL with help from core MITgcm team members 
        and staff from NASA AMES. The animation 
        shows the speed of ocean currents at 15m depth from the simulation, it can be 
        downloaded <a href=news/cube_6.mpg>here</a> (its 47MB 
        but worth waiting for!). A second animation with different perspectives and 
        rotation can be downloaded <a href=news/cube_7.mpg>here</a>.
        As described <a href=news/agu_2004/menemenlis_et_al.pdf>here</a> Dimitris Menemenlis
        will be presenting aspects of this calculation at AGU in Portland.
        A list of some other AGU 2004 presentation abstracts related to MITgcm can be
        found <a href=news/agu_2004>here</a>.
      </blockquote>
            
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24
25	edhill	1.11	<p>The <b>MITgcm</b> (<b>MIT</b> <b>G</b>eneral <b>C</b>irculation
26			<b>M</b>odel) is a numerical model designed for study of the
27			atmosphere, ocean, and climate. Its non-hydrostatic formulation
28			enables it to simulate fluid phenomena over a wide range of
29			scales; its adjoint capability enables it to be applied to
30			parameter and state estimation problems. By employing fluid
31			isomorphisms, one hydrodynamical kernel can be used to simulate
32			flow in both the atmosphere and ocean.</p>
33	edhill	1.1
34	edhill	1.11	<p>You are welcome to <a href="http://mitgcm.org/source_code.html">
35			download</a> and use MITgcm.</p>
36
37			<p>Papers charting the development of MITgcm <a
38			href="http://paoc.mit.edu/cmi/publications.htm">can be found here.
39			</a></p>
40
41			<hr align="center" size="1" width="75%" />
42
43			<div class="c1"><br /><span class="c3"><b>News</b></span></div>
44	edhill	1.23
45	edhill	1.17	<!--
46			To add News items, please copy the following block outside these comments
47			and replace the ===DATE=== and ===MESSAGE=== place-holders with your date
48			and your text:
49	edhill	1.23
50			<p><b>===DATE=== :</b></p>
51			<blockquote>
52			===MESSAGE===
53			</blockquote>
54	edhill	1.17	-->
55	heimbach	1.29
56	heimbach	1.30	<p><b>January 15, 2008 :</b></p>
57	heimbach	1.29	<blockquote>
58			Breaking News: Hidden up-to-date Documentation escaped from hide-out:
59			<br>
60			<A href="http://eddy.csail.mit.edu/r2/latest/">Latest Online Documentation</A>
61			</blockquote>
62	cnh	1.25
63	cnh	1.27	<p><b>March 19, 2007 :</b></p>
64			<blockquote>
65	cnh	1.28	Breaking News: The MITgcm is now able to generate Sea-Ice Donuts.
66	cnh	1.27	In a push to move forward MITgcm on the path of fundamental science and climate
67			understanding, David Ferreira and Jean-Michel Campin
68			simulated a Sea-ice Donut using a coupled AquaPlanet configuration (see
69			movie <A href=movies/Sea_Ice_Donut_x1.mpg>here</A>).
70			This experiment was initialized with the T and S fields from
71			a previous Aquaplanet run which has polar sea-ice caps. These
72			caps are associated with salt-compensated temperature inversions in the upper
73			ocean. The new run is initialized without sea-ice and within a month, large
74			sea-ice caps grow over the poles, rejecting salt. This triggers convection which
75			in turns brings relatively warm water to the surface and melts the ice close
76			to the poles. Here we have a <A href=movies/Sea_Ice_Donut_x1.mpg>donut</A>.
77			Look out for that chapter on aqua-planets in the next IPCC report!
78			</blockquote>
79
80	cnh	1.26	<p><b>Feb 04, 2007 :</b></p>
81			<blockquote>
82			News is back by popular request. New advection schemes are currently
83			being tested. Some preliminary results from the new schemes can be seen
84			<A href=news/advection_testing_jan07/advection_testing.html>
85			here.
86			</A>
87			The plots show a tracer being transported and stretched in the
88			MITgcm advect_xz verification test. Both new schemes (OS7MP
89			and Prather second-order scheme with limiting) have very low implied
90			diffusivity.
91			We are currently evaluating the
92			schemes to assess their implied diffusivity, with a bottle of
93			Jean-Michel's favorite Belgian
94			beer going to the the least diffusive scheme - watch this space!
95			</blockquote>
96
97	cnh	1.25	<p><b>March 9, 2005 :</b></p>
98			<blockquote>
99			A short article entitled
100			"NASA Supercomputer Improves Prospects for Ocean Climate Research"
101			in the current EOS (volume 86, number 9, March 1 2005)
102			gives a succinct overview of some of the advanced high-resolution
103			state-estimation work being undertaken with MITgcm by members
104			of the ECCO consortium. The article describes
105			ground-breaking computational
106			technologies that have enabled this work and outlines the future goals of
107			this next generation planetary scale assimilation initiative. A pdf containing
108			the article can be found
109			<a href="http://mitgcm.org/articles/EOSecco.pdf">
110			here.
111			</a>
112			</blockquote>
113	edhill	1.23
114			<p><b>Sep 24, 2004 :</b></p>
115	edhill	1.20	<blockquote>
116			MITgcm is now able to write and (to a lesser extent) read NetCDF files.
117			The framework (the "MNC" package) has been tested by numerous developers
118			on literally dozens of machines and, for the past month, has been a
119	edhill	1.22	working part of our standard verification suite. We encourage MITgcm
120			users (especially new users) to try out the MNC package since the model
121			output is now much easier to read and understand. For further NetCDF
122			information please see:
123	edhill	1.20	<ul>
124	edhill	1.24	<li><a href="http://mitgcm.org/cmi_redir.php/package_mnc">
125	edhill	1.23	Manual entry for the MNC package.</a></li>
126	edhill	1.24	<li>Directions <a
127	edhill	1.22	href="http://mitgcm.org/pipermail/mitgcm-support/2004-September/002589.html">
128	edhill	1.24	from our email archives</a> and <a
129			href="http://mitgcm.org/mwiki/index.php/MNC_Package">from our
130			wiki</a> for installing NetCDF.</li>
131	edhill	1.22	<li>The <a
132	edhill	1.23	href="http://my.unidata.ucar.edu/content/software/netcdf/index.html">
133	edhill	1.22	main NetCDF web site</a>.</li>
134	edhill	1.20	</ul>
135	cnh	1.25	</blockquote>
136	edhill	1.23
137			<p><b>May 20, 2004 at 05:01 EDT :</b></p>
138	cnh	1.18	<blockquote>
139			Congratulations to Ed and Boo on the birth this
140	edhill	1.19	morning of a 7lb 1oz, baby girl,
141			<a href="http://eddy.csail.mit.edu/gallery/Alex-Arrives">Alexandra Sophia</a>.
142	cnh	1.18	</blockquote>
143	edhill	1.17
144	edhill	1.23	<p><b>April 13, 2004 :</b></p>
145	edhill	1.17	<blockquote>
146			A new movie by Dimitris Menemenlis and Chris Henze shows ice dynamics
147			over the North Pole. The viscous-plastic behavior of ice sheets subject
148			to wind forcing and ocean currents can be clearly seen in the
149			translucent ice-sheet. The movie can be downloaded from <a
150			href="movies/ice_03.mpg"> here</a> (this one is 91MB!). A set of web
151			pages with summary information regarding MITgcm simulations being
152			carried out in the ECCO high resolution global ocean state estimation
153			initiative can be found <a href="http://ecco.jpl.nasa.gov/cube_sphere">
154	edhill	1.23	here</a>.
155	edhill	1.17	</blockquote>
156	cnh	1.12
157	edhill	1.23	<p><b>March 26, 2004 at 01:38 EST :</b></p>
158	cnh	1.15	<blockquote>
159	edhill	1.17	Congratulations to Alistair and Sonya on the birth this
160			morning of a 7lb 3oz, 19.5 inches long baby girl, Ariane Jade.
161	cnh	1.15	</blockquote>
162	cnh	1.12
163	edhill	1.23	<p><b>January 22, 2004 :</b></p>
164			<blockquote>
165			A spectacular movie by Chris Henze of NASA AMES beautifully captures an
166			eddy permitting expanded cube sphere MITgcm simulation being carried out,
167			as part of the <a href="http://www.ecco-group.org">ECCO</a> project, by
168			Dimitris Menemenlis and others at JPL with help from core MITgcm team members
169			and staff from NASA AMES. The animation
170			shows the speed of ocean currents at 15m depth from the simulation, it can be
171			downloaded <a href=news/cube_6.mpg>here</a> (its 47MB
172			but worth waiting for!). A second animation with different perspectives and
173			rotation can be downloaded <a href=news/cube_7.mpg>here</a>.
174			As described <a href=news/agu_2004/menemenlis_et_al.pdf>here</a> Dimitris Menemenlis
175			will be presenting aspects of this calculation at AGU in Portland.
176			A list of some other AGU 2004 presentation abstracts related to MITgcm can be
177			found <a href=news/agu_2004>here</a>.
178			</blockquote>
179
180	edhill	1.1	</body>
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182