The MITgcm (MIT General Circulation
- Model) is a numerical model for
- studying the ocean and atmosphere. It is capable of simulating these
- fluids at a wide range of scales and can resolve many different
- processes. It has a non-hydrostatic capability (Marshall et al., JGR 1997a
- & b) and uses the finite volume method to accurately represent the
- bottom boundary position (Adcroft et al., MWR 1998).
December 9th 2003 :
- The new continuous testing page at - http://mitgcm.org/testing.html provides information on the status - of the latest development code. The page shows summary pass/fail - ratios for the MITgcm regression tests on various platforms. Details - on the platforms being tested and detailed information on the status - of individual regression tests can be viewed from links on the test - page.- -
-
October 27th 2003 :
- MIT Climate Modeling Initiative - (CMI) web pages introduce the MITgcm model, its - applications, and the development team.- -
-
October 21st 2003 :
- MITgcm and ECCO-JPL team - feature as showcase application in NASA-SGI large shared - memory system program.- +
-
The MITgcm (MIT General Circulation + Model) 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.
+ +You are welcome to + download and use MITgcm.
+ +Papers charting the development of MITgcm can be found here. +
+ +January 15, 2008 :
++ Breaking News: Hidden up-to-date Documentation escaped from hide-out: ++ +
+ Latest Online Documentation +
March 19, 2007 :
++ 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 here). + 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 donut. + Look out for that chapter on aqua-planets in the next IPCC report! ++ +
Feb 04, 2007 :
++ News is back by popular request. New advection schemes are currently + being tested. Some preliminary results from the new schemes can be seen + + here. + + 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! ++ +
March 9, 2005 :
++ 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 + + here. + ++ +
Sep 24, 2004 :
++ 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: ++ ++
+- + Manual entry for the MNC package.
+- Directions + from our email archives and from our + wiki for installing NetCDF.
+- The + main NetCDF web site.
+
May 20, 2004 at 05:01 EDT :
++ Congratulations to Ed and Boo on the birth this + morning of a 7lb 1oz, baby girl, + Alexandra Sophia. ++ +
April 13, 2004 :
++ 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 here (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 + here. ++ +
March 26, 2004 at 01:38 EST :
++ Congratulations to Alistair and Sonya on the birth this + morning of a 7lb 3oz, 19.5 inches long baby girl, Ariane Jade. ++ +
January 22, 2004 :
++ 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 ECCO 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 here (its 47MB + but worth waiting for!). A second animation with different perspectives and + rotation can be downloaded here. + As described here 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 here. ++