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| THE ECCO CONSORTIUM | ||
ECCO was established in 1998 as part of the World Ocean Circulation Experiment (WOCE) with the goal of combining a general circulation model (GCM) with diverse observations in order to produce a quantitative depiction of the time-evolving global ocean state. The importance of such an endeavor is recognized by numerous national and international organizations, such as the WMO's World Climate Research Programme (WCRP) and UNESCO's Intergovernmental Oceanographic Comission (IOC). These programs have all noted the necessity of synthesizing the diverse remotely-sensed and in-situ observations with known dynamics and thermodynamics through a GCM. ECCO products are in support of the Climate Variability and Predictability (CLIVAR) programme and the Global Ocean Data Assimilation Experiment (GODAE). |
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ECCO PRODUCTS | |
ECCO'S GENERAL CIRCULATION MODEL | |
AUTOMATIC/ALGORITHMIC DIFFERENTIATION (AD) |
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ECCO products as well as input fields and quality-controlled observations are freely available from several data servers through various applications (including DODS/OPeNDAP, LAS, GDS, Dapper, SRB, Ingrid). |
The ECCO code is based on the MIT general circulation model (MITgcm), a numerical model designed for study of the atmosphere, ocean, and climate. It comes with a variety of packages including physical parameterizations, a sea-ice model, biochemical components, and allows flexible porting across various HPC platforms. For more details on the MITgcm click here. |
Since the mid-1990's, groups at MIT, SIO, JPL and GFDL have applied automatic/algorithmic differentiation (AD) tools for generating tangent linear and adjoint code for ocean circulation and climate studies. ECCO relies heavily on the AD tool TAMC and its commecial successor TAF. The ECCO group is also involved in the development of a new open-source AD tool OpenAD. More details can be found here. |
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| IN THE NEWS | ||||||
AGU's Fall Meeting 2008 will feature an ECCO session, identified as OS04: CLIVAR/GODAE: The ECCO State Estimates. This session will provide an opportunity for ECCO product users to (a) describe the scientific implications of their results, (b) enhance the feedback from the broader community to the Consortium, (c) foster the interaction between ECCO members and other scientists who utilize the state estimates. The oral part (OS41F) will take place on Thursday, Dec. 18th, starting 8am in MW Room 2022. It is preceded by a poster session (OS31C) on Wednesday, Dec. 17th, starting 8am, in MC Hall D.
As part of his Ph.D. thesis, Matt Mazloff has produced an eddy-permitting state estimate at 1/6 degree horizontal resolution of the Southern Ocean, covering the Argo-rich period 2005/06. The adjoint-based solution is dynamically consistent and enables closed budget calculations of various quantities. Matt's thesis was featured in the SDSC Thread Newsletter, and more recently in WHOI's Oceanus magazine (Corralling the Wild and Wooly Southern Ocean). |
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