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                 <LI>ECCO-SIO       SIO and MIT have focused on the method of Lagrange multipliers (MLM),   also known as the adjoint method (or related, 4DVAR in meteorology).   Initial solutions covered the period 1992 to 1997 at 2 degree horizontal   resolution (version 0), and have later been extended to 2002 at 1 degree. (version   1). <BR /> | 
                 <LI>ECCO-SIO       SIO and MIT have focused on the method of Lagrange multipliers (MLM),   also known as the adjoint method (or related, 4DVAR in meteorology).   Initial solutions covered the period 1992 to 1997 at 2 degree horizontal   resolution (version 0), and have later been extended to 2002 at 1 degree. (version   1). <BR /> | 
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                     <A href="http://www.ecco-group.org/ecco1/" target="_blank">ECCO-SIO   homepage</A>.<br /> | 
                     <A href="http://www.ecco-group.org/ecco1/" target="_blank">ECCO-SIO   homepage</A>.<br /> | 
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                 </li><LI>ECCO-JPL       JPL has focused mainly on an extended Kalman filter and RTS smoother   approach, and is near-operational, keeping its solution close to real-time.   Because of its focus on the tropical Pacific, its grid is telescopically   increased from 1 degree at mid-latitudes to 1/3 degree near the equator. <BR /> | 
                 </li><LI>ECCO-JPL       JPL has focused mainly on an extended Kalman filter and RTS smoother approach.  Solutions are produced in near real-time covering the period from 1993 to present.  Its grid telescopically increases from 1 deg. at mid-latitudes to 1/3 deg. near the equator with 46 vertical levels. <BR /> | 
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                     <A href="http://ecco.jpl.nasa.gov/external/" target="_blank">ECCO-JPL homepage</A>. </LI> | 
                     <A href="http://ecco.jpl.nasa.gov/external/" target="_blank">ECCO-JPL homepage</A>. </LI> | 
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