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2     <head>
3     <title>ECCO: Estimating the Circulation &amp; Climate of the Ocean</title>
4    
5     <meta name="description" content="Welcome to the Estimation of the
6     Circulation and Climate of the Ocean (ECCO) project homepage. ECCO is a consortium
7     involving the Massachusetts Institute of Technology (MIT), the Jet Propulsion
8     Laboratory (JPL/NASA), the Scripps Institution of Oceanography (SIO/SDSC) and the Institut
9     fuer Meereskunde at the University of Hamburg (IfM). It is funded by the National
10     Oceanographic Partnership Program (NOPP). The long term goal of ECCO is to provide
11     a high resolution coupled ocean/sea-ice/biochemical (and ultimately, consistent
12     atmospheric) state estimate to a wide community." />
13    
14     <meta name="keywords" content="ocean state estimation, ocean data assimilation, re-analysis, Estimation of the Circulation and Climate of the Ocean, ECCO, ECCO- GODAE, ECCO-JPL,GECCO, ECCO2, synthesis, WOCE, altimetry, ocean model, general circulation model,MITgcm, automatic differentiation, algorithmic differentiation, adjoint model, Lagrange multiplier method, OpenAD, TAF, climate variability, ECCO products, Argo, TOPEX-POSEIDON, Jason-1, GRACE, ERS-1, ERS-2, ENVISAT, GFO, XBT, CTD, SEaOS, Kalman filter, Green's function, air-sea fluxes, LAS, DODS, OPeNDAP, MIT, JPL." />
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34     <td width="100" height="24" align="center" valign="middle" bgcolor="#729BBA"><a href="about.htm" class="topnavlink">about ecco</a></td>
35     <td width="5" height="24" align="center" valign="middle" bgcolor="#729BBA"><span class="topnavlink">|</span></td>
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38     <td width="87" height="24" align="center" valign="middle" bgcolor="#729BBA"><a href="model.htm" class="topnavlink">model </a></td>
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40     <td width="178" height="24" align="center" valign="middle" bgcolor="#729BBA"><a href="automatic.htm" class="topnavlink"> automatic differentiation</a></td>
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46     <td width="95" height="24" align="center" valign="middle" bgcolor="#729BBA"><span class="topnavlink"><a href="resources.htm" class="topnavlink">computing</a> </span></td>
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49     <td height="22" colspan="13" valign="middle" bgcolor="#F3F2ED"><div align="right"><span class="breadcrumbslink"><a href="index.htm" class="breadcrumbslink">home</a> &gt; <strong>products</strong><img src="images/spacer.gif" width="10" height="1" /></span> </div></td>
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62     <td width="128" height="22" valign="bottom" bgcolor="#333333" class="leftnavlinkhi">+ products </td>
63     </tr>
64     <tr>
65     <td height="22" bgcolor="#F3F2ED" class="leftnavlink"><a href="servers.htm" class="leftnavlink">servers</a></td>
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74     <td height="22" bgcolor="#F3F2ED" class="leftnavlink">&nbsp;</td>
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76    
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88     </table>
89     <p class="headergray">&nbsp;</p>
90     <p class="headergray">PRODUCTS</p>
91     <p><strong>Brief introduction </strong></p>
92     <p>ECCO products are freely available through several applications. However, we ask that all users of these product use the following standard acknowledgment: "The state estimates were provided by the ECCO Consortium for Estimating the Circulation and Climate of the Ocean funded by the National Oceanographic Partnership Program (NOPP)." <BR />
93     <BR />
94     Data servers contain four groups of data: </p>
95     <UL>
96 heimbach 1.4 <LI>Monthly, 10-day, daily or 12-hourly ocean model state, adjusted forcing fields and mixing coefficients
97 heimbach 1.1 </li><LI>Obsevational data sets as they enter the optimization
98     </li><LI>Misfits between model output and available observations, as computed by the model cost/objective function
99     </li><LI>Past published estimates are also kept on the data servers </LI>
100     </UL>
101     <p><BR />
102     <strong>ECCO products at a glance </strong></p>
103     <p>This table summarizes the available ECCO products. </p>
104     <table border="0" cellpadding="3" cellspacing="0" class="border">
105     <thead>
106     <tr>
107 heimbach 1.4 <td width="97" height="23" valign="middle" bgcolor="#F3F2ED"><p>Product </p></td>
108 heimbach 1.1 <td width="36" valign="middle" bgcolor="#F3F2ED"><p align="center">Version</p></td>
109     <td width="72" valign="middle" bgcolor="#F3F2ED"><p align="center">Period</p></td>
110     <td width="97" valign="middle" bgcolor="#F3F2ED"><p>Horiz.Res.</p></td>
111     <td width="36" valign="middle" bgcolor="#F3F2ED"><p align="center">Levels</p></td>
112     <td width="97" valign="middle" bgcolor="#F3F2ED"><p align="center">Iteration</p></td>
113     <td width="97" valign="middle" bgcolor="#F3F2ED"><p>Method</p></td>
114     <td width="144" valign="middle" bgcolor="#F3F2ED"><p>Comment</p></td>
115     </tr>
116     </thead>
117     <tbody>
118     <tr>
119     <td valign="middle" width="97"><p>ECCO-SIO</p></td>
120     <td valign="middle" width="36"><p align="center">0</p></td>
121     <td valign="middle" width="72"><p align="left">1992-1997</p></td>
122     <td valign="middle" width="97"><p>2 deg.</p></td>
123     <td valign="middle" width="36"><p align="center">23</p></td>
124     <td valign="middle" width="97"><p align="center"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=3" target="_blank">NN</a></p></td>
125     <td valign="middle" width="97"><p>adjoint</p></td>
126     <td valign="middle" width="144"><p>&nbsp;</p></td>
127     </tr>
128     <tr>
129     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>ECCO-SIO</p></td>
130     <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">0</p></td>
131     <td width="72" valign="middle" bgcolor="#F1F4F8"><p align="left">1992-2000</p></td>
132     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>2 deg.</p></td>
133     <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">23</p></td>
134     <td width="97" valign="middle" bgcolor="#F1F4F8"><p align="center"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=15" target="_blank">NN</a></p></td>
135     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>adjoint</p></td>
136     <td width="144" valign="middle" bgcolor="#F1F4F8"><p>&nbsp;</p></td>
137     </tr>
138     <tr>
139     <td valign="middle" width="97"><p>ECCO-SIO</p></td>
140     <td valign="middle" width="36"><p align="center">1</p></td>
141     <td valign="middle" width="72"><p align="left">1992-2002</p></td>
142     <td valign="middle" width="97"><p>1 deg.</p></td>
143     <td valign="middle" width="36"><p align="center">23</p></td>
144     <td valign="middle" width="97"><p align="center"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=39" target="_blank">69</a></p></td>
145     <td valign="middle" width="97"><p>adjoint</p></td>
146     <td valign="middle" width="144"><p>&nbsp;</p></td>
147     </tr>
148     <tr>
149     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>ECCO-GODAE</p></td>
150     <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">2</p></td>
151     <td width="72" valign="middle" bgcolor="#F1F4F8"><p align="left">1992-2004</p></td>
152     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>1 deg.</p></td>
153     <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">23</p></td>
154 heimbach 1.3 <td width="97" valign="middle" bgcolor="#F1F4F8"><p align="center"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=182" target="_blank">177</a>. <a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=131" target="_blank">199</a>. <a href="http://www.ecco-group.org/eccolas/servlets/dataset?catitem=90" target="_blank">216</a></p></td>
155 heimbach 1.1 <td width="97" valign="middle" bgcolor="#F1F4F8"><p>adjoint</p></td>
156     <td width="144" valign="middle" bgcolor="#F1F4F8"><p>&nbsp;</p></td>
157     </tr>
158     <tr>
159     <td valign="middle" width="97"><p>ECCO-GODAE</p></td>
160     <td valign="middle" width="36"><p align="center">3</p></td>
161     <td valign="middle" width="72"><p align="left">1992-2006</p></td>
162     <td valign="middle" width="97"><p>1 deg.</p></td>
163     <td valign="middle" width="36"><p align="center">23</p></td>
164     <td valign="middle" width="97"><p align="center"><a href="http://www.ecco-group.org/las/servlets/dataset?catitem=421" target="_blank">27</a></p></td>
165     <td valign="middle" width="97"><p>adjoint</p></td>
166 heimbach 1.5 <td valign="middle" width="144"><p>experimental (sea-ice, bulk formulae)</p></td>
167 heimbach 1.1 </tr>
168     <tr>
169 heimbach 1.5 <td valign="middle" bgcolor="#F1F4F8">ECCO-GODAE&nbsp;&nbsp; </td>
170     <td valign="middle" bgcolor="#F1F4F8">2,3</td>
171     <td valign="middle" bgcolor="#F1F4F8">1992-2006&nbsp;&nbsp; </td>
172     <td valign="middle" bgcolor="#F1F4F8">1 deg.</td>
173     <td align="center" valign="middle" bgcolor="#F1F4F8">23</td>
174     <td align="center" valign="middle" bgcolor="#F1F4F8"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=198" target="_blank">observations</a></td>
175     <td valign="middle" bgcolor="#F1F4F8">adjoint</td>
176     <td valign="middle" bgcolor="#F1F4F8">data sets used</td>
177     </tr>
178     <tr>
179     <td width="97" valign="middle"><p>ECCO-GODAE</p></td>
180     <td width="36" valign="middle"><p align="center">4</p></td>
181     <td width="72" valign="middle"><p align="left">1992-2006</p></td>
182     <td width="97" valign="middle"><p>LLC</p></td>
183     <td width="36" valign="middle"><p align="center">50</p></td>
184     <td width="97" valign="middle"><p align="center">-</p></td>
185     <td width="97" valign="middle"><p>adjoint</p></td>
186     <td width="144" valign="middle"><p>development</p></td>
187     </tr>
188     <tr>
189     <td valign="middle" bgcolor="#F1F4F8">OCCA</td>
190     <td valign="middle" bgcolor="#F1F4F8">1</td>
191     <td valign="middle" bgcolor="#F1F4F8">2004-2006&nbsp;&nbsp; </td>
192     <td valign="middle" bgcolor="#F1F4F8">1 deg.</td>
193     <td align="center" valign="middle" bgcolor="#F1F4F8">50</td>
194     <td align="center" valign="middle" bgcolor="#F1F4F8"><a href="http://www.ecco-group.org/las/servlets/dataset?catitem=495" target="_blank">observations</a></td>
195     <td valign="middle" bgcolor="#F1F4F8">adjoint</td>
196     <td valign="middle" bgcolor="#F1F4F8">Atlas from annual solutions</td>
197 heimbach 1.1 </tr>
198     <tr>
199     <td valign="middle" width="97"><p>GECCO</p></td>
200     <td valign="middle" width="36"><p align="center">-</p></td>
201     <td valign="middle" width="72"><p align="left">1950-2000</p></td>
202     <td valign="middle" width="97"><p>1 deg.</p></td>
203     <td valign="middle" width="36"><p align="center">23</p></td>
204     <td valign="middle" width="97"><p align="center"><a href="http://www.ecco-group.org/ecco_srb@sdsc_las/servlets/dataset?catitem=183" target="_blank">23</a></p></td>
205     <td valign="middle" width="97"><p>adjoint</p></td>
206     <td valign="middle" width="144"><p>&nbsp;</p></td>
207     </tr>
208     <tr>
209     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>ECCO-JPL</p></td>
210 heimbach 1.4 <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">-</p></td>
211     <td width="72" valign="middle" bgcolor="#F1F4F8"><p align="left">1993-present</p></td>
212     <td width="97" valign="middle" bgcolor="#F1F4F8"><p>0.3-1 deg. telescopic</p></td>
213     <td width="36" valign="middle" bgcolor="#F1F4F8"><p align="center">46</p></td>
214 heimbach 1.1 <td width="97" valign="middle" bgcolor="#F1F4F8"><p align="center"><a href="http://ecco.jpl.nasa.gov/las/servlets/dataset" target="_blank">KF</a></p></td>
215 heimbach 1.4 <td width="97" valign="middle" bgcolor="#F1F4F8"><p>Kalman filter / RTS smoother</p></td>
216     <td width="144" valign="middle" bgcolor="#F1F4F8"><p>Near real-time analysis</p></td>
217 heimbach 1.1 </tr>
218     <tr>
219     <td valign="middle" width="97"><p>ECCO2</p></td>
220 heimbach 1.5 <td valign="middle" width="36"><p align="center">-</p></td>
221     <td valign="middle" width="72"><p align="left">1992-2002</p></td>
222     <td valign="middle" width="97"><p>Cubed-sphere (18 km)</p></td>
223 heimbach 1.1 <td valign="middle" width="36"><p align="center">50</p></td>
224     <td valign="middle" width="97"><p align="center"><a href="http://ecco2.jpl.nasa.gov/products/" target="_blank">GF</a></p></td>
225     <td valign="middle" width="97"><p>Green functions</p></td>
226     <td valign="middle" width="144"><p>&nbsp;</p></td>
227     </tr>
228     </tbody>
229     </table>
230     </td>
231     </tr>
232    
233     </table>
234     <p><BR />
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