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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>
36 <td width="94" height="24" align="center" valign="middle" bgcolor="#729BBA"><a href="products.htm" class="topnavhi"> products</a></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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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>
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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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78 <td height="636" bgcolor="#F3F2ED">&nbsp;</td>
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87 </tr>
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 <LI>Monthly, 10-day, daily or 12-hourly ocean model state, adjusted forcing fields and mixing coefficients
97 </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 <td width="97" height="23" valign="middle" bgcolor="#F3F2ED"><p>Product </p></td>
108 <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 <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 <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 <td valign="middle" width="144"><p>experimental (sea-ice, bulk formulae)</p></td>
167 </tr>
168 <tr>
169 <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">N/A</a></td>
195 <td valign="middle" bgcolor="#F1F4F8">adjoint</td>
196 <td valign="middle" bgcolor="#F1F4F8">Atlas from annual solutions</td>
197 </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 <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 <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 <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 </tr>
218 <tr>
219 <td valign="middle" width="97"><p>ECCO2</p></td>
220 <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 <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
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