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<p class="MsoNormal">Hello Caroline,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If I understand you correctly, you would like to obtain mean dynamic topography (MDT) to use in your investigation of marine geoid in the Indian Ocean. I suggest you use ECCO version 4 release 3 output available at
<a href="ftp://ecco.jpl.nasa.gov/Version4/Release3/">ftp://ecco.jpl.nasa.gov/Version4/Release3/</a>.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In particular, I think for your purposes, you can use interpolated monthly sea surface height fields, available at
<a href="ftp://ecco.jpl.nasa.gov/Version4/Release3/interp_monthly/">ftp://ecco.jpl.nasa.gov/Version4/Release3/interp_monthly/</a>. The fields are available for 1992-2015 and you can average them in time to compute an MDT for whatever period is relevant for
you. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hope this helps.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier",serif;color:black">Rui M. Ponte</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier",serif;color:black">Atmospheric and Environmental Research, Inc.</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier",serif;color:black">131 Hartwell Avenue</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier",serif;color:black">Lexington, MA 02421-3126 USA</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier",serif;color:black">781-761-2288 | www.aer.com</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black"><ecco-support-bounces@mit.edu> on behalf of Caroline Meela <carolinemeela@gmail.com><br>
<b>Reply-To: </b>"ECCO support list, wider membership" <ecco-support@mit.edu><br>
<b>Date: </b>Saturday, December 9, 2017 at 1:57 PM<br>
<b>To: </b>"ecco-support@mit.edu" <ecco-support@mit.edu><br>
<b>Subject: </b>[ecco-support] REQUEST FOR MEAN SEA SURFACE HEIGHT(MSSH) AND MEAN DYNAMIC TOPOGRAPHY(MDT) DATA<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am Caroline Meela, a student from Ardhi University in Dar-es-salaam,Tanzania. I'm conducting research on the assessment of Marine Geoid along Indian Ocean in Dar-es-salaam using data from different Mean sea surface height(MSSH) and Mean
dynamic topography(MDT) models in comparison with Tanzania Geoid model.I hereby request your help in access of these MSSH and MDT data .I'm humbly looking forward to here from you soon.<o:p></o:p></p>
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