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<p class="MsoNormal">Hi Ezequiel,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For ECCO v4r4 <a href="https://ecco.jpl.nasa.gov/drive/files/Version4/Release4/nctiles_monthly/">
https://ecco.jpl.nasa.gov/drive/files/Version4/Release4/nctiles_monthly/</a>, the OBP fields include the contributions from atmospheric pressure. There are two ocean bottom fields: OBPNOPAB and OBP. OBPNOPAB does *<b>not</b>* have the contribution of the global
mean atmospheric pressure, while OBP does. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">ECCO v4r3 and ECCO2 do *<b>not</b>* have atmospheric pressure forcing, and therefore the ocean bottom pressure field has *<b>no</b>* contribution from atmospheric pressure.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Ou Wang <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 Ezequiel Darío Antokoletz <ezequiel.antokoletz@gmail.com><br>
<b>Reply-To: </b>"ECCO support list, wider membership" <ecco-support@mit.edu><br>
<b>Date: </b>Friday, February 21, 2020 at 9:46 AM<br>
<b>To: </b>"ecco-support@mit.edu" <ecco-support@mit.edu><br>
<b>Subject: </b>[EXTERNAL] [ecco-support] Question about ECCO and ECCO2<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">Dear Sir/Madam, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">My name is Ezequiel D. Antokoletz. I am an Argentinean PhD student on Geophysics working on loading effects on gravity at the Argentinean-German Geodetic Observatory (AGGO).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am writing you in order to ask about the Ocean Bottom Pressure (OBP) field obtained from ECCO and ECCO2 runs. As I understand, OBP is the total pressure at the sea-floor, e.g. the sum of water and air columns. This last comes from the
forcing field NCEP. I wanted to know if this is what OBP fields available to download are or if it is only the ocean contribution to OBP (NCP air pressure field subtracted).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best regards and thank you in advance,<o:p></o:p></p>
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<p class="MsoNormal">Ezequiel D. Antokoletz.<o:p></o:p></p>
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal">Geof. Ezequiel D. Antokoletz<o:p></o:p></p>
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<p class="MsoNormal">Dpto. de Gravimetría<o:p></o:p></p>
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<p class="MsoNormal">Facultad de Ciencias Astronómicas y Geofísicas<o:p></o:p></p>
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<p class="MsoNormal">Universidad Nacional de La Plata<o:p></o:p></p>
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