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<p class="MsoNormal">Hi Paola,<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">The dimensional adjusted diffusivity for Release 3 is in <a href="https://ecco.jpl.nasa.gov/drive/files/Version4/Release3/other/adjusted/xx_diffkr.dim.adjusted.0000000059.data">
https://ecco.jpl.nasa.gov/drive/files/Version4/Release3/other/adjusted/xx_diffkr.dim.adjusted.0000000059.data</a>.<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal">Ou<o:p></o:p></p>
<p class="MsoNormal"><o:p>&nbsp;</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">&lt;ecco-support-bounces@mit.edu&gt; on behalf of Paola Cessi &lt;pcessi@ucsd.edu&gt;<br>
<b>Reply-To: </b>&quot;ECCO support list, wider membership&quot; &lt;ecco-support@mit.edu&gt;<br>
<b>Date: </b>Friday, July 23, 2021 at 5:06 PM<br>
<b>To: </b>&quot;ECCO support list, wider membership&quot; &lt;ecco-support@mit.edu&gt;<br>
<b>Subject: </b>Re: [ecco-support] [EXTERNAL] CORRECTION: How to get the total diffusivity in ECCOv4<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal">Hi Ou, <o:p></o:p></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal">I am having the same problem as Christopher, but with release 3: I downloaded&nbsp;<a href="https://ecco.jpl.nasa.gov/drive/files"><span style="color:#337AB7;background:white;text-decoration:none">files</span></a><span style="color:#333333;background:white">&nbsp;/&nbsp;</span><a href="https://ecco.jpl.nasa.gov/drive/files/Version4"><span style="color:#337AB7;background:white;text-decoration:none">Version4</span></a><span style="color:#333333;background:white">&nbsp;/&nbsp;</span><a href="https://ecco.jpl.nasa.gov/drive/files/Version4/Release3"><span style="color:#337AB7;background:white;text-decoration:none">Release3</span></a><span style="color:#333333;background:white">&nbsp;/&nbsp;</span><a href="https://ecco.jpl.nasa.gov/drive/files/Version4/Release3/input_init"><span style="color:#337AB7;background:white;text-decoration:none">input_init</span></a><span style="color:#333333;background:white">&nbsp;/</span><a href="https://ecco.jpl.nasa.gov/drive/files/Version4/Release3/input_init/xx_diffkr.0000000059.data"><span style="color:#337AB7;text-decoration:none">xx_diffkr.0000000059.data</span></a><span style="color:#333333;background:white">,
 and the range of values is [-0.6 0.4]: too large to be vertical diffusivities (negative?). Can you please point me to the diffusivity files for release3?</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#333333;background:white">Many thanks,</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black">Paola<br>
<br>
</span><span style="font-size:9.0pt;color:black">--------------------------------------------------------------------------------------------<br>
Paola Cessi &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;Tel: &#43;1 858 534 0622&nbsp;<br>
Scripps Institution of Oceanography &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Fax: &#43;1 858 534 8045<br>
9500 Gilman Drive #0213 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="apple-converted-space">&nbsp;</span><a href="mailto:pcessi@ucsd.edu">e-mail: pcessi@ucsd.edu</a>&nbsp;<br>
La Jolla, CA 92093-0213 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Web: <a href="https://urldefense.us/v3/__http:/pordlabs.ucsd.edu/pcessi__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWeOOMQ2Z8$">
http://pordlabs.ucsd.edu/pcessi</a><br>
USA &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br>
<br>
Delivery address (Fed-Ex, DHL, UPS, etc.):<br>
University of California San Diego<br>
Keck Center - Room 366<br>
8851 Shellback Way<br>
La Jolla, CA 92093-0213, USA</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal">On Jun 4, 2021, at 11:40 AM, Wang, Ou (US 329B) &lt;<a href="mailto:ou.wang@jpl.nasa.gov">ou.wang@jpl.nasa.gov</a>&gt; wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal">Hi Christopher,<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">One correction to the alternative way I mentioned;<o:p></o:p></p>
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<p class="MsoNormal">Alternatively, you can calculate it by summing up<span class="apple-converted-space">&nbsp;</span><b>the first guess of a constant 1e-5 m^2/s (not<span class="apple-converted-space">&nbsp;</span>total_diffkr_r009bit11.bin)</b>and xx_diffkr.dim.0000000129.data.<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">See Forget et al. (2015; doi:10.5194/gmd-8-3071-2015), Table 1 for the first guess of the mixing parameters.<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">Ou<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt">From:<span class="apple-converted-space">&nbsp;</span></span></b><span style="font-size:12.0pt">&lt;<a href="mailto:ecco-support-bounces@mit.edu">ecco-support-bounces@mit.edu</a>&gt; on behalf of &quot;Wang, Ou (US 329B)&quot;
 &lt;<a href="mailto:ou.wang@jpl.nasa.gov">ou.wang@jpl.nasa.gov</a>&gt;<br>
<b>Reply-To:<span class="apple-converted-space">&nbsp;</span></b>&quot;ECCO support list, wider membership&quot; &lt;<a href="mailto:ecco-support@mit.edu">ecco-support@mit.edu</a>&gt;<br>
<b>Date:<span class="apple-converted-space">&nbsp;</span></b>Friday, June 4, 2021 at 9:17 AM<br>
<b>To:<span class="apple-converted-space">&nbsp;</span></b>&quot;ECCO support list, wider membership&quot; &lt;<a href="mailto:ecco-support@mit.edu">ecco-support@mit.edu</a>&gt;<br>
<b>Subject:<span class="apple-converted-space">&nbsp;</span></b>Re: [ecco-support] [EXTERNAL] How to get the total diffusivity in ECCOv4</span><o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">Hi Christopher,<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">PO.DAAC is now hosting V4r4’s files. You can get V4r4’s dimensional vertical diffusivity field (first guess plus the control adjustment) from PO.DAAC at<span class="apple-converted-space">&nbsp;</span><a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.us_v3_-5F-5Fhttps-3A_archive.podaac.earthdata.nasa.gov_podaac-2Dops-2Dcumulus-2Dprotected_ECCO-5FL4-5FOCEAN-5F3D-5FMIX-5FCOEFFS-5FLLC0090GRID-5FV4R4_OCEAN-5F3D-5FMIXING-5FCOEFFS-5FECCO-5FV4r4-5Fnative-5Fllc0090.nc-5F-5F-3B-21-21PvBDto6Hs4WbVuu7-21bO3-2DZfkkeOEujVIhL2nn3AEb9q1Zl86CHb1ZTrYDdah4HPKuSZ-5FF2v6ZPAv3JA9Giy4-24&amp;d=DwMGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=FPXRnuyQe_XQBb92q8_lgGGF7xNgSrdEC2S7NliIZnw&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWeNAyI_LY$">https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-protected/ECCO_L4_OCEAN_3D_MIX_COEFFS_LLC0090GRID_V4R4/OCEAN_3D_MIXING_COEFFS_ECCO_V4r4_native_llc0090.nc</a>.
 The variable is called “DIFFKR” in the NetCDF file. Alternatively, you can calculate it by summing up<span class="apple-converted-space">&nbsp;</span>total_diffkr_r009bit11.bin and xx_diffkr.dim.0000000129.data that are available on ECCO Drive at<span class="apple-converted-space">&nbsp;</span><a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__ecco.jpl.nasa.gov_drive_files_Version4_Release4_input-5Finit_total-5Fdiffkr-5Fr009bit11.bin&amp;d=DwQGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=At_qtxweGPSK3iWrt0MTdwFZh-Qh5o8DZk6kxGJy3qc&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWepw7u788$">https://ecco.jpl.nasa.gov/drive/files/Version4/Release4/input_init/total_diffkr_r009bit11.bin</a><span class="apple-converted-space">&nbsp;</span>and<a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__ecco.jpl.nasa.gov_drive_files_Version4_Release4_other_adjustments_xx-5Fdiffkr.dim.0000000129.data&amp;d=DwMGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=PoZK-6xokNwmLvGaaEYxY1OlakgA_2PpUzEKmntKQwA&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWeP4JWXwo$">https://ecco.jpl.nasa.gov/drive/files/Version4/Release4/other/adjustments/xx_diffkr.dim.0000000129.data</a>.<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">The description about<span class="apple-converted-space">&nbsp;</span>total_kapredi_r009bit11.bin in the ECCOv4 Python tutorial is incorrect and will be corrected. The field in total_kapredi_r009bit11.bin is the Redi parameter from Release<span class="apple-converted-space">&nbsp;</span><span style="color:red">1</span>,
 not the adjusted Redi parameter from Release 4.<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">Ou<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt">From:<span class="apple-converted-space">&nbsp;</span></span></b><span style="font-size:12.0pt">&lt;<a href="mailto:ecco-support-bounces@mit.edu">ecco-support-bounces@mit.edu</a>&gt; on behalf of Christopher Wolfe
 &lt;<a href="mailto:christopher.wolfe@stonybrook.edu">christopher.wolfe@stonybrook.edu</a>&gt;<br>
<b>Reply-To:<span class="apple-converted-space">&nbsp;</span></b>&quot;ECCO support list, wider membership&quot; &lt;<a href="mailto:ecco-support@mit.edu">ecco-support@mit.edu</a>&gt;<br>
<b>Date:<span class="apple-converted-space">&nbsp;</span></b>Friday, June 4, 2021 at 6:44 AM<br>
<b>To:<span class="apple-converted-space">&nbsp;</span></b>&quot;<a href="mailto:ecco-support@mit.edu">ecco-support@mit.edu</a>&quot; &lt;<a href="mailto:ecco-support@mit.edu">ecco-support@mit.edu</a>&gt;<br>
<b>Subject:<span class="apple-converted-space">&nbsp;</span></b>[EXTERNAL] [ecco-support] How to get the total diffusivity in ECCOv4</span><o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">Hi all:<span class="apple-converted-space">&nbsp;</span><o:p></o:p></p>
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<p class="MsoNormal">I’m trying to figure out what the vertical diffusivity field in ECCOv4r4 is, but I’m a little confused about which input file actually contains this data.&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">The ECCOv4 python tutorial (at<span class="apple-converted-space">&nbsp;</span><a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.us_v3_-5F-5Fhttps-3A_ecco-2Dv4-2Dpython-2Dtutorial.readthedocs.io_ECCO-5Fv4-5FLoading-5FLLC-5Fcompact-5Fbinary-5Ffiles.html-2AExample-2D3-3A-2DLoad-2Da-2D3D-2D-27compact-27-2Dllc-2Dbinary-2Dfile-2Dwith-2D3rd-2Ddimension-2D-3D-2DDepth-5F-5F-3BIw-21-21PvBDto6Hs4WbVuu7-21eGOlWbFIVdKaXoIQQEcSSqRPb2UW2kabBqJXw8Hdg5AizGFceCu2pSW1rdXfRM0vvIA-24&amp;d=DwMGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=fxELJ2y1vojHpoBCo-jcZf5rct4ipSYukwbcHp3nRWM&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWeUNE8dwE$">https://ecco-v4-python-tutorial.readthedocs.io/ECCO_v4_Loading_LLC_compact_binary_files.html#Example-3:-Load-a-3D-'compact'-llc-binary-file-with-3rd-dimension-=-Depth</a>)
 says that&nbsp;total_kapredi_r009bit11.bin is the &quot;adjusted GM redi parameter (first guess &#43; adjustments)”, which implies that total_diffkr_r009bit11.bin should be the adjusted diffusivity.&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">&nbsp;<o:p></o:p></p>
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<p class="MsoNormal">On the other hand, the README at&nbsp;<a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__ecco.jpl.nasa.gov_drive_files_Version4_Release4_input-5Finit_README&amp;d=DwMGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=Y5km8rLOIAScTdlOx-H4gujN5dag4QnliKlbo22oRnY&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWeWFHJfMg$">https://ecco.jpl.nasa.gov/drive/files/Version4/Release4/input_init/README</a>&nbsp;says
 that&nbsp;&nbsp;total_diffkr_r009bit11.bin is the&nbsp;&quot;vert. diff. of release 1 (this field plus xx is the total)”, which means that I should add&nbsp;xx_diffkr.0000000129.data to this to get the full diffusivity. However, the values in this file are order 1, so adding it to&nbsp;total_diffkr_r009bit11
 would produce&nbsp;diffusivities far outside the expected range.<o:p></o:p></p>
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<p class="MsoNormal">The gencost documentation of the ctrl package (<a href="https://urldefense.us/v3/__https:/urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.us_v3_-5F-5Fhttps-3A_mitgcm.readthedocs.io_en_latest_ocean-5Fstate-5Fest_ocean-5Fstate-5Fest.html-2Actrl-2Dmodel-2Dparameter-2Dadjustment-2Dcapability-5F-5F-3BIw-21-21PvBDto6Hs4WbVuu7-21eGOlWbFIVdKaXoIQQEcSSqRPb2UW2kabBqJXw8Hdg5AizGFceCu2pSW1rdXfrjEs71w-24&amp;d=DwMGaQ&amp;c=-35OiAkTchMrZOngvJPOeA&amp;r=YvEcUc3iPS8v6LXnkXPI-w&amp;m=6Ilpubv4qn3OD41-8yhyk6uu5j1XJQRLMfnf7OSEpRQ&amp;s=LhszeqkXgaIfNrgQxtvATYOLrdq9U9ivph736gNqDmA&amp;e=__;!!PvBDto6Hs4WbVuu7!fsxdH6il0cs8gPy2j4KkEKbm6gA3GeQz5DpxJVmVJfeEihLVQgSFhGROuiWe_2HTmR0$">https://mitgcm.readthedocs.io/en/latest/ocean_state_est/ocean_state_est.html#ctrl-model-parameter-adjustment-capability</a>)
 says that the xx adjustments are&nbsp;non-dimensional and need to be scaled by one over the square root of the weights, which are in&nbsp;r2.wdiffkrFldv2.data. Using this produces adjustments on the order of 1e-6 to 1e-5, which seems about right. However, the data.ctrl
 namelist also specifies WC01 smoothing and some thresholding. Do these need to be applied as well?<o:p></o:p></p>
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<p class="MsoNormal">Is the best way to get this data simply to run the model for a bit and have it dump diffkr? It would be convenient to be able to calculate these quantities without having to run the model, however.<o:p></o:p></p>
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<p class="MsoNormal">Thanks in advance for your advise,<o:p></o:p></p>
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<p class="MsoNormal">Christopher<o:p></o:p></p>
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<p class="MsoNormal">----------------------------------------------------------------------------<br>
Christopher L. Pitt Wolfe<br>
Associate Professor (Physical Oceanography)<br>
School of Marine and Atmospheric&nbsp;Sciences<br>
Stony Brook University<br>
<a href="mailto:christopher.wolfe@stonybrook.edu">christopher.wolfe@stonybrook.edu</a>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;631-632-3152<br>
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