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<p class="MsoNormal"><span style="font-size:11.0pt">Hello Mingshun,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The sign convention for the zonal wind stress in ECCO/ECCOv4/Release3/input_forcing is positive for westward, whereas in ECCO/ECCOv4/Release3/nctiles_monthly/oceTAUE, it is positive for eastward. The former,
being opposite to the traditional convention in the latter, is used due to historical reasons.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ou Wang<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">ecco-support <ecco-support-bounces@mit.edu> on behalf of
</span><span style="font-size:12.0pt;font-family:"MS Gothic";color:black">樊明</span><span style="font-size:12.0pt;font-family:"PingFang TC",sans-serif;color:black">顺</span><span style="font-size:12.0pt;color:black"> <12234017@zju.edu.cn><br>
<b>Date: </b>Sunday, April 21, 2024 at 6:03</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:12.0pt;color:black">AM<br>
<b>To: </b>ecco-support@mit.edu <ecco-support@mit.edu><br>
<b>Subject: </b>[EXTERNAL] [ecco-support] Questions about ECCOv4r3<o:p></o:p></span></p>
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<p><span style="font-size:14.0pt;font-family:"Times New Roman",serif">Dear Sir/Madam,</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif">My name is Mingshun Fan, and I am a doctoral student from Zhejiang University, China. I am reaching out to you via email to inquire about a question regarding the
wind stress data of ECCOv4r3.</span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif">I have processed the zonal wind stress data, which is available every 6 hours, into monthly averaged data (shown on the right side of the attached figure) from
the directory ECCO/ECCOv4/Release3/input_forcing/. I intend to compare it with the pre-existing monthly averaged zonal wind stress data (shown on the left side of the attached figure) from the directory ECCO/ECCOv4/Release3/nctiles_monthly/oceTAUE/. However,
I noticed that there is a difference of a positive/negative sign between the two datasets. Based on my existing knowledge of oceanography, the zonal wind stress in this region should be positive (eastward). Could you please help me understand why the sign
in the right figure is opposite? I believe this might be a minor issue, but I am struggling to identify the reason. Therefore, I am reaching out to seek your advice.</span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif">Thank you very much. I am looking forward to your reply.</span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif"><img width="821" height="268" style="width:8.552in;height:2.7916in" id="_x0000_i1025" src="cid:6bb1f7ec$1$18ee624c8ea$Coremail$12234017$zju.edu.cn"></span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt;font-family:DengXian"><o:p> </o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif">Best,</span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p style="text-align:justify"><span style="font-size:14.0pt;font-family:"Times New Roman",serif">Mingshun Fan</span><span style="font-size:10.5pt;font-family:DengXian"><o:p></o:p></span></p>
<p><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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