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<p class="MsoNormal"><span lang="EN-US">Dear MITgcm developers,</span></p>
<p class="MsoNormal"><span lang="EN-US">I am trying to setup an idealized 2D experiment with obcs package (e.g, Nx*Ny*Nr=500*1*30).</span></p>
<p class="MsoNormal"><span lang="EN-US">The idea is that I want to give a tidal component through the west bound as OBWAmFile (Am=0.1m/s) and OBWPhFile (Ph=0).</span></p>
<p class="MsoNormal"><span lang="EN-US">What I changed to codes are:</span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">(1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>“<span lang="EN-US">#define ALLOW_OBCS_TIDES</span>”<span lang="EN-US"> in OBCS_OPTIONS.h</span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">(2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>“<span lang="EN-US">tidalComponents = 1</span>”<span lang="EN-US"> in OBCS_PARAMS.h</span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">(3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>“<span lang="EN-US">#define NONLIN_FRSURF</span>” <span lang="EN-US">
in CPP_OPTIONS.h</span></p>
<p class="MsoNormal"><span lang="EN-US">Data.obcs:</span></p>
<p class="MsoNormal"><span lang="EN-US">‘’’</span></p>
<p class="MsoNormal"><span lang="EN-US">&OBCS_PARM01</span></p>
<p class="MsoNormal"><span lang="EN-US">OB_Ieast=-1,</span></p>
<p class="MsoNormal"><span lang="EN-US">OB_Iwest=1,</span></p>
<p class="MsoNormal"><span lang="EN-US">OBWAmFile='OBWAm.bin',</span></p>
<p class="MsoNormal"><span lang="EN-US">OBWPhFile='OBWPh.bin',</span></p>
<p class="MsoNormal"><span lang="EN-US">tidalPeriod=43200.0,</span></p>
<p class="MsoNormal"><span lang="EN-US">&</span></p>
<p class="MsoNormal"><span lang="EN-US">‘’’</span></p>
<p class="MsoNormal"><span lang="EN-US">However, tidal signals are not found in the model result and the west and east two colomns of u are constant zeros.</span></p>
<p class="MsoNormal"><span lang="EN-US">No errors regarding to the I/O are reported, so I think the files I input are correct.</span></p>
<p class="MsoNormal"><span lang="EN-US">Is there any other changes I should do to the obcs? I.e., should I add sponge layer at the west bound and Orlansky condition at the east?</span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards,</span></p>
<p class="MsoNormal"><span lang="EN-US">Pengyang</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">----------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">SONG Pengyang</span><span style="color:black">（宋朋洋）</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">PhD candidate in Paleoclimate Dynamics<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Department of Climate Sciences<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Alfred Wegener Institute,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Helmholtz Centre for Polar and Marine Research<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Address: Bussestr. 24, 27570 Bremerhaven, Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Tel: (+49) 471 4831 1811<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black">Mobile: (+49) 17667211481 (DE)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:black"> (+86) 15762264643 (CN)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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