<div dir="ltr">Hi Jody,<div>Thanks for coming back to me. </div><div>To begin with, I want to understand (in detail) what are the default OBCs being imposed when I run the internal wave verification with default settings.</div><div>In particular, the docs in section 8.3.1.4.1 say that a detailed calculation is used to set OBCs for the IW verification in "obcs_calc.f". I want to understand what those same OBCs are.</div><div><br></div><div>Taking your example of a wide sponge, I'm not clear on the notation </div><div><br></div><div>L ~ mode -1*wavelength </div><div><br></div><div>But nonetheless, how would I set that using a matlab or python snippet?</div><div>Best</div><div>Jeremy </div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 25 May 2021 at 17:16, Jody Klymak <<a href="mailto:jklymak@uvic.ca">jklymak@uvic.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Hi Jeremy,<div><br></div><div>It would be helpful to know what you are trying to simulate. Overall, I have found internal waves are best set using a wide sponge (L\sim mode-1 wavelength) either with obcs or with rbcs packages.</div><div><br></div><div>Cheers, Jody <br><div><br><blockquote type="cite"><div>On 25 May 2021, at 00:14, Jeremy Miller <<a href="mailto:jeremysharonmiller@gmail.com" target="_blank">jeremysharonmiller@gmail.com</a>> wrote:</div><br><div><div dir="ltr">Dear MITgcm forum,<div><br></div><div>I'm sorry for sending multiple emails. The above error I did resolve. I would still be happy to learn what the default OBCs are, and how to custom create OBCs.</div><div>Best</div><div>Jeremy</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 25 May 2021 at 08:50, Jeremy Miller <<a href="mailto:jeremysharonmiller@gmail.com" target="_blank">jeremysharonmiller@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear MITgcm forum,<div><br></div><div>Hope everyone's well. Following yesterday's email and reading Section 8.3.1.4.1 of the docs I attempted to change the file data.obcs myself, because I wanted to move from the default grid to Nx ✕ Ny = 120 ✕ 60 . Accordingly I changed data.obcs to</div><div><br></div><div># Open-boundaries<br> &OBCS_PARM01<br> OB_Ieast = 60*-1,<br> OB_Iwest = 60*1,<br> OB_Jnorth = 120*-1,<br> OB_Jsouth = 120*1,<br> &<br></div><div><br></div><div>After running I get this error:</div><div><br></div><div>At line 2509 of file obcs_readparms.f (unit = 11, file = 'scratch1.000000000')<br>Fortran runtime error: Cannot match namelist object name c<br></div><div><br></div><div>Please, could you advise.</div><div><br></div><div>Best</div><div>Jeremy</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 24 May 2021 at 13:27, Jeremy Miller <<a href="mailto:jeremysharonmiller@gmail.com" target="_blank">jeremysharonmiller@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear MITgcm forum,<div><br></div><div>Hope all are well. I want to input open boundary conditions (OBCs) for the internal wave verification. I have a few questions.</div><div><br></div><div>1. What are the default OBCs ? </div><div>2. How does one change the OBCs? I was reading through obcs_calc.F and I found it somewhat difficult to understand (not coming with a Fortran background).</div><div>3. Is it possible to output the OBCs from a short python snippet? </div><div><br></div><div>Best</div><div>Jeremy Miller</div><div><br></div><div><br></div><div><br></div></div>
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<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="border-collapse:separate;border-spacing:0px;color:rgb(0,0,0);font-family:"Lucida Sans Typewriter";font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div style="overflow-wrap: break-word;"><span style="border-collapse:separate;border-spacing:0px;color:rgb(0,0,0);font-family:"Lucida Sans Typewriter";font-size:12px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>--</div><div>Jody Klymak </div><div><a href="http://ocean-physics.seos.uvic.ca/~jklymak/" target="_blank">http://ocean-physics.seos.uvic.ca/~jklymak/</a></div><div><br></div><div><br></div><br></span></div></span></div><br><br>
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