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Hi everyone,</div>
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I figured out the way to do it. I am no sure if anyone else wants to impose this kind of boundary, so I will leave a short in introduction here. After filling the code with print comments I found out that the main issue was in obcs_check.F. It seems that if
a boundary it is located in a corner, this file thinks that there is two open boundaries in the same cell grid. </div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
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<div style=""><span style="background-color: rgb(255, 255, 255);"><font face="segoe ui, segoe ui web (west european), segoe ui, -apple-system, blinkmacsystemfont, roboto, helvetica neue, sans-serif"><span style="font-size: 11pt;">So here we have a open boundary.
The empty and the filled squares are boundary and land grid points, respectively. The + represents the open boundary line on the model. Note that the point (1,2) is not a open boundary point, therefore we have 3 grid cell in row 1 and 1 grid cell in row 2
that are open boundary points. Among these points the model will be confused at the point (2,2) because it will think that there is a south and west boundary point at the same time. This will happen even if you specify the OB_Iwest=0. For some reason the
model is still thinking that there is a </span><span style="font-size: 14.6667px;">western</span><span style="font-size: 11pt;"> open boundary there. </span></font></span></div>
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<br>
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<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<u>////////////|+++++++++</u></div>
<div class="BodyFragment">
<div class="PlainText" style="font-size: 11pt;">/////////////| |+</div>
<div class="PlainText" style="font-size: 11pt;">/////////////| |+ j=2</div>
<div class="PlainText" style=""><span style="font-size: 11pt;"><u>/////////////|</u> |+</span></div>
<div class="PlainText" style=""><font color="#000000" face="Calibri, Helvetica, sans-serif"><u>////////////| </u></font><span style="font-size: 11pt;">|</span><u style="font-size: 11pt;">+++++++++++++++++++++++</u></div>
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<div style="margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255);">
/////////////|/////////////|<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important">
|<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important"> |<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important">
|</span></span></span></div>
<div style="margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255);">
<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;">/////////////|/////////////|</span><span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;">
|<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;"> |<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;">
| j=1</span></span></span><br>
</div>
<div style="margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255);">
<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important"><span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important"></span></span></div>
<div style="margin: 0px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255);">
/////////////|/////////////|<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important">
|<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important"> |<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255); display: inline !important">
| </span></span></span><br>
<u>/////////////|/////////////|<font color="#000000" face="Calibri, Helvetica, sans-serif" style="font-size: 16px; background-color: rgb(255, 255, 255)"><u> </u></font><span style="margin: 0px; font-size: 11pt; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255)">|</span><font color="#000000" face="Calibri, Helvetica, sans-serif" style="font-size: 16px; background-color: rgb(255, 255, 255)"><u>
</u></font><span style="margin: 0px; font-size: 11pt; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255)">|<font color="#000000" face="Calibri, Helvetica, sans-serif" style="font-size: 16px; background-color: rgb(255, 255, 255)"><u>
</u></font><span style="margin: 0px; font-size: 11pt; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; background-color: rgb(255, 255, 255)">|</span></span></u></div>
i=1 i=2 i=3 i=4 i=5</div>
<div class="PlainText" style="font-size: 11pt;"><u><br>
</u></div>
<div class="PlainText" style="font-size: 11pt;">Knowing this, the data.obcs have to be specified in this way</div>
<div class="PlainText" style="font-size: 11pt;"><br>
</div>
<div class="PlainText" style="font-size: 11pt;"><span>&OBCS_PARM01</span>
<div> OB_Iwest=1*0,1*2,<br>
</div>
<div> OB_Jsouth=1*0,1*2,3*1,<br>
</div>
<div><br>
</div>
<div>Kind regards,</div>
<div><br>
</div>
<div>PS: I could not find anything in the manual, so I am no sure if it worth to write a small section about this on the website.</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div class="PlainText" style="font-size: 11pt;">Today's Topics:<br>
<br>
1. Unstructured open boundaries (Estanislao Gavilan Pascual-Ahuir)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 18 Sep 2019 02:34:04 +0000<br>
From: Estanislao Gavilan Pascual-Ahuir <dramauh@hotmail.com><br>
To: "mitgcm-support@mitgcm.org" <mitgcm-support@mitgcm.org><br>
Subject: [MITgcm-support] Unstructured open boundaries<br>
Message-ID:<br>
<DB8PR04MB700217A224EAAA4996C889F8A98E0@DB8PR04MB7002.eurprd04.prod.outlook.com><br>
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Content-Type: text/plain; charset="iso-8859-1"<br>
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Dear Community,<br>
<br>
A few weeks ago I found a post in our email list about this but I cannot find it again. I would like to open boundaries in different rows.. For example I was thinking to do this but it is wrong.. As you can read I want to open 19 points in middle of the first
and last row. Then I want to open 3 points and then other three points in the second row and the before the last row. I think it can be done but I am no doing something correctly. The forcing files are a single row with 81 points where your can find the specific
values from the 29th to the 53rd column. Thanks in advance for your help.<br>
<br>
Kind regards,<br>
<br>
Estanislao<br>
<br>
# Open-boundaries<br>
&OBCS_PARM01<br>
OBCSfixTopo=.FALSE.,<br>
OB_Ieast=0,<br>
OB_Iwest=0,<br>
OB_Jnorth=31*0,19*-1,31*0,<br>
OB_Jnorth=28*0,3*80,19*0,3*80,28*0,<br>
OB_Jsouth=28*0,3*2,19*0,3*2,28*0,<br>
OB_Jsouth=31*0,19*1,31*0,<br>
useOBCSprescribe = .TRUE.,<br>
OBNvFile = 'OBzonaloutV05.bin',<br>
OBSvFile = 'OBzonalinV05.bin',<br>
OBNuFile = 'OBmeridoutU05.bin',<br>
OBSuFile = 'OBmeridinU05.bin',<br>
<br>
<br>
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