<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;" dir="ltr">
<p>Hi,</p>
<p><br>
</p>
<p>I am using OBCS package to send in a mode-1 internal wave from the left/western boundary, and I want to add a sponge layer only at the right/eastern boundary. I have used rigid lid for my surface/northern boundary and no slip for the bottom/southern boundary.
I have set useOBCSsponge=.TRUE. in data.obcs.</p>
<p>My questions are about setting the sponge layer.</p>
<p><span style="font-size: 12pt;">1) </span></p>
<p><span style="font-size: 12pt;">There is a routine "obcs_sponge.F" under pkg/obcs. Is this the
<b>only</b> routine I need to add in to my model code for the sponge layer?</span><br>
</p>
<p><span style="font-size: 12pt;">2)</span></p>
<p><span style="font-size: 12pt;">Since I only need sponge layer for the eastern boundary, if I erase everything about the other 3 boundaries in the obcs_sponge.F, will it work?</span></p>
<p><span style="font-size: 12pt;"></span></p>
<p><span style="font-size: 12pt;">3)</span></p>
<p><span style="font-size: 12pt;">I would like to understand the theory behind this sponge layer. Can you provide a reference/paper etc. that the code in </span><span style="font-size: 12pt;">obcs_sponge.F is based on?</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Thanks a lot</span></p>
<p><span style="font-size: 12pt;">Yangxin</span></p>
</div>
</body>
</html>