<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>Dear friends,<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>I am a little confused by the setting of volume conservation in a regional simulation. <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>I had set up a regional model in Prydz Bay based on the spherical grid (usingSphericalPolarGrid=.TRUE.,). By following the suggestion in historical emails, the volume conservation can be set as follows:<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>V*DRF*DXG*hFacS</SPAN><SPAN style='FONT-FAMILY: ËÎÌå; mso-ascii-font-family: "Times New Roman"; mso-fareast-font-family: ËÎÌå; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"'>£»</SPAN><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>U*DRF*DYG*hFacW; Here, the volume calculated by these flux at the OBCS should be 0 to keep the volume conservation;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>Now, I want to set up a regional model based on the curvilinear grid (usingCurvilinearGrid=.TRUE.). As I see, the velocity in the curvilinear grid are rotated by the AngleCS/SN.data files. So, I am a little confused with what should I do with the velocity field applied at the OBCS. Should I rotate the velocity fields applied at the OBCS to keep the volume conservation in a curvilinear grid simulation. Or, Should I just apply the velocity filed as what I had did in the spherical grid simulation, and the model can adjust the velocity fields by itself.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>Cheers<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style='FONT-FAMILY: "Times New Roman","serif"'>Chengyan<o:p></o:p></SPAN></P>
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