Salvador,<br><br>I assume you are working with wrf output? if so you can specify it to output wind direction and wind speed at 10 m, wd10 and ws10. In the namelist.Arwpost that is provided there is a list of fields below the plot specification. just copy this and paste it above where it asks for fields and a more complete set of output variable (109 I believe) will be produced from the output. good luck.<br>
<br>andre<br><br><div class="gmail_quote">On Tue, Jun 14, 2011 at 7:10 PM, Salvador Salazar <span dir="ltr"><<a href="mailto:sal.salazar1@gmail.com">sal.salazar1@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi guys,<br>
<br>
Several questions have been asked about plotting wind direction in<br>
degrees at 10 meters, but the scripts I found so far are giving me<br>
funny results. Further, ARWpost doesn't seem to throw this variable<br>
out, although it does throw wind direction at the z levels. I'm<br>
posting the script below, hopefully someone can spot the error:<br>
<br>
'define dir=atan2(-u10,-v10)*180/3.141592654'<br>
'define dir=const(dir,1)*(const(maskout(dir,dir),0,-u10)+const(maskout(360+dir,-dir),0,-u10))'<br>
<br>
The problem with the above script is that it's telling me my model had<br>
Southern winds in the beginning, when I know it had North/Northeast<br>
winds from simply looking at the vectors u10 and v10. So, hopefully it<br>
just has a negative somewhere it doesn't belong or some other trivial<br>
error.<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Andre Pattantyus, Graduate Student Research Assistant<br>Marine and Environmental Systems, Florida Institute of Technology<br>150 W. University Blvd, Melbourne, FL 32901<br>
<br>Phone: (321) 674-8330 | Fax: (321) 674-7212 | Email: <a href="mailto:apattantyus2008@fit.edu">apattantyus2008@fit.edu</a><br>