mercator projection is NOT ROTATED.<br>You'd better read some textbooks on map projection or NWP basics.<br><br><div class="gmail_quote">On Tue, Aug 17, 2010 at 11:14 PM, <span dir="ltr"><<a href="mailto:wrf-users-request@ucar.edu">wrf-users-request@ucar.edu</a>></span> wrote:<br>
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Today's Topics:<br>
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1. Query Reg Surface wind speed and direction from WR F (Geeta Geeta)<br>
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Message: 1<br>
Date: Mon, 16 Aug 2010 07:31:54 +0000<br>
From: Geeta Geeta <<a href="mailto:geeta124@hotmail.com">geeta124@hotmail.com</a>><br>
Subject: [Wrf-users] Query Reg Surface wind speed and direction from<br>
WR F<br>
To: wrf users group <<a href="mailto:wrf-users@ucar.edu">wrf-users@ucar.edu</a>><br>
Message-ID: <BLU152-w22758D9B5136DAA49DA4688A9B0@phx.gbl><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
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<br>
Dear WRF Users.<br>
This is Query Reg Surface wind speed and direction from WRF.<br>
I am getting the U10 and V10 (the ROTATED wind components) as one of the diagnostics from WRF. I have used mercator projection for the domain.<br>
Also,<br>
ws10 and wd10, are the Wind Speed (m s-1) and Direction (Degrees) at 10<br>
M is also available as one of the outputs. What is the Difference<br>
between the two.<br>
<br>
Pls clarify how to compute the actual wind speed and direction at a particular point.<br>
<br>
I have plotted all the 3 variables ie, the U10 and V10, and wd10 (attatched wind.gif).<br>
ga-> d skip(U10,2,2);V10<br>
ga-> c<br>
ga-> set cint 20<br>
cint = 20<br>
ga-> d wd10<br>
Contouring: 20 to 340 interval 20<br>
ga-> d skip(U10,2,2);V10<br>
ga-> printim wind.gif<br>
<br>
I am unable to find any significant difference between the U10;V10 and the ws10 and wd10.<br>
Pls clarify this doubt.<br>
geeta<br>
<br>
<br>
<br>
<br>
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End of Wrf-users Digest, Vol 72, Issue 14<br>
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</blockquote></div><br>