<div dir="ltr">My ctl made made with g2ctl is different than what you have. I'm not having any issues with the winds.<div><br></div><div><br></div><div><div>pdef 1799 1059 lccr 21.138000 -122.72 1 1 38.500000 38.500000 -97.5 3000.000000 3000.000000</div><div>xdef 2503 linear -134.096127 0.0292401642786411</div><div>ydef 1155 linear 21.140671 0.0272727272727273</div></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Mar 23, 2017 at 5:05 AM, Sam Wilson <span dir="ltr"><<a href="mailto:sam@surfline.com" target="_blank">sam@surfline.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi all,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">After the recent upgrade of the high resolution NAM conus nest, the wind direction in the wind plots I make appears to be wrong.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I also plot wind data from the NAM 12km data – below are the PDEF, XDEF, and YDEF lines from a NAM 12km ctl file and a NAM conus nest ctl file:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">NAM 12km:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">pdef 614 428 lccr 12.190000 226.541000 1 1 25.000000 25.000000 265.000000 12191 12191<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">xdef 614 linear -133.459 0.113383763365335<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">ydef 428 linear 12.190000 0.110827272727273<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">NAM conus nest:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">pdef 1799 1059 lccr 21.138000 237.280000 1 1 38.500000 38.500000 262.500000 3000 3000<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">xdef 1799 linear -122.72 0.0292401642786411<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">ydef 1059 linear 21.138000 0.0272727272727273<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The NAM conus nest wind directions appear to be about 90 degrees offset from those of the NAM 12km. I initially thought it may be an issue where one is using grid relative where another is using earth relative,
but now I’m second guessing that – I ran wgrib2 on a single file from each with the -vector_dir option and both appear to show grid relative.. and as you can see above, both have “lccr” in the PDEF.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">What I’m after is being able to plot wind barbs in the meteorological convention from both and I’m curious why I’m getting different results between the above two datasets when plotting the same way.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Many thanks!<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Sam Wilson<u></u><u></u></span></p>
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