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Hi Ken,<br>
<br>
There doesn't seem to be any direction data in the GUSTsfc variable,
only the wind gust speed itself. On the page that you link to the
associated grads script simply displays the GUSTsfc variable by<br>
<br>
'd GUSTsfc * 1.9438449'<br>
<br>
Kind regards,<br>
<br>
Ben<br>
<br>
<br>
<div class="moz-cite-prefix">On 2/09/2013 8:50 AM, Ken Kato wrote:<br>
</div>
<blockquote
cite="mid:E6CC5A2604A98F49A3F0901433A07A1F01C9089E46AC@BOM-VMBX-HO.bom.gov.au"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta content="MSHTML 6.00.6000.17095" name="GENERATOR">
<div><font face="Arial" size="2"><span class="616331222-01092013">Hi
all,</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"></span></font> </div>
<div><font face="Arial" size="2"><span class="616331222-01092013">Does
anyone know how to display surface wind gust speeds using
the GFS datasets (self-describing format, high
definition) from either the NOMAD or monsoondata servers?</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013">For
example, if I use the script below:</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"></span></font> </div>
<div><font face="Arial" size="2"><span class="616331222-01092013">'sdfopen
<a moz-do-not-send="true"
href="http://nomads.ncep.noaa.gov:9090/dods/gfs_hd/gfs_hd20130901/gfs_hd_12z%27">http://nomads.ncep.noaa.gov:9090/dods/gfs_hd/gfs_hd20130901/gfs_hd_12z'</a><br>
'set LAT -47 -8'<br>
'set LON 105 160'<br>
'set lev 1000'<br>
'set t 5'</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013">'d
mag(ugrd10m,vgrd10m,gustssfc)'</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"> </span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013">...
it just results in:</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"></span></font> </div>
<div><font face="Arial" size="2"><span class="616331222-01092013">Error
from MAG: Too many or too few args<br>
Two arguments expected<br>
Operation Error: Error from mag function<br>
Error ocurred at column 1<br>
DISPLAY error: Invalid expression</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"></span></font> </div>
<div><font face="Arial" size="2"><span class="616331222-01092013">I've
tried all sorts of different combinations such as "d
mag(ugrd10m;vgrd10m;gustssfc)", "d gustssfc", etc as well as
the GFS data from monsoondata but no luck. However, some
websites offer GFS wind gust speed charts (e.g. <a
moz-do-not-send="true"
href="http://forecasts.bsch.com.au/stormcast.html?ops=gfs:2013090106:2013090606:aus:gustssfc:null#sc">http://forecasts.bsch.com.au/stormcast.html?ops=gfs:2013090106:2013090606:aus:gustssfc:null#sc</a>)
and I've seen the "gustssfc" variable mentioned in past
discussions but doesn't appear in the datasets' </span></font><font
face="Arial" size="2"><span class="616331222-01092013">variables
list.</span></font></div>
<div><font face="Arial" size="2"><span class="616331222-01092013"></span></font> </div>
<div><font face="Arial" size="2"><span class="616331222-01092013">Ken.</span></font></div>
<div> </div>
<div> </div>
<br>
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<br>
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