List,<div><br></div><div>Just wanted to see if anyone can point me in the right direction with this problem. I've read through the documentation but it's still unclear to me how to proceed with lcc grids that cross the equator. I've verified the data in the grib file indeed stretches well below the equator and that this is an issue isolated to GrADS.</div>
<div><br></div><div>Thanks for any help!<br>Dan<br><br><div class="gmail_quote">On Thu, Aug 16, 2012 at 3:06 AM, Dan Leins <span dir="ltr"><<a href="mailto:theedge981@gmail.com" target="_blank">theedge981@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Jennifer,<div><br></div><div>Yes, the data is on a lambert projection that crosses the equator. If pdef lcc isn't the appropriate option, what else can I try? I've looked through the pdef documentation but I don't see anything that stands out as the obvious solution.</div>
<div><br></div><div>For reference, here is how my pdef line is currently defined in my control file:</div><div><br></div><div><div><b><font face="courier new, monospace">pdef 269 169 rotllr -10.242000 -88.026000 1 1 25.118000 25.118000 -46.680000 40000 40000</font></b></div>
</div><div><br></div><div>Here's some metadata about the grib file itself:</div><div><br></div><div><div><b><font face="courier new, monospace"> File Name : 201207240600_arw_wrfout_d01.grb</font></b></div>
<div><b><font face="courier new, monospace"> File Format : GRIB 1</font></b></div><div><b><font face="courier new, monospace"> Model ID : 116</font></b></div><div><b><font face="courier new, monospace"> Center ID : 7</font></b></div>
<div><b><font face="courier new, monospace"> Sub Center ID : 0</font></b></div><div><b><font face="courier new, monospace"><br></font></b></div><div><b><font face="courier new, monospace"> Grid Projection : Lambert Conformal</font></b></div>
<div><b><font face="courier new, monospace"><br></font></b></div><div><b><font face="courier new, monospace"> Grid Dimensions NX x NY : 269 x 169</font></b></div><div><b><font face="courier new, monospace"> Grid Spacing DX, DY : 40.000km, 40.000km</font></b></div>
<div><b><font face="courier new, monospace"> Standard Latitude : 25.118</font></b></div><div><b><font face="courier new, monospace"> Standard Longitude : -46.680</font></b></div><div><b><font face="courier new, monospace"> Latitude, Longitude (1,1): -10.242, -88.026</font></b></div>
<div><b><font face="courier new, monospace"> True Lat1, Lat2 : 25.118, 25.118</font></b></div><div><b><font face="courier new, monospace"> Pole : North Pole</font></b></div><div>
<b><font face="courier new, monospace"> Scan : WE:SN</font></b></div>
<div><b><font face="courier new, monospace"><br></font></b></div><div><b><font face="courier new, monospace"> Corner Lat-Lon points of the domain:</font></b></div><div><b><font face="courier new, monospace"><br></font></b></div>
<div><b><font face="courier new, monospace"> 43.14, -111.83 43.15, 18.45</font></b></div><div><b><font face="courier new, monospace"> * *</font></b></div><div><b><font face="courier new, monospace"><br>
</font></b></div><div><b><font face="courier new, monospace"> * 24.75, -47.09</font></b></div><div><b><font face="courier new, monospace"><br></font></b></div><div><b><font face="courier new, monospace"> * *</font></b></div>
<div><b><font face="courier new, monospace"> -10.24, -88.03 -10.24, -5.35</font></b></div></div><div><br></div><div><br></div><div>Any advice on how to proceed?</div><div><br></div><div>Thanks!</div><span class="HOEnZb"><font color="#888888"><div>
Dan</div></font></span><div class="HOEnZb"><div class="h5"><div><br><div class="gmail_quote">On Fri, Aug 10, 2012 at 4:24 PM, Jennifer Adams <span dir="ltr"><<a href="mailto:jma@cola.iges.org" target="_blank">jma@cola.iges.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">If the native grid is on a lambert projection that crosses the equator? If so, then the pdef lcc won't work properly. --Jennifer<div><br><div><br><div><div><div><div>On Aug 10, 2012, at 6:14 PM, Dan Leins wrote:</div>
<br></div></div><blockquote type="cite"><div><div>List,<div><br></div><div>I have a grib1 file from a WRF model which is displaying improperly in GrADS. The domain is fairly large and crosses the equator as well as the prime meridian. Here is the output from q dims:</div>
<div><br></div><div><div>X is varying Lon = -88.026 to 11.0066 X = 1 to 269</div><div>Y is varying Lat = -10.242 to 50.8489 Y = 1 to 169</div><div>Z is fixed Lev = 1013 Z = 1</div><div>T is fixed Time = 06Z24JUL2012 T = 1</div>
<div>E is fixed Ens = 1 E = 1</div><div><br></div></div><div><br></div><div>I'm attaching an image of the 'landsfc' field from the grib file, it's obvious that the field is displaced too far north.</div>
<div><br></div><div>Any idea what could be going on here? I've tried setting different map projections in GrADS but that doesn't resolve the problem. </div><div><br></div><div>Thanks for any help!</div><div>Dan</div>
</div></div><div><span><landsfc.png></span>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br>
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--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org" target="_blank">jma@cola.iges.org</a></div><div><br>
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