<div>Hi, Jeff,</div>
<div> </div>
<div>It is great to get your reply. I have tried the ARWpost program, but the shape of the figure is almost the same, so I think the problem maybe something else.</div>
<div> </div>
<div>The header of ctl file created by ARWpost and the figure plotted by GrADS is below, the wps namelist file is also attached. </div>
<div> </div>
<div>The ctl file header:</div>
<div> </div>
<div>dset ^test.dat<br>options byteswapped<br>undef 1.e30<br>title OUTPUT FROM WRF V3.0.1.1 MODEL<br>pdef 73 60 lcc 34.830 -81.030 37.000 30.500 60.00000 30.00000 -98.00000 30000.000 30000.000<br>xdef 224 linear -94.99892 0.13513513<br>
ydef 166 linear 23.26906 0.13513513<br>zdef 27 linear 1 1<br>tdef 5 linear 12Z24JAN2000 180MN</div>
<div> </div>
<div>Test figure <img title="case1ARWpost.png" alt="case1ARWpost.png" src="cid:ii_12e0673d9cbbd826"></div>
<div> </div>
<div>namelist.wps:</div>
<div> </div>
<div>&share<br> wrf_core = 'ARW',<br> max_dom = 1,<br> start_date = '2000-01-24_12:00:00',<br> end_date = '2000-01-25_12:00:00',<br> interval_seconds = 21600<br> io_form_geogrid = 2,<br>/</div>
<div>&geogrid<br> parent_id = 1,<br> parent_grid_ratio = 1,<br> i_parent_start = 1,<br> j_parent_start = 1,<br> e_we = 74,<br> e_sn = 61,<br> geog_data_res = '10m',<br>
dx = 30000,<br> dy = 30000,<br> map_proj = 'lambert',<br> ref_lat = 34.83,<br> ref_lon = -81.03,<br> truelat1 = 30.0,<br> truelat2 = 60.0,<br> stand_lon = -98.0,<br> geog_data_path = '/home/kfu/WRF/WPS_GEOG/geog'<br>
/</div>
<div> </div>
<div>
<div> </div>
<div>Thanks in advance.</div>
<div> </div>
<div>Kai Fu</div><br><br></div>
<div class="gmail_quote">On Tue, Feb 8, 2011 at 12:20 PM, Jeffrey Duda <span dir="ltr"><<a href="mailto:jdduda@iastate.edu">jdduda@iastate.edu</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">You're seeing that because the model grid itself has certain projection. It has nothing to do with how Grads is interpreting the data. This is a WRF thing. It doesn't look like a Lambert Conformal Conic projection, however, because I think if you do "set mproj lambert", your data should appear to be a rectangle with parallel edges and the map behind it should be altered. Your second figure does not show that, so perhaps you have some other projection. I am also a WRF user, but I use the ARWpost program to convert WRF netCDF files to something Grads can read. Since I don't use the wrf2grads program, there could be something with that program that caused the PDEF line in your control file to be something other than it is in the model. <br>
<br>Jeff Duda<br><br>
<div class="gmail_quote">
<div>
<div></div>
<div class="h5">On Tue, Feb 8, 2011 at 10:41 AM, Fu Kai <span dir="ltr"><<a href="mailto:sdfukai@gmail.com" target="_blank">sdfukai@gmail.com</a>></span> wrote:<br></div></div>
<blockquote style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0pt 0pt 0pt 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div>
<div></div>
<div class="h5">
<div class="gmail_quote">
<div>Dear GrADS Users, </div>
<div> </div>
<div>I am beginner to wrf and GrADS, and want to display the output data of wrf using GrADS, I used the wrf2grads program to get the ctl and dat file which are needed by GrADS. When I tried to plot the data, there seems to be a problem, the figure does not coincide with the lat and lon lines (Fig 1). I thought it was because the case uses a lambert projection, while the default projection used by GrADS seems to be Mercator, so I tried to use "set mproj lambert" in GrADS, but only get a small figure (Fig 2) which also seems not properly. Which command should I use to get a right figure.</div>
<div> </div>
<div>Any suggestion would be greatly appreciated. The CTL file and the figure plotted are below. I'm a new GrADS user, so if this is a newbie problem, I apologize in advance.</div>
<div> </div>
<div>CTL file created by wrf2grads program: </div>
<div> </div>
<div>dset ^wrfout_d01_2000-01-24_12:00:00.dat<br>undef 1.e35<br>pdef 73 60 lcc 28.171 -93.649 1.000 1.000 60. 30. -98.000 30000. 30000.<br>xdef 219 linear -94.6 0.13513513<br>ydef 160 linear 23.6 0.13513513<br>
zdef 27 levels<br> 0.02849<br> 0.09096<br> 0.17899<br> 0.29167<br> 0.43435<br> 0.61657<br> 0.83989<br> 1.17945<br> 1.62939<br> 2.10596<br> 2.60960<br> 3.34814<br> 4.30997<br> 5.27340<br>
6.23490<br> 7.19647<br> 8.16307<br> 9.13477<br> 10.11029<br> 11.10285<br> 12.13382<br> 13.21484<br> 14.34895<br> 15.53801<br> 16.78960<br> 18.11523<br> 19.52641<br>tdef 5 linear 12z24jan2000 1mn<br>
vars 8<br>U 27 0 U Compoment of wind<br>V 27 0 V Component of wind<br>W 27 0 W Component of wind<br>THETA 27 0 Theta<br>TC 27 0 Temperature in C<br>P 27 0 Pressure (HPa)<br>
Z 27 0 Height (m)<br>HGT 0 0 Terrain Height<br>endvars</div>
<div> </div>
<div>Fig. 1. </div>
<div><img title="wrfout_d01_2000-01-24_12_00_00.png" alt="wrfout_d01_2000-01-24_12_00_00.png"></div>
<div> </div>
<div>Fig. 2.</div>
<div><img title="wrfout_d01_2000-01-24_12_00_00lambert.png" alt="wrfout_d01_2000-01-24_12_00_00lambert.png"></div>
<div> </div>
<div>Thanks in advance.</div>
<div> </div><font color="#888888">
<div>Kai Fu</div></font></div><br><br></div></div>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>
<br></blockquote></div><font color="#888888"><br><br clear="all"><br>-- <br>Jeff Duda<br>Iowa State University<br>Meteorology Graduate Student<br>3134 Agronomy Hall<br><a href="http://www.meteor.iastate.edu/~jdduda" target="_blank">www.meteor.iastate.edu/~jdduda</a><br>
</font><br>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>
<br></blockquote></div><br>