try sdfopen instead open<br><br><div class="gmail_quote">2009/9/28 Emily <span dir="ltr"><<a href="mailto:yi_zhou01@yahoo.ca">yi_zhou01@yahoo.ca</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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Hi group members,<br><br>I face a problem when I display 500 hpa geopotential height chart, it shows wrong data.<br><br>My gs file is:<br>'reinit'<br>'open d:\gradsfile\ncdata\hgt200812.ddf'<br>'set grads off'<br>
'set grid off'<br>'set lon 220 310'<br>'set lat 20 60'<br>'set lev 500'<br>'set time 09z28dec2008'<br>'d hgt'<br>====================<br>My ddf is as below:<br>DSET d:\gradsfile\ncdata\<a href="http://hgt.200812.nc" target="_blank">hgt.200812.nc</a><br>
DTYPE netcdf<br>TITLE NARR 4D field Lambert Conformal Conic projection<br>UNDEF 32766 missing_value<br>UNPACK scale_factor add_offset<br>PDEF 349 277 lcc 1 -145.5 1 1 50 50 -107 32463.41 32463.41<br>XDEF 615 linear 150 0.3333<br>
YDEF 255 linear 2 0.3333<br>ZDEF 29 levels 1000, 975, 950, 925, 900, 875, 850, 825, 800, 775, 750, 725, 700,<br> 650, 600, 550, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 125, 100<br>tdef 248 linear
00:00z01dec2008 3hr<br>vars 3<br>hgt 29 t,z,y,x geopotential_height<br>lat=>glat 0 y,x Latitude<br>lon=>glon 0 y,x Longitude<br>endvars<br>=============<br>My grads version: Grads 2.0 a3,<br>window xp<br><br>I notice that the contours laber values are like -25900, -25800..... I think the value is wrong. Then I check ncdump information, the hgt value from ncdump also shows like -25900,.....<br>
<br>Is there some one knowing what wrong with this?Thanks very much.<br><br>Regards,<br><font color="#888888"><br>Emily<br>York University, Toronto, Canada.<br> <br><br></font></td></tr></tbody></table></blockquote></div>
<br><br clear="all"><br>-- <br>Claudio Cortes<br>+56 (2) 2994121 <br><br>Meteorologo<br>Laboratorio de Meteorologia y Calidad de Aire<br>Centro Nacional del Medio Ambiente (CENMA)<br>--------------------------------------------------------------------------------------<br>
<br>Claudio Cortes<br>+56 (2) 2994121<br><br>Meteorologist<br>Meteorology and Air Quality Labs<br>National Enviroment Center, Chile (CENMA)<br>