<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hi <span class="email">Ebrahim,<br><br>The hgt.200812.nc is another kind of data set, 8 times per day. It is a pre-projection format, so I can not open it use sdfopen.<br><br></span>Regards,<br><br>Emily<br><br>--- On <b>Tue, 9/29/09, ebrahim mirzaei <i><emirzaei@GMAIL.COM></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: ebrahim mirzaei <emirzaei@GMAIL.COM><br>Subject: Re: display hgt.200812.nc<br>To: GRADSUSR@LIST.CINECA.IT<br>Received: Tuesday, September 29, 2009, 12:40 AM<br><br><div id="yiv1645763563">Hi Emily,<div>If your data is netCDF, why don't you use sdfopen without .ddf or .ctl file:</div><div><br></div><div>'reinit'</div><div>'open <span class="Apple-style-span" style="font-size: medium;">d:\gradsfile\ncdata\<a rel="nofollow" target="_blank"
href="http://hgt.200812.nc">hgt.200812.nc</a>'</span></div>
<div><span class="Apple-style-span" style="font-size: medium;">'set grads off'</span></div><div><span class="Apple-style-span" style="font-size: medium;">'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></span></div><div><br></div><div><br><br><div class="gmail_quote">On Mon, Sep 28, 2009 at 9:17 PM, Emily <span dir="ltr"><<a rel="nofollow" ymailto="mailto:yi_zhou01@yahoo.ca" target="_blank" href="/mc/compose?to=yi_zhou01@yahoo.ca">yi_zhou01@yahoo.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td style="font-family: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; font-size: inherit; line-height: inherit; font-size-adjust: inherit; font-stretch: inherit; -x-system-font: none;" valign="top">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 rel="nofollow" target="_blank" href="http://hgt.200812.nc">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></div>
</div></blockquote></td></tr></table>