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<P><FONT SIZE=2 FACE="Arial">I'm trying to open an hdf file using xdfopen.</FONT>
<BR><FONT SIZE=2 FACE="Arial">I'm following the instructions, but I'm getting the following result:</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">gradshdf</FONT>
<BR><FONT SIZE=2 FACE="Arial">Grid Analysis and Display System (GrADS) Version 1.8SL11</FONT>
<BR><FONT SIZE=2 FACE="Arial">Copyright (c) 1988-2001 by Brian Doty</FONT>
<BR><FONT SIZE=2 FACE="Arial">Center for Ocean-Land-Atmosphere Studies</FONT>
<BR><FONT SIZE=2 FACE="Arial">Institute for Global Environment and Society</FONT>
<BR><FONT SIZE=2 FACE="Arial">All Rights Reserved</FONT>
<BR><FONT SIZE=2 FACE="Arial">Config: v1.8SL11 32-bit little-endian readline sdf/xdf hdf-sds lats printim</FONT>
<BR><FONT SIZE=2 FACE="Arial">Issue 'q config' command for more information.</FONT>
<BR><FONT SIZE=2 FACE="Arial">Landscape mode? (no for portrait):</FONT>
<BR><FONT SIZE=2 FACE="Arial">GX Package Initialization: Size = 11 8.5</FONT>
<BR><FONT SIZE=2 FACE="Arial">ga-> xdfopen A2002185.ddf</FONT>
<BR><FONT SIZE=2 FACE="Arial">Scanning Descriptor File: A2002185.ddf</FONT>
<BR><FONT SIZE=2 FACE="Arial">SDF file has no discernable time coordinate.</FONT>
<BR><FONT SIZE=2 FACE="Arial">Alleged lon dimension (from YDEF) is not an SDF dimension. Cannot continue.</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lon dimension name is:</FONT>
<BR><FONT SIZE=2 FACE="Arial">YDim_MOD_CMG_Snow_5km</FONT>
<BR><FONT SIZE=2 FACE="Arial">Alleged lat dimension (from XDEF) is not an SDF dimension. Cannot continue.</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lat dimension name is:</FONT>
<BR><FONT SIZE=2 FACE="Arial">XDim_MOD_CMG_Snow_5km</FONT>
<BR><FONT SIZE=2 FACE="Arial">Data file MYD10C2.A2002185.004.2004026093314.hdf was not successfully opened & parsed.</FONT>
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<P><FONT SIZE=2 FACE="Arial">My ddf file has the following:</FONT>
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<P><FONT SIZE=2 FACE="Arial">DSET MYD10C2.A2002185.004.2004026093314.hdf</FONT>
<BR><FONT SIZE=2 FACE="Arial">TITLE July 3 2002</FONT>
<BR><FONT SIZE=2 FACE="Arial">options yrev</FONT>
<BR><FONT SIZE=2 FACE="Arial">UNDEF -2</FONT>
<BR><FONT SIZE=2 FACE="Arial">YDEF YDim_MOD_CMG_Snow_5km 3600 LINEAR -89.975 0.05</FONT>
<BR><FONT SIZE=2 FACE="Arial">XDEF XDim_MOD_CMG_Snow_5km 7200 LINEAR -179.975 0.05</FONT>
<BR><FONT SIZE=2 FACE="Arial">VARS 1</FONT>
<BR><FONT SIZE=2 FACE="Arial">Eight_Day_CMG_Snow_Cover=>snowcover 1 99 snow cover percent</FONT>
<BR><FONT SIZE=2 FACE="Arial">ENDVARS</FONT>
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<P><FONT SIZE=2 FACE="Arial">The result of hdf ncdump applied to the hdf file is </FONT>
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<P><FONT SIZE=2 FACE="Arial">netcdf MYD10C2.A2002185.004.2004026093314 {</FONT>
<BR><FONT SIZE=2 FACE="Arial">dimensions:</FONT>
<BR> <FONT SIZE=2 FACE="Arial">YDim_MOD_CMG_Snow_5km = 3600 ;</FONT>
<BR> <FONT SIZE=2 FACE="Arial">XDim_MOD_CMG_Snow_5km = 7200 ;</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">variables:</FONT>
<BR> <FONT SIZE=2 FACE="Arial">byte Eight_Day_CMG_Snow_Cover(YDim_MOD_CMG_Snow_5km, XDim_MOD_CMG_Snow_5km) ;</FONT>
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<P><FONT SIZE=2 FACE="Arial">I am running linux redhat 7.3</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Any ideas what the problem might be, or what to try next?</FONT>
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<P><FONT SIZE=2 FACE="Arial">-Steve Ghan</FONT>
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