<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Your post is missing the following information:<div>1. The version of GrADS you are running</div><div>2. What operating system you're running it on</div><div>3. The contents of your ctl file</div><div>4. The error message you get when you try to open your ctl file</div><div>5. More information about the grid in your MODIS file, especially the output from ncdump (which is often enabled to handle HDF files)</div><div>Nobody can help until you provide these things. </div><div>--Jennifer</div><div><br></div><div><br><div><div>On Oct 11, 2012, at 9:53 PM, Ehsan Erfani wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hello,<br><br>I cannot open MODIS (Moderate Resolution Imaging
Spectroradiometer) HDF files by grads. I receive this message when I use
the sdfopen:<br>"gradsdf : SDF file has no discernable X coordinate."<br><br>
I tried to open by xdfopen without any success. Also, I made a ctl but
again it did not help. I appreciate it if you let me know how to open
hdf files by GrADS. Thank you.<br><br>Best regards,<br>Ehsan
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<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</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">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></span>
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