<div>Mahakur,</div>
<div> </div>
<div>Thank you for your help. I do have a question for you though. </div>
<div> </div>
<div>I downloaded the same file and tried to display the same data using the provided control file. However my image looks nothing like yours. Did you just open the control file and </div>
<div> </div>
<div>'d snow' ?</div>
<div> </div>
<div>Or did you multiply it by 0.039etc...... to convert it to inches? Even when I do that, I get an image with a small contour over the central part of the US, but nothing representative. What commands did you use when you opened the control file?
</div>
<div> </div>
<div>Thanks,</div>
<div>Dan<br> </div>
<div><span class="gmail_quote">On 7/24/07, <b class="gmail_sendername">M.Mahakur</b> <<a href="mailto:mmahakur@tropmet.res.in">mmahakur@tropmet.res.in</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div text="#000000" bgcolor="#ffffff">Dear Dr. Dan,<br><br>I tried to pull the following small tarball and since it is a ONLY ONE band BIL I feel it could be display using GrADS.<br><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="ftp://sidads.colorado.edu/DATASETS/NOAA/G02158/SNODAS_20070722.tar" target="_blank">
ftp://sidads.colorado.edu/DATASETS/NOAA/G02158/SNODAS_20070722.tar</a><br><br>Looking at the Header I tried. Please see the attached ctl and image file. It is a 16 bit raster image but I feel the valid data is max 581 (within 10 bits) kg per sqr m. I did not understand what is meant ny axis offset, so just ignored!
<br><br>Regards,<br><span class="sg"><br>Mahakur</span>
<div><span class="e" id="q_113f7e1ea49b56d9_2"><br><br>Dan Leins wrote:
<blockquote cite="http://mid46e821750707230948m21b63834n825ac0e8fd649397@mail.gmail.com" type="cite">
<div>All,</div>
<div> </div>
<div>I am trying to download and view a gridded dataset of 24hr snowfall from NOAA/NOHRSC using GrADS. So far, I've downloaded the dataset in question, un-tarred it and briefly read through some information about the data type. It would appear to contain 2 files, one a text header and the other a binary raster file. Does anyone know if GrADS will accept this as a data type, and if not, how to convert it to something a little more "GrADS-friendly"? I've worked with binary files in the past so I'm aware that GrADS can use binary files so long as there is a control file specified, however I wouldn't even know where to begin looking for or creating a control file from scratch.
</div>
<div> </div>
<div>The data in question can be accessed here...</div>
<div><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.nohrsc.noaa.gov/archived_data/instructions.html" target="_blank">http://www.nohrsc.noaa.gov/archived_data/instructions.html</a></div>
<div> </div>
<div>Thanks,</div>
<div>Dan</div></blockquote><br><br></span></div></div><br>dset us_ssmv01025SlL00T0024TTNATS2007072205DP001.dat<br>title test<br>UNPACK 1.0 0.0<br>options yrev<br>#undef -9999.0<br>undef 65535<br>xdef 6935 linear -124.729583333333
0.00833333333333333<br>ydef 3351 linear 24.9495833333324 0.00833333333333333<br>zdef 1 levels 1000<br>tdef 1 linear 22jul2007 1dy<br>vars 1<br>snow 0 -1,40,2 (0.1 kilometer per square meter)<br>endvars<br><br><br><br clear="all">
</blockquote></div><br>