GENIUS!!! I guess I must've tried every option but hdf4. Thanks so much for your help w/this. I was able to find a kludgy workaround using gdal and imagemagick but I much prefer using GrADS for several reasons not the least of which is the fact that the other method took ~2.5 minutes to make the same plot that GrADS can make is just over 1 second.<br>
<br>Thanks again.<br><br>Cheers,<br>Matt <br><br><div class="gmail_quote">On Mon, Apr 5, 2010 at 3:54 PM, Huddleston, John <span dir="ltr"><<a href="mailto:Huddleston@cira.colostate.edu">Huddleston@cira.colostate.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Matt, see the following for the specifications.<br>
<br>
<a href="http://oceancolor.gsfc.nasa.gov/DOCS/Ocean_Level-3_SMI_Products.pdf" target="_blank">http://oceancolor.gsfc.nasa.gov/DOCS/Ocean_Level-3_SMI_Products.pdf</a><br>
<br>
The control file is something like:<br>
<br>
dset ^S20100652010072.L3m_8D_LAND_NDVI_4km<br>
dtype hdf4<br>
title SeaWiFS Level-3 Standard Mapped Image<br>
undef -1 Fill<br>
unpack Slope Intercept<br>
options yrev<br>
xdef 8640 linear -179.9791667 0.04166666667<br>
ydef 4320 linear -89.97916667 0.04166666667<br>
zdef 1 linear 1 1<br>
tdef 1 linear 00:00Z23apr2006 1dy<br>
vars 1<br>
l3m_data=>sea 1 y,x l3m_data<br>
endvars<br>
</blockquote></div><br>