<div dir="ltr"><div>Thanks Dennis. But it still does no produce any figures. I have attached the script of ncl. Found the following instruction of how to read that in iDL : <br><br><pre style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;word-wrap:break-word;white-space:pre-wrap"> res = 1.0 ; 1.0 degree spatial resolution
nlon = ROUND(360./res) ; number of columns (-180,180)
nlat = ROUND(180./res) ; number of rows (-90, 90)
lonFirst = -180+0.5*res ; west boundary (first column)
latFirst = -90+0.5*res ; south boundary (first row)
dailyGriddedAod550 = FLTARR(nlon, nlat)
date = '2015161' ; string in YYYYDDD format
fileName = date+'_highQc_aot550_eps.dat'
OPENR, lun, /GET_LUN, fileName
READU, lun, dailyGriddedAod550
CLOSE, lun
FREE_LUN, lun</pre>Thanks.<br></div>Debasish<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 10, 2016 at 4:21 PM, Dennis Shea <span dir="ltr"><<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div>Did you look at the size of your file??<br><br>259200 2015161_highQc_aot550_eps.dat<br></div>^^^^^^^<br><br></div>float or integer are 4 bytes<br><br></div>4*180*360 = 259200 so **one** float or integer variable<br></div><div><br></div>You are using<br><br> setfileoption("bin","readbyteorder","littleendian")<br><br> var1 = cbinread("./EPS_HQ/2015161_highQc_aot550_eps.dat",(/2,180,360/),"float")<br> var2 = cbinread("./EPS_HQ/2015161_highQc_aot550_eps.dat",(/2,180,360/),"integer")<br><br></div>For two integer or float variables the size should be: 259200 + 259200 = 518400<br><br></div><div>At the very least, you should have been getting an NCL error message about wrong size.<br><br></div><div><br></div><br><div><br><br><div><div><br><div><div><div><br><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Tue, May 10, 2016 at 12:32 PM, Debasish Hazra <span dir="ltr"><<a href="mailto:debasish.hazra5@gmail.com" target="_blank">debasish.hazra5@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div><div><div>Hi,<br><br></div>I am trying to read binary data with ncl (v6.3) but not sure whether it is reading it right. Also, it does not produce any plots. Attached are the script presently working on and sample data. Any help on this is well appreciated.<br><br></div>Thanks.<span><font color="#888888"><br></font></span></div><span><font color="#888888">Debasish.<br></font></span></div>
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