<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Hi everybody,</span></div><div><span></span> </div><div><span>I was able to use Grads to calculate and plot back-<span id="misspell-0"><span>trajectories</span></span> but there are
some limitations related to that script (I can open just one file for each
calculation) I need to think about. The main issue is that each <span id="misspell-1" class="mark">WRF</span> file
contains only part of the daily values simulated for Indiana we need to get 24
hours back trajectories because the <span id="misspell-2" class="mark">WRF</span> output is in <span id="misspell-3" class="mark">UTC</span>. Therefore in order to
calculate 24 hours back trajectories I would need to open simultaneously
multiple files and in some way change the code (if it is possible to manage this
issue) in order to get all the values and make Grads computing the trajectories.
My main concern is that once I open 2 files I will have exactly the same
variable names so I don't know if it is possible within that code to refer to a
specific value/variable and compute our trajectories correctly.</span></div><div><span>please let me know if you have any suggestions, so that maybe I can try.</span></div><div></div><div> </div><div><font face="times new roman, new york, times, serif">With my kind regards</font></div><div><font face="times new roman, new york, times, serif">Gamal</font></div><div><font face="times new roman, new york, times, serif">_____________________________________________________</font></div><div id="RTEContent"><div id="RTEContent"><div><div><font face="times new roman, new york, times, serif"><b><font size="+0"><font size="+0">Dr.Gamal <span id="misspell-6" class="mark">Salah</span> El Afandi,Senior Researcher.<br>Data to Insight Center<span class="Apple-converted-space"> </span>of <span id="lw_1284057523_3" class="yshortcuts"><span id="lw_1284295300_2" class="yshortcuts"><span style="border-bottom-color: currentColor; border-bottom-width: medium;
border-bottom-style: none;" id="lw_1284901329_11" class="yshortcuts"><span id="lw_1284992610_0" class="yshortcuts">Pervasive Technology Institute</span></span></span></span></font></font></b></font></div><div><font face="times new roman, new york, times, serif"><b><span class="yshortcuts"><span class="yshortcuts"><span style="border-bottom-color: currentColor; border-bottom-width: medium; border-bottom-style: none;" class="yshortcuts"><span class="yshortcuts">Indiana University <span id="misspell-8" class="mark">Bloomington</span> USA</span></span></span></span></b></font></div><div><b><font size="+0">2719 E 10<span id="misspell-9" class="mark">th</span> St.<br>Innovation Center </font></b></div><div><div><b><font size="3">Room 130C. </font></b></div></div><div><b><span style="border-bottom-color: currentColor; border-bottom-width: medium; border-bottom-style: none;" id="lw_1285000288_13" class="yshortcuts"><font size="+0"><span id="misspell-10"
class="mark">Bloomington</span>, IN 47408,USA</font></span></b></div><div><span style="border-bottom-color: currentColor; border-bottom-width: medium; border-bottom-style: none;" class="yshortcuts"><div class="MsoNormal"><span style="color: rgb(118, 146, 60);"><font size="+0"><font size="+0"><font size="+0"><font size="+0"><b><font color="#000000">Phone:+1 <span style="border-bottom-color: rgb(54, 99, 136); border-bottom-width: 2px; border-bottom-style: dotted;" id="lw_1293471561_4" class="yshortcuts">812-856-2146</span></font></b></font></font></font></font></span></div><div class="MsoNormal"><span><span style="border-bottom-color: rgb(54, 99, 136); border-bottom-width: 2px; border-bottom-style: dotted;" class="yshortcuts"></span><font size="+0"><font size="+0"><b><font color="#000000">Fax: +1 812-856-1735</font></b></font></font></span></div><div class="MsoNormal"><span><b></b></span> </div></span></div><div><span
class="Apple-converted-space"></span><b><u><font color="#0066cc"><a href="http://as.cms.rtinfo.indiana.edu/d2i/people" rel="nofollow" target="_blank">http://as.cms.rtinfo.indiana.edu/d2i/people</a></font></u></b></div><div><b><a href="http://pervasivetechnologylabs.iu.edu/d2i/people" rel="nofollow" target="_blank">http://pervasivetechnologylabs.iu.edu/d2i/people</a></b></div><div><b><font face="times new roman, new york, times, serif"> </font></b></div><div><b><font face="times new roman, new york, times, serif">Al <span id="misspell-11" class="mark">Azhar</span> University </font></b></div><div><b><font face="times new roman, new york, times, serif">Faculty of science at Cairo </font></b></div><div><b><font face="times new roman, new york, times, serif">Department of Astronomy and Meteorology</font></b></div><div><b><font face="times new roman, new york, times, serif"><span id="misspell-12" class="mark">Nasr</span> City,Postal Code
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