<div dir="ltr"><div class="gmail_default" style="font-size:small">Jake,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">wrf_user_ij_to_ll should give you the lon, lat value very close to the location where the i,j lines intersect.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If you look at example 2 on the documentation page:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><a href="http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_ij_to_ll.shtml" target="_blank">http://www.ncl.ucar.edu/<wbr>Document/Functions/WRF_arw/<wbr>wrf_user_ij_to_ll.shtml</a></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">it shows how you can compare the wrf_user_ij_to_ll lat,lon value with what you get if you simply read XLAT and XLONG off the file and subscript them with the same index values (minus 1, since NCL goes from 0 to 1)</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">To help you visually see what's going on, I've included a modified version of one of those examples that shows how to draw the WRF lat/lon grid with two markers: one from the values returned by wrf_user_ij_to_ll, and one from subscripting XLAT/XLONG using the same i,j values. You will see they are pretty much identical, since the red and blue circles are concentric.<br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Hopefully you can plug in your WRF output file and your i,j values, and get a similar set of plots. You will likely need to change these four resources for the zoomed in plot to be whatever area you are interested in.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><div class="gmail_default">;---Zoom in on plot</div><div class="gmail_default"> res@mpMinLatF = 32</div><div class="gmail_default"> res@mpMaxLatF = 37</div><div class="gmail_default"> res@mpMinLonF = -95</div><div class="gmail_default"> res@mpMaxLonF = -87</div><div><br></div></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Mary</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Dec 3, 2016 at 3:17 AM, Jacob Alberto Garcia <span dir="ltr"><<a href="mailto:jacob_garcia@dlsu.edu.ph" target="_blank">jacob_garcia@dlsu.edu.ph</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hi i was able to get the lat lon coordinates using the wrf ll to latlon</p>
<p dir="ltr">But now im wondering, since im interested in that cell, for example [27, 27] it only gives me one lat lon ( using wrf ll to lat lon) but i want to know the span of it. Like the other three sides of that grid. <br>
<br>
I thought of using my grid dist (4km) to add or subtract from the output given by the ll to lat lon function, but as ive mentioned earlier this function only gives me one lat lon for that grid of interest. But what part of the grid? Upper left? Or is it the one at the center?<br></p>
<p dir="ltr">Hoping for your help!<br>
Jake</p>
<br>
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