<div dir="ltr"><div class="gmail_default" style="font-size:small">You might take a look at using shapefiles and the "gc_inout" function. See example shapefiles_4.ncl at:</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/Applications/shapefiles.shtml#ex4">http://www.ncl.ucar.edu/Applications/shapefiles.shtml#ex4</a></div><div class="gmail_default" style="font-size:small">
<br></div><div class="gmail_default" style="font-size:small">You may be able to use the "shapefile_mask_data" function that's part of this example, if you can find a shapefile containing the Tibetan Plateau.</div>
<div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If already have a lat/lon array that contains the Tibetan outline, then you can use this with gc_inout directly, and you won't need to bother with a shapefile.</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"></div></div><div class="gmail_extra"><br><br>
<div class="gmail_quote">On Sun, Aug 31, 2014 at 6:48 AM, Li Qi <span dir="ltr"><<a href="mailto:liqi123sh@qq.com" target="_blank">liqi123sh@qq.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>Dear all,</div><div><br></div><div>I'd like to ask how to mask out tibetan plateau when plotting FNL data on 700hPa and 850hPa.</div><div><br></div><div>Any advice will be greatly appreciated!</div><br>_______________________________________________<br>
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