<div dir="ltr"><div><div><div>Unless you have a strict objective way to define the ITCZ, you may not be able to get the exact results you want. But one thing you can try is to mask your field by latitude:<br><br></div>'d maskout(field,abs(lat)-10)'<br><br></div>The above command would plot a field only within 10 deg. of the equator. Adjust for your specific longitude band.<br><br></div>Jeff Duda<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Feb 27, 2017 at 7:04 AM, Mubashar Ahmad <span dir="ltr"><<a href="mailto:mubashardogar@gmail.com" target="_blank">mubashardogar@gmail.com</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>Dear GrADS users,<br><br></div>I would like to draw 0 contour border (over tropical ITCZ region) in the upper panel of attached figure. If I simply use command "set gxout contour, or 'set clevs 0' and then display my variable it will draw many contours, but I don't want to display 0 values every where, instead I want it across ITCZ area (tropical region, red color) in the upper panel of attached figure. How can I do it in GrADS?<br><br></div>Thanks and best regards,<br><br></div>Mubashar<br></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Jeff Duda<br>Post-doctoral research fellow<br>University of Oklahoma School of Meteorology<br></div></div></div></div></div>
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