This is hard to get around given the rules you've set forth. If you can't restrict your search box yet you don't want the maxima that occur at certain spots, how can you tell a script to make that distinction? What is it about the one jet core that makes it the one you want? When you can answer that, then you know how to adjust your search to always get the jet core you want.<br>
<br>Jeff Duda<br><br><div class="gmail_quote">On Tue, Dec 11, 2012 at 1:18 AM, Muhammad Yunus Ahmad Mazuki <span dir="ltr"><<a href="mailto:ukm.yunus@gmail.com" target="_blank">ukm.yunus@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br><br>The picture attached is a slice of longitude 180E, from 40 S to 20S. As you can see, the core that I wanted is at the 23S with wind speed of 18. I have tried using maximum value function in grads, as well as maximum location, but it would give me 39S corresponding to a core below 40S, which I do not want. I would like to request suggestion on solving this problem. Changing the latitude range to less than 40S however is not acceptable, as at certain condition the core can be at 38 S. <br>
<br>Sincerely, <br>Muhammad Yunus<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Jeff Duda<br>Graduate research assistant<br>University of Oklahoma School of Meteorology<br>Center for Analysis and Prediction of Storms<br><br>