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<p>Hi Dennis,</p>
<p>I need the index values of the closest 9 single pixels. </p>
<p>Your codes are very helpful.<br>
</p>
<p>Thanks very much Dennis.<br>
</p>
<p>Yun<br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dennis Shea <shea@ucar.edu><br>
<b>Sent:</b> Monday, May 11, 2015 16:26<br>
<b>To:</b> Yun Yue<br>
<b>Cc:</b> ncl-talk@ucar.edu<br>
<b>Subject:</b> Re: [ncl-talk] Find the nearest 9 points of a station</font>
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<div>The index values of the closest single ?swath or grid? pt is given by:<br>
<br>
<a href="http://www.ncl.ucar.edu/Document/Functions/Contributed/getind_latlon2d.shtml">http://www.ncl.ucar.edu/Document/Functions/Contributed/getind_latlon2d.shtml</a><br>
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====================<br>
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<div>Attached is a slightly mangled function which I modified for your purpose...
<br>
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<div>It is UNTESTED . Look at the code. Fix if necessary.<br>
<br>
<br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, May 11, 2015 at 1:05 PM, Yun Yue <span dir="ltr">
<<a href="mailto:yunyue@huskers.unl.edu" target="_blank">yunyue@huskers.unl.edu</a>></span> wrote:<br>
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<p>Hi NCL users,<br>
</p>
<p>Say I have a station's lat and lon, I also have MODIS data. In order to find the nearest 9 pixels' index to this station, I could calculate distance between every pixel and the station, then find the nearest 9 pixels.<br>
</p>
<p>Is there any NCL function to find 9 pixels' index in a faster way?<br>
</p>
<p>Thank you very much.<span class="HOEnZb"><font color="#888888"><br>
</font></span></p>
<span class="HOEnZb"><font color="#888888">
<p>Yun<br>
</p>
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