<div dir="ltr"><div><div>Hi Arnold, <br><br></div>I'll send you the butterworth filter fortran code later today.<br><br></div>D<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Mar 16, 2016 at 12:00 AM, <span dir="ltr"><<a href="mailto:Arnold.Sullivan@csiro.au" target="_blank">Arnold.Sullivan@csiro.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hi there,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Just found that we can get the top envelope function from bw_bandpass_filter, however how was it calculated? Can we get the bottom envelope function as well??<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">So that we can create this kind of plot:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><a href="http://www.mdpi.com/remotesensing/remotesensing-07-15583/article_deploy/html/images/remotesensing-07-15583-g002.png" target="_blank">http://www.mdpi.com/remotesensing/remotesensing-07-15583/article_deploy/html/images/remotesensing-07-15583-g002.png</a><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">At the end, of course, we then can do the EEMD by using NCL, which is my main purpose.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Regards,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Arnold<u></u><u></u></p>
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