<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">ok, I’ll bite and attempt to answer. <div class=""><br class=""></div><div class="">Assuming you mean this:</div><div class="">Power Dissipation Index (PDI) for a tropical cyclone is defined as, "the sum of the maximum one-minute sustained wind speed cubed, at six-hourly intervals, for all periods when the cyclone is at least tropical storm strength”.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">so calculate wind speed. <span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.ncl.ucar.edu/Document/Functions/Contributed/wind_speed.shtml" class="">https://www.ncl.ucar.edu/Document/Functions/Contributed/wind_speed.shtml</a></div><div class="">find maximum <span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.ncl.ucar.edu/Document/Functions/Built-in/local_max.shtml" class="">https://www.ncl.ucar.edu/Document/Functions/Built-in/local_max.shtml</a></div><div class="">cube the maximum value. <span class="Apple-tab-span" style="white-space:pre"> </span>x^3</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div class="">What your units are and whether they match Emanuels or others is a problem you’ll have to work out. </div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">##############################<br class="">Alan Brammer,<div class="">Post-Doc Researcher</div><div class=""><br class=""></div><div class="">Department of Atmospheric and Environmental Sciences,<br class="">University at Albany, State University of New York, Albany, NY, 12222<div class=""><a href="mailto:abrammer@albany.edu" class="">abrammer@albany.edu</a><br class="">##############################</div></div></div></span></div></div>
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<br class=""><div><blockquote type="cite" class=""><div class="">On 3 Feb 2016, at 09:19, Dennis Shea <<a href="mailto:shea@ucar.edu" class="">shea@ucar.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">Please do not post the same question.<br class=""><br class=""></div>The reason for no answer is that no one knows what you mean by "power dissipation". Hence, there is no function.<br class=""></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Tue, Feb 2, 2016 at 4:06 PM, Key Tone <span dir="ltr" class=""><<a href="mailto:keytone25@gmail.com" target="_blank" class="">keytone25@gmail.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class=""><span style="font-size:12.8px" class="">Hi,</span><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">I was wondering what code/script to use when calculating the power dissipation of this vector plot below?</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class=""><span id="cid:ii_1529af30185e8a15"><image.png></span><br class=""></div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Here is the code for the plot: <span id="cid:ii_1529af414d83e3e4"><image.png></span></div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">Thanks!</div></div>
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