<div dir="ltr"><div><div><div><div>re: "remove the seasonal mean of individual years"<br><br>---<br></div>This is ambiguous. <br><br></div><div>[1] What do ou mean by "seasonal mean" ?<br></div><div>[2] Also, rather difficult to address without knowing the variable structure<br><br></div>[1] <br>If by "seasonal mean" you mean the average (a scalar) of all the tri-daily values, then loop over each year an subtract the current year's overall mean<br><br>[2] <br></div><div>For *each* time (say, 0Z, 8Z, 16Z) find the overall 0/8/16 means and then loop and subtract those values.<br><br>[3] <br></div><div>Maybe run a simple weighted running average over the time means and then subtract the smoothed values.<br><br></div><div><br></div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 1, 2017 at 12:37 AM, gibies george <span dir="ltr"><<a href="mailto:gibies@tropmet.res.in" target="_blank">gibies@tropmet.res.in</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">Dear NCL users,<div><br></div><div>I have tridaily data for June-September (JJAS) season for many years. What is the best option to remove the seasonal mean of individual years out of this data?</div><div><br></div><div>thanks and regards<br clear="all"><div><div class="m_-5657830022743268173gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><b style="font-size:12.8px"><font size="2"><br></font></b></div><div><b style="font-size:12.8px"><font size="2"><br></font></b></div><div><b style="font-size:12.8px"><font size="2">Dr. Gibies George,</font></b><br></div><div><b style="font-size:12.8px"><font size="1">Project Scientist C,</font></b><br></div><div><b style="font-size:12.8px"><font size="1">Monsoon Mission,</font></b><br></div><div><b><font size="1">Indian Institute of Tropical Meteorology,<br>Dr. Homi Bhabha Road, </font></b></div><div><b><font size="1">NCL Post Office, </font></b></div><div><b><font size="1">Pashan, Pune 411008, India.<br>Office Teleph : <a href="tel:+91%2020%202590%204423" value="+912025904423" target="_blank">+912025904423</a><br>Office mail : <a href="mailto:gibies@tropmet.res.in" target="_blank">gibies@tropmet.res.in</a><br><br>______________________________<wbr>______________<br>Vettikuzhiyil House,<br>Ezhakkaranadu South </font></b><b style="font-size:12.8px"><font size="1">Post Office,</font></b><b><font size="1"><br>Puthencruz-682308, Kochi, India.<br>Mobile number : <a href="tel:+91%2090285%2023910" value="+919028523910" target="_blank">+919028523910</a>, <a href="tel:+91%2094204%2007392" value="+919420407392" target="_blank">+919420407392</a>, <br>Personal mail : <a href="mailto:gibiesgeorge@gmail.com" target="_blank">gibiesgeorge@gmail.com</a><br><a href="http://sites.google.com/site/gibiesge/" target="_blank">http://sites.google.com/site/<wbr>gibiesge/</a></font></b><div style="margin-left:80px"><div><b><font size="1"><br></font></b></div></div><font color="#274e13"><b><span style="font-family:Arial;font-size:16px">______________________________<wbr>_________________________</span><br>The theme of World Earth Day 2017 is “Environmental and Climate Literacy”.</b></font><br></div><div><font color="#274e13"><b>"</b></font><b style="color:rgb(39,78,19);font-size:12.8px">Please do not print this e-mail unless you really need.</b></div><div><b style="color:rgb(39,78,19);font-size:12.8px"> Because every 3000 pages cost a tree. </b><b style="font-size:12.8px"><font color="#274e13">Save Trees, Save mother Earth." </font></b></div><div><div><font size="1"><br></font></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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