<div dir="ltr"><div><div><div>Dear all<br></div>This is Suman Maity from IIT Khragpur India. I want to ask the following question:<br></div>I have a time series of daily zonal wind data (365 days). I want to find the annual and semi annual component of it. Then I want to find the dominant modes of its variability. I have searched a lot but couldn't find any easy way to do. Please help how to do it.<br>
<br></div><div>Regards<br></div><div><div><div><div><br clear="all"><div><div><div><i><font style="background-color:rgb(255,153,0)"><span style="background-color:rgb(255,255,255)"><font face="comic sans ms,sans-serif"><b><font size="4">*******************************************************<br>
Suman Maity</font></b></font></span></font></i></div><div><font size="1"><font style="background-color:rgb(255,153,0)"><font size="4"><span style="background-color:rgb(255,255,255)"><font face="comic sans ms,sans-serif">Research Scholar<br>
</font></span></font></font></font></div><div><font size="1"><font style="background-color:rgb(255,153,0)"><font size="4"><span style="background-color:rgb(255,255,255)"><font face="comic sans ms,sans-serif">Center for Ocean, Rivers, Atmosphere and Land Sciences(CORAL)<br>
</font></span></font></font></font></div><div><font size="1"><font style="background-color:rgb(255,153,0)"><font size="4"><span style="background-color:rgb(255,255,255)"><font face="comic sans ms,sans-serif">Indian Institute Of Technology Kharagpur.<br>
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