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    <p>HI Salman,</p>
    <p>I'm not sure what you mean here.  If you just want to plot the
      wave, do a longitude/time plot along some latitude.  Westward
      propagation (assuming long Rossby waves) will appear as sloping
      contours.  Check out this page for details
<a class="moz-txt-link-freetext" href="http://www-po.coas.oregonstate.edu/research/po/research/rossby_waves/chelton.html">http://www-po.coas.oregonstate.edu/research/po/research/rossby_waves/chelton.html</a></p>
    <p>Jim<br>
    </p>
    <div class="moz-cite-prefix">On 12/1/18 5:06 AM, Salman Khalid
      wrote:<br>
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cite="mid:CACBO-z1+C9aEhyri2p3Bop_UMPswbXr1vpN_5ufOXVx21o1zWg@mail.gmail.com">
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      Hi everyone
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        <div>   I have assignment to create rossby wave by using
          observed data set. I have no idea about that, Can anyone guide
          me for that task. </div>
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        <div>Best Regards<br>
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