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<p class="xhtmlbody" align="center" style="text-align:center;mso-line-height-alt:11.5pt;background:white">
<b><u><span style="font-size:26.0pt;font-family:"Monotype Corsiva";color:#201F1E">Meteorology Seminar</span></u></b><span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xhtmlbody" align="center" style="text-align:center;mso-line-height-alt:11.5pt;background:white">
<b><span style="font-size:28.0pt;font-family:"Monotype Corsiva";color:#201F1E">Michael Secor</span></b><span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xhtmlbody" align="center" style="text-align:center;background:white"><span style="font-size:28.0pt;font-family:"Monotype Corsiva";color:#201F1E">M.S. Meteorology Candidate</span><span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xhtmlbody" style="background:white"><span style="color:#201F1E"> </span><span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xdoublespacedcaps" style="background:white"><b><u><span style="font-size:14.0pt;font-family:SimSun;color:#201F1E;text-transform:uppercase">TITLE</span></u></b><b><span style="font-family:SimSun;color:#201F1E;text-transform:uppercase">:</span></b><span style="font-family:SimSun;color:#201F1E;text-transform:uppercase">
HOW GLOBAL WARMING AND TOPOGRAPHY HAVE IMPACTED THE AMPLITUDE OF SYNOPTIC TEMPERATURE VARIABILITY<o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><span style="font-family:"Calibri",sans-serif;color:#201F1E"> </span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><b><u><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#201F1E">Major Professor</span></u></b><b><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#201F1E">: </span></b><b><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:black">Dr.
Zhaohua Wu</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"> </span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><b><u><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#201F1E">Date</span></u></b><b><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#201F1E">:</span></b><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> November
6<sup>th</sup>, 2020 <b><u>Time</u>: 11:00 AM</b></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xhtmlbody" style="background:white"><b><span style="font-size:10.0pt;color:#201F1E"> </span></b><span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xhtmlbody" style="background:white"><b><u><span style="font-size:14.0pt;color:#201F1E">Location</span></u></b><b><span style="font-size:14.0pt;color:#201F1E">: </span></b><span style="font-size:14.0pt;color:#201F1E">Zoom Meeting
<a href="https://us02web.zoom.us/j/81395817136?pwd=SVZaVE5NbGdhNzBPazZkRFd2NDNNdz09">
https://us02web.zoom.us/j/81395817136?pwd=SVZaVE5NbGdhNzBPazZkRFd2NDNNdz09</a> </span>
<span style="font-size:10.0pt;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" align="center" style="text-align:center;background:white"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> </span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" align="center" style="text-align:center;background:white"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E">ABSTRACT</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" align="center" style="text-align:center;background:white"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> </span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"><o:p></o:p></span></p>
<p class="xmsonormal" style="text-indent:.5in;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> <o:p></o:p></span></p>
<p class="xmsonormal" style="text-indent:.5in;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> <o:p></o:p></span></p>
<p class="xmsonormal" align="center" style="text-align:center;background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E">Synoptic scale drivers, mainly extra-tropical cyclones, account for a majority of the day to day temperature
variability in the mid-latitudes. This variability is at its greatest in the Northern Hemisphere in Boreal winter when the surface meridional temperature gradient is strong. Global warming has led to a reduction of the surface meridional temperature gradient
due to the phenomenon of Arctic Amplification, where the Arctic has been warming at a faster rate than the mid-latitudes or tropics. Changes to the surface meridional temperature gradient will likely alter the baroclinicity of the mid-latitudes and thus extra-tropical
cyclones. Understanding how extra-tropical cyclones and their associated temperature variability change in the presence of warming is vital to mitigating the potential outcomes such as an increased chance of heatwaves in regions with reduced variability or
an increased chance of cold snaps that could negatively impact farmers in regions of increased variability. Using complementary ensemble empirical mode decomposition (CEEMD) to isolate the synoptic component of daily mean surface temperature, the evolution
of the trend of synoptic temperature variability is analyzed. There has been a spatial in-homogeneity of synoptic temperature variability change ranging from -36.5% to 39.2% from 1948-2018 over the continental United States, Northern Mexico, and surrounding
oceans. This variability is also temporally non-uniform. The first three decades experienced relatively large decadal rates of change, followed by a two-decade lull, where large regions experienced a reversal in the direction of synoptic temperature variability
change. The last two decades have maintained the spatial structure observed in 1998 with the regions expanding in size and changing more quickly with time. Higher altitudes and surrounding regions generally see an increase in variability while elsewhere over
land a reduction is observed. This creates a three-band structure over the continental United States. Averaged over the entire domain, an increase in variability in excess of 6% is observed below 30<img border="0" width="6" height="17" style="width:.0625in;height:.177in" id="_x0000_i1025" src="cid:image001.png@01D6B41F.9E16F9A0">N
while a reduction of 4.25% is observed above 30<img border="0" width="6" height="17" style="width:.0625in;height:.177in" id="_x0000_i1026" src="cid:image001.png@01D6B41F.9E16F9A0">N.<o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#201F1E"> <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Shel McGuire<o:p></o:p></p>
<p class="MsoNormal">Florida State University<o:p></o:p></p>
<p class="MsoNormal">Academic Program Specialist<o:p></o:p></p>
<p class="MsoNormal">Department of Earth, Ocean, & Atmospheric Science<o:p></o:p></p>
<p class="MsoNormal">1011 Academic Way, 2019 EOA Building<o:p></o:p></p>
<p class="MsoNormal">Tallahassee, FL 32306<o:p></o:p></p>
<p class="MsoNormal">850-644-8582<o:p></o:p></p>
<p class="MsoNormal">To make an appointment please login to my.fsu.edu and choose the Campus Connect (CC) icon<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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