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<p class="HTMLBody" align="center" style="text-align:center"><b><u><span style="font-size:26.0pt;font-family:"Monotype Corsiva"">Meteorology Seminar<o:p></o:p></span></u></b></p>
<p class="HTMLBody" align="center" style="text-align:center"><b><span style="font-size:16.0pt;font-family:"Monotype Corsiva""><o:p> </o:p></span></b></p>
<p class="HTMLBody" align="center" style="text-align:center"><b><span style="font-size:28.0pt;font-family:"Monotype Corsiva"">Mengtao Yin</span></b><span style="font-size:28.0pt;font-family:"Monotype Corsiva""><o:p></o:p></span></p>
<p class="HTMLBody" align="center" style="text-align:center"><span style="font-size:28.0pt;font-family:"Monotype Corsiva"">PhD Meteorology Candidate<o:p></o:p></span></p>
<p class="HTMLBody"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="doublespacedcaps" align="left" style="text-align:left;line-height:normal">
<b><u><span style="font-size:14.0pt">Title</span></u>:</b> <span style="font-size:14.0pt">
Understanding Microphysics of Snowflakes and Snow Precipitation Process Using Spaceborne Microwave Measurements</span><span style="font-size:14.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><u><span style="font-size:14.0pt">Major Professor</span></u></b><b><span style="font-size:14.0pt">: Dr. Guosheng Liu</span></b><b><u><span style="font-size:14.0pt;font-family:Times"><o:p></o:p></span></u></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><u><span style="font-size:14.0pt">Date</span></u></b><b><span style="font-size:14.0pt">:</span></b><span style="font-size:14.0pt">
<b>March 07, 2019</b> <b><u>Time</u>: 3:30 to 6:00 PM</b></span><b><span style="font-size:14.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></b></p>
<p class="HTMLBody"><b><o:p> </o:p></b></p>
<p class="HTMLBody"><b><u><span style="font-size:14.0pt">Location</span></u></b><b><span style="font-size:14.0pt">:
</span></b><span style="font-size:14.0pt">Werner A. Baum Seminar Room (353 </span>
<span style="font-size:14.0pt">Love Building)<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><b>(Please join us for refreshments served outside room 353 Love @ 3:00 PM)</b><b><span style="font-size:12.0pt"><o:p></o:p></span></b></p>
<p class="HTMLBody" style="text-autospace:ideograph-other"><span style="font-size:9.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:12.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><b>ABSTRACT<o:p></o:p></b></p>
<p class="MsoNormal"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="text-align:justify;text-indent:49.5pt"><span style="mso-fareast-language:ZH-CN">Snow, another precipitation form besides rain, affects the Earth’s climate distinctly by modifying hydrological and radiative processes. The radiative
properties of nonspherical snowflakes are much more complicated than their spherical counterparts, raindrops. Snowflakes with different structures tend to have different scattering properties. Thus, it is important for us to increase the knowledge in falling
snow. However, only a few sensors have been available so far that can provide global snowfall measurements including those onboard he
<span style="color:black;background:white">Global Precipitation Measurement (GPM) core observatory and the CloudSat satellites. The GPM satellite carries two important instruments for studying snow precipitations, i.e., the Dual</span></span><span style="color:black">–</span><span style="color:black;background:white;mso-fareast-language:ZH-CN">frequency
Precipitation Radar (DPR) and the GPM Microwave Imager (GMI). By combining the GPM instruments with another active sensor onboard the CloudSat satellite, the Cloud Profiling Radar (CPR), an unprecedented opportunity arises for understanding the microphysics
of snowflakes and the physical processes of snow precipitation. Seizing this opportunity, in this study, we firstly investigate the microphysical properties of snow particles by analyzing their backscattered signatures at different frequencies. Then, the accuracy
of simulating passive microwave brightness temperatures at high frequencies is examined under snowfall conditions using the CPR derived snow water content profiles as radiative transfer model inputs. Lastly, a passive microwave snowfall retrieval method is
developed in which the <i>a priori</i> database is optimized by tuning snow water content profiles to be consistent with the GMI observations.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-indent:49.5pt"><span style="color:black;background:white;mso-fareast-language:ZH-CN">This research explores the application of spaceborne microwave measurements to snowfall studies by combining CloudSat and
GPM instruments. It provides new knowledge on snowflake microphysics and applicable methods in retrieving three</span><span style="color:black">–</span><span style="color:black;background:white;mso-fareast-language:ZH-CN">dimensional snow water distribution
from passive high frequency microwave measurements.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-indent:49.5pt"><span style="color:black;background:white;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal">Please see attachment for full abstract.<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">1017 Academic Way, 410 Love Building (Meteorology)<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"><o:p> </o:p></p>
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