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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">Our next Meteorology seminar will be TODAY at 3pm. Please join us for a talk by Dr. Isabel McCoy (NOAA Chemical Sciences Laboratory) on the topic of “Utilizing Mesoscale Cloud
Morphology Regimes to Understand Forcing and Feedback”</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">DATE: Tuesday Oct 8</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">TIME: 3 PM</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">LOCATION: EOAS 1044</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">SPEAKER: Dr. Isabel McCoy</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">AFFILIATION: NOAA Chemical Sciences Laboratory</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">TITLE: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">ABSTRACT: Changes in boundary layer clouds in response to global warming as well as their interactions with aerosols are two key sources of uncertainty in future climate projections
and climate sensitivity estimation. In this observational study, we examine how the organization of boundary layer clouds into mesoscale morphology patterns (O~100 km) may modulate both cloud feedback and aerosol forcing. We utilize identifications from a
supervised neural network algorithm that categorized near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At constant cloud fraction, brightness differences between morphology patterns depend in part on
the prevalence of optically thin cloud features. Environmentally driven transitions from closed MCC to other morphology patterns, which are typically accompanied by more optically thin cloud features associated with increased precipitation depletion, are used
as a framework to quantify the morphology contribution to the optical depth component of the shortwave cloud feedback. Including a measure of anthropogenic aerosol in addition to environmental controls in this regime framework provides insights into the sensitivity
of aerosol forcing to cloud morphology shifts under past, current, and future climates.</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><u><span style="font-size:12.0pt;font-family:"Arial",sans-serif">Bio:</span></u><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">Isabel McCoy is a research scientist at CIRES, University of Colorado Boulder and NOAA Chemical Sciences Laboratory. She has a PhD in Atmospheric Sciences from the University
of Washington and was a NOAA Climate and Global Change Postdoctoral Fellow from 2020-2022. Her work utilizes <i>in situ</i> and satellite observations as well as large-eddy simulations and global climate models to study how clouds influence the climate through
aerosol-cloud-precipitation interactions and feedback. In her recent work, Isabel has focused on understanding how mesoscale organization of boundary layer clouds influences the climate system and how socioeconomic choices will impact our future climate through
modifying regional and global aerosol concentrations in addition to greenhouse gases.</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">HOST: Michael Diamond, msd22d@fsu.edu</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
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