<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<div class="">Dear all,
<div class=""><br class="">
</div>
<div class="">Please join us this <b class="">Thursday December 7</b> for the last Meteorology seminar of the semester, given by <a href="https://urldefense.com/v3/__https://claresinger.github.io__;!!PhOWcWs!3Z_1Oc0JxoCtjMJuorUpXUyUTL3aoHWsDLF5hgabYOnAm7cm7eRRdebXNyvBVgyTo4FkwP9XvKNUizQ1$" class="">Dr.
Clare Singer</a> of Lamont-Doherty Earth Observatory and Boston College. She will speak about "<i class="">Stratocumulus-cumulus transitions in present and future climates</i>” (abstract below).</div>
<div class=""><br class="">
</div>
<div class="">Dr. Singer will be joining us virtually but we will still gather in person in 1044. If you have a medical excuse or approved work off campus, please contact Allison Wing for the Zoom link. Otherwise, we will see you in 1044. </div>
<div class=""><br class="">
</div>
<div class="">If you are interested in meeting with the speaker via Zoom, please contact Allison Wing (<a href="mailto:awing@fsu.edu" class="">awing@fsu.edu</a>). </div>
<div class=""><br class="">
</div>
<div class=""><b class="">DATE: </b>Thursday December 7</div>
<div class=""><b class="">SEMINAR TIME: </b>Refreshments at 3 PM, Talk 3:15 - 4:15 PM</div>
<div class=""><b class="">SEMINAR LOCATION: </b>EOA 1044 (Speaker remote)</div>
<div class=""><b class="">SPEAKER: </b><a href="https://urldefense.com/v3/__https://claresinger.github.io__;!!PhOWcWs!3Z_1Oc0JxoCtjMJuorUpXUyUTL3aoHWsDLF5hgabYOnAm7cm7eRRdebXNyvBVgyTo4FkwP9XvKNUizQ1$" class="">Dr. Clare Singer</a></div>
</div>
<div class=""><br class="">
</div>
<b class="">TITLE:</b> <i class="">Stratocumulus-cumulus transitions in present and future climates</i>
<div class=""><br class="">
<b class="">ABSTRACT:</b> Stratocumulus clouds occurring over eastern subtropical ocean basins dominate climatological cloudiness at low latitudes and are important for Earth’s global radiative energy budget. Further west, there is an observed transition to
scattered cumulus cloud cover, the so-called stratocumulus-cumulus transition (SCT). To explore the mechanisms driving the SCT, I will present an extension of the traditional bulk boundary layer model for stratocumulus-topped boundary layers that explicitly
considers cloud decoupling from the surface and subsequent cloud fraction reduction. I will then use this model to consider cloud decoupling and breakup in response to increased CO2 concentrations in an idealized two-column framework. Finally, I embed this
representation of decoupling-induced cloud breakup in CESM2 to explore the direct effect of CO2 on low cloud cover while retaining a realistic representation of the large-scale circulation and thermodynamic state of the free-troposphere. I will show preliminary
results from these experiments and discuss the implications of these results for nonlinear cloud feedbacks and direct cloud adjustments.
<div class=""><br class="">
<div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">
——————————————————</div>
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">
Allison Wing, Ph.D.<br class="">
Werner A. and Shirley B. Baum Professor<br class="">
Associate Professor, Department of Earth, Ocean and Atmospheric Science<br class="">
Florida State University<br class="">
<a href="mailto:awing@fsu.edu" class="">awing@fsu.edu</a></div>
<div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">
<br class="">
</div>
<br class="Apple-interchange-newline">
</div>
</div>
<br class="Apple-interchange-newline">
<br class="Apple-interchange-newline">
</div>
<br class="">
</div>
</div>
</div>
</body>
</html>