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Starting now! <br class="">
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</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">eoas-seminar--- via Eoas-seminar <<a href="mailto:eoas-seminar@lists.fsu.edu" class="">eoas-seminar@lists.fsu.edu</a>><br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Subject:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">[Eoas-seminar] Reminder: MET seminar by Olivia Clifton this afternoon at 3:00 PM</b><br class="">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Date:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">October 21, 2021 at 8:33:39 AM EDT<br class="">
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"<a href="mailto:info@coaps.fsu.edu" class="">info@coaps.fsu.edu</a>" <<a href="mailto:info@coaps.fsu.edu" class="">info@coaps.fsu.edu</a>><br class="">
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Dear all,
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<div class="">Please join us for a Meteorology seminar this afternoon at 3:00 PM! The seminar will be given by Dr. Olivia Clifton (NASA GISS) and will be held over Zoom. </div>
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<div class=""><b class="">Speaker</b>: Dr. Olivia Clifton (NASA GISS)</div>
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<div class=""><b class="">Time</b>: Thursday October 21 @3:00 PM</div>
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<div class=""><b class="">Zoom Link</b>:<span class="Apple-converted-space"> </span><a href="https://fsu.zoom.us/j/92140857520?pwd=WUVzeTMvUGRuTGxEdjRBZERaZ1ZMQT09" id="LPNoLPOWALinkPreview" class="">https://fsu.zoom.us/j/92140857520?pwd=WUVzeTMvUGRuTGxEdjRBZERaZ1ZMQT09</a></div>
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<div class=""><b class="">Title</b>: Turbulence-vegetation-chemistry interactions: influences on dry deposition and oxidation</div>
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<div class=""><b class="">Abstract</b>: Exchanges of reactive gases between the biosphere and atmosphere influence tropospheric chemistry, climate, and ecosystems. Most work focuses on the emissions of reactive gases from the biosphere, but dry deposition happens
when gases are removed from the atmosphere by the biosphere, and ambient chemistry inside vegetation canopies can alter exchanges. Organization in turbulence in the atmospheric boundary layer can spatially separate (“segregates”) air masses, which may cause
chemistry to speed up or slow down relative to the assumption of well-mixed conditions (ubiquitous in analyses of observations and models). Segregation can also influence dry deposition rates when there are correlated fluctuations in the strength of the leaf
uptake and the leaf-level concentrations of the depositing gas. In my talk, I will show results from a novel tool, large eddy simulation coupled to a multilayer canopy model and a simplified chemical mechanism. First, I will show that correlations between
ozone (an air pollutant and potent greenhouse gas with an important depositional sink) and leaf uptake are relatively small, suggesting that estimates of ozone removal can ignore this effect. Low segregation is in part due to counteracting influences from
micrometeorological variations on ozone and leaf uptake individually versus the influence of leaf uptake on ozone. Second, I will show the impact of segregation on the reactivity of the hydroxyl radical (the most important tropospheric oxidant) inside a forest
canopy and discuss how segregation and its impact changes with environmental conditions.</div>
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<div class="">We hope to see you all there!</div>
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<div class="">Cheers,</div>
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<div class="">Zhaohua</div>
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<div class="">Topic: MET Seminar</div>
<div class="">Time: Oct 21, 2021 03:00 PM Eastern Time (US and Canada)</div>
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<div class="">Join Zoom Meeting</div>
<div class=""><a href="https://fsu.zoom.us/j/92140857520?pwd=WUVzeTMvUGRuTGxEdjRBZERaZ1ZMQT09" class="">https://fsu.zoom.us/j/92140857520?pwd=WUVzeTMvUGRuTGxEdjRBZERaZ1ZMQT09</a></div>
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<div class="">Meeting ID: 921 4085 7520</div>
<div class="">Passcode: 985061</div>
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