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Dear all,
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<div class="">This is a reminder that our next EOAS Colloquium is next <b class="">Friday November 1, at 3:30 PM in CAR 101</b>. Our speaker will be
<b class="">Dr. Isla Simpson. </b>Dr. Simpson is a scientist in the Climate and Global Dynamics Division at the National Center for Atmospheric Research (NCAR) and she will be speaking about: </div>
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<div class=""><b class="">Multi-decadal variability in the North Atlantic jet stream, its connection to ocean variability and the implications for decadal prediction
</b>(abstract below)</div>
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<div class="">Please contact Allison Wing (<a href="mailto:awing@fsu.edu" class="">awing@fsu.edu</a>) to schedule a meeting with Dr. Simpson. She studies large-scale atmospheric dynamics and its representation in global climate models. She is particularly interested
in understanding the variability and change of the large-scale circulation and its impacts on regional climate and hydroclimate. Her website is: <a href="http://www.cgd.ucar.edu/staff/islas/index.html" class="">http://www.cgd.ucar.edu/staff/islas/index.html</a> </div>
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<div class="">We look forward to seeing you there! </div>
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<div class="">Title: Multi-decadal variability in the North Atlantic jet stream, its connection to ocean variability and the implications for decadal prediction.</div>
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<div class="">Abstract: The characteristics of the North Atlantic jet stream play a key role in the weather and climate of western Europe. While much of the year to year variability in the jet stream arises from internal atmospheric processes that are inherently
unpredictable on timescales beyond a few days to weeks, any low frequency variability that can be considered forced by slowly varying boundary conditions, offers the potential for extended range predictability of climatological conditions in western Europe.
Here it will be demonstrated that over the historical record, the North Atlantic jet stream has displayed pronounced multi-decadal variability in the late winter with implications for precipitation in western Europe. This jet stream variability far exceeds
that found in state-of-the-art climate models and far exceeds expectations from the sampling of atmospheric noise. It is found that over the observational record there is a strong connection between Sea Surface Temperature (SST) variability and jet stream
variability in the North Atlantic and that this connection appears to be absent in models. Nevertheless, given that models can predict SST variability at long lead time, the observed SST-jet stream-precipitation relationship combined with model predicted
SST variability offers the potential for extended range predictability of low frequency precipitation variability in western Europe.</div>
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Allison Wing, Ph.D.</div>
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Assistant Professor</div>
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Earth, Ocean and Atmospheric Science</div>
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Florida State University</div>
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<a href="mailto:awing@fsu.edu" class="">awing@fsu.edu</a></div>
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