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Aaron worked with Professor Thomas Birner during his summer internship with 
CMMAP to find out if altering the definition of SSWs has an impact on the
number and type of events identified as such.<p></p>

The polar stratospheric vortex impacts the stratospheric ozone and couples with
surface weather and climate. Its most profound dynamics - sudden stratospheric
warmings (SSWs) - are not fully understood. Many authors alter the subjective
thresholds of the World Meteorological Organization (WMO) definition while
presuming to discuss a similar set of events.<p></p>

Aaron set out to answer the questions<ul>
<li> Does altering the definition of SSWs impact the number and type of events
  identified?</li>
<li> Can the dynamical evolution of the polar vortex motivate the WMO
  thresholds?</li></ul>

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His research poster is here:
<a href="/research/docs/aug13/poster-aaron.pdf">Dynamically motivating the
definition of sudden stratospheric warmings</a>.<p></p>

Aaron is a junior this fall at Cornell University studying atmospheric science
with an interest in atmospheric modeling and climate change.  His hometown is
Harrisburg, Pennsylvania.  He enjoys backpacking, playing scrabble, djembe
drumming and ultimate frisbee.<p></p>

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