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X-WR-CALNAME;VALUE=TEXT:ClimaTea Journal Club
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SUMMARY:ClimaTea Journal Club
DESCRIPTION:<p class="gmail-p1" style="margin:0in;margin-bottom:.0001pt">	Speaker: Judy Pu</p><p class="gmail-p1" style="margin:0in;margin-bottom:.0001pt">	 </p><p class="gmail-p1" style="margin:0in;margin-bottom:.0001pt">	<span><span>Judy will lead the discussion on the Snowball Earth climate dynamics and Cryogenian</span></span><span><span><span> and she lead us through the following key points:</span></span></span></p><ul>	<li>		<span><span><span><span>Geological evidence shows that ice from polar regions reached equatorial latitudes at least twice in Earth history during the Cryogenian Period (720-635 Ma).</span></span></span></span>	</li>	<li>		<span><span><span><span>High-precision geochronology, paleomagnetism, and climate modeling support globally synchronous deglaciation for both snowball periods, but onset age and duration of the later Marinoan snowball Earth remain unclear.</span></span></span></span>	</li>	<li>		<span><span><span><span>The snowball Earth periods were times of dynamic glaciers and ice sheets in a cold and dry climate state, with possible reversal of the annual mean tropical atmospheric circulation.</span></span></span></span>	</li>	<li>		<span><span><span><span>Trigger mechanisms and reasons for the drastic difference in duration between the two Cryogenian snowball Earth events are still uncertain.</span></span></span></span>	</li></ul>
LOCATION:Seminar Room MCZ, 429
STATUS:CONFIRMED
DTSTART:20180213T200000Z
DTEND:20180213T200000Z
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