BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CIGLR - ECPv6.16.5//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:CIGLR
X-ORIGINAL-URL:https://ciglr.seas.umich.edu
X-WR-CALDESC:Events for CIGLR
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Detroit
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20140309T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20141102T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20150308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20151101T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20160313T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20161106T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Detroit:20151113T103000
DTEND;TZID=America/Detroit:20151113T233000
DTSTAMP:20171206T192522Z
CREATED:20161027T193414Z
LAST-MODIFIED:20171206T192522Z
UID:1668-1447410600-1447457400@ciglr.seas.umich.edu
SUMMARY:11/13/15: Bill Lovis & Alan Arbogast
DESCRIPTION:Please join us for the next CILER-GLERL Great Lakes seminar!\nTime: 10:30-11:30 EST\nLocation: NOAA Great Lakes Environmental Research Lab\,  Lake Superior Hall\nSpeakers: Drs. Bill Lovis and Alan Arbogast\, Michigan State University\nTitle: Potential forcing variables that drive coastal dune evolution along the eastern shore of Lake Michigan: Does hemispheric ENSO Cycling also play a role?\n\nEvent flyer\n\n\nAbstract: The chronology of coastal dune evolution along Lake Michigan has been the focus of intensive research for the past 20 years.  Although early studies associated episodes of dune growth to high lake stages\, this relationship remains unclear\, as do the potential roles of storminess and atmospheric circulatory processes.  We refined the record and association with potential forcing variables through a statistical synthesis of the > 250 14C and optical dates reported thus far.  A probability density distribution (PDD) demonstrates that seven major cycles of dune growth occurred in the past 5\,500 years.  Five periods of dune growth transpired during lake transgressions\, whereas two occurred during lake regressions.  Intervals of dune growth may also be related to hemispheric atmospheric circulatory patterns associated with the reconstructed history of ENSO (El Niño/LaNiña) cycling in the eastern Pacific.  Episodic growth of dunes between about 4\,500 and 2\,000 years ago correlates well with the highly variable frequency and amplitude of El Niño and La Niña events\, respectively.  Extended coastal dune stability between 2\,000 and 1\,000 years ago is closely associated with a significant decrease in ENSO activity.  These associations suggest a linkage between lake-level fluctuations\, sand supply\, and storminess.  Our model is supported by 1) the dominant temporal correlation of dune activation with transgressive lake phases associated with higher basin input and 2) the dominant southwesterly orientation of > 1\,200 parabolic dunes\, suggesting they mobilized in the late autumn and early winter when the strongest modern winds occur in association with deep cyclones lifting out of the south-central Great Plains.  These findings suggest that intense intervals of coastal dune building in the Great Lakes region are not related to any single factor\, but rather the cyclic convergence of several forcing variables\, some of which are hemispheric in nature. \n**Important Visitor Information**\nAll in person seminar attendees are required to receive a visitor badge from the front desk at the NOAA Great Lakes Environmental Research Laboratory facility. Seminar attendees need to present a valid U.S. photo ID or green card. If you are a Foreign National advance notification of at least 48 hours is needed so that security guidelines are followed. You will need to present your passport (a copy will NOT work). For questions regarding building access\, or assistance in obtaining Foreign National clearance\, please call 734-741-2235. Email contact: Tim.Powell@noaa.gov \n\nQuestions? Contact Mary Ogdahl\, ogdahlm@umich.edu
URL:https://ciglr.seas.umich.edu/event/great-lakes-seminar-series-november-13-2015/
LOCATION:NOAA Great Lakes Environmental Research Laboratory\, 4840 S State Rd\, Ann Arbor\, MI\, 48104\, United States
CATEGORIES:Great Lakes Seminar Series
ATTACH;FMTTYPE=image/png:https://ciglr.seas.umich.edu/wp-content/uploads/2016/10/Lovis-Arbogast-e1479403789562.png
END:VEVENT
END:VCALENDAR