BEGIN:VCALENDAR VERSION:2.0 PRODID:-//18.83.4.138//NONSGML kigkonsult.se iCalcreator 2.20// CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Oceans at MIT X-WR-CALDESC:Striving to understand\, harness and sustain Earth'\;s def ining frontier. X-FROM-URL:http://oceans.mit.edu X-WR-TIMEZONE:America/New_York BEGIN:VTIMEZONE TZID:America/New_York X-LIC-LOCATION:America/New_York BEGIN:STANDARD DTSTART:20171105T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RDATE:20181104T020000 TZNAME:EST END:STANDARD BEGIN:DAYLIGHT DTSTART:20180311T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:9g2sb4helvoome98emc9t6fva8@google.com DTSTAMP:20180503T102130Z CATEGORIES;LANGUAGE=en-US:MIT Seminar | PAOC Oceanography and Climate Sack Lunch CONTACT: DESCRIPTION:I will present a suite of records from a 950 m-depth sediment c ore from the western North Atlantic\, a site influenced by Antarctic Inter mediate Water (AAIW) in the modern ocean. The data suggest that northern s ourced waters dominated the water mass mixture during the LGM\, and that A AIW was shallower than ~850m. A d18O decrease early in Heinrich Stadial 1 (HS1) is attributed to the incorporation of deglacial meltwater into the n orthern sourced waters that continued to influence the site. Two interpret ations for the mid-to-late HS1 data will be discussed\, having opposite im plications for the vigor of the Atlantic Meridional Overturning Circulatio n (AMOC) during this interval. After HS1\, the data conform to the consens us view of AMOC variability – increased AAIW presence during the Bolling-A llerod and the Holocene\, when the AMOC was strong\, and reduced AAIW pres ence during the Younger Dryas when the AMOC was weak. DTSTART;TZID=America/New_York:20151118T120000 DTEND;TZID=America/New_York:20151118T130000 LOCATION:54-915 SEQUENCE:0 SUMMARY:SLS – Delia Oppo (WHOI) – Deglacial Atlantic circulation:evidence f rom multiproxy records from shallow western north Atlantic sediment cores URL:http://oceans.mit.edu/event/sls-delia-oppo-whoi-deglacial-atlantic-circ ulationevidence-from-multiproxy-records-from-shallow-western-north-atlanti c-sediment-cores X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\nI will present a suite of records from a 950 m-depth sediment core from the western North Atlantic\, a site influenced by Antarctic Intermediate Water (AAIW) in the modern ocean. The data suggest that northern sourced waters dominated the water mass mixture during the LGM\, and that AAIW was shallower than ~850 m. A d18O decrease early in Heinrich Stadial 1 (HS1) is attributed to the incorporation of deglacial meltwater into the northern sourced waters that continued to influence the site. Two interpretations for the mid-to-late HS1 data will be discussed\, having opposite implications for the vigor of the Atlantic Meridional Overturning Circulation (AMOC) during this interv al. After HS1\, the data conform to the consensus view of AMOC variability – increased AAIW presence during the Bolling-Allerod and the Holocene\, w hen the AMOC was strong\, and reduced AAIW presence during the Younger Dry as when the AMOC was weak. END:VEVENT END:VCALENDAR