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DTSTAMP:20260716T041113Z
SUMMARY:42nd STUOD Sandbox Workshop – Alexey Fedorov (Yale University)
DESCRIPTION:The 42nd meeting of the Sandbox Series will be held in-person 
 and online:\nTo join in-person:\nPlease ensure you register in advance as 
 spaces are limited in Rm 747 and only for those that have registered.\nTo 
 join remotely via Webex:\nhttps://stuod.my.webex.com/stuod.my/j.php?MTID=m
 21cd5717a2974d86f46df732d3390767\n \nMillennial variability\, regime shif
 ts\, and equilibrium states of global ocean meridional overturning circula
 tion in long climate simulations\nAbstract:\nThe long-term response of the
  meridional overturning circulation (MOC) to radiative forcing is critical
  for regulating Earth’s climate. To investigate this response\, we perfo
 rm long climate simulations (up to 20\,000 years) under atmospheric CO₂ 
 concentrations ranging from 0.35× to 16× the preindustrial level. In the
  warming experiments\, the Atlantic meridional overturning circulation (AM
 OC) rapidly collapses because of enhanced upper-ocean stratification in th
 e subpolar North Atlantic. The AMOC recovers in the 2×CO₂ and 4×CO₂ 
 experiments\, but not in the 8×CO₂ and 16×CO₂ cases. In the 4×CO₂
  experiment\, a spontaneous activation of the Pacific MOC (PMOC) occurs ab
 out 2\,500 years after the experiment begins. Several cooling experiments 
 exhibit self-sustained millennial oscillations resembling Dansgaard–Oesc
 hger events of the late Pleistocene\, driven by interactions between salin
 ity stratification and overturning circulation in the North Atlantic. We a
 lso observe millennial variability in the warm 2×CO₂ experiment\, linke
 d to the abyssal overturning cell and deep convection in the Ross Sea. Thi
 s rich global MOC dynamics emerges only on long\, multi-millennial timesca
 les.\nSchedule\n11.00-12.00: Alexey Fedorov\n12.00-12.30: Questions\n12.30
 -13.30: Lunch\n13.30-14.30: Round table “Ocean Dynamics Open problems”
 \n14.30-15:00: Coffee and Tea
URL:https://www.imperial.ac.uk/events/209752/42nd-stuod-sandbox-workshop-al
 exey-fedorov-yale-university/
DTSTART;TZID=Europe/London:20260612T110000
DTEND;TZID=Europe/London:20260612T150000
LOCATION:747\, Huxley Building\, South Kensington Campus\, Imperial College
  London\, London\, SW7 2AZ\, United Kingdom
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