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DTSTAMP:20260424T143004Z
UID:66b34160d80e4852087338@ist.ac.at
DTSTART:20250414T113000
DTEND:20250414T123000
DESCRIPTION:Speaker: Detlef Lohse\nhosted by Bjorn Hof\nAbstract: The Atlan
 tic Meridional Overturning Circulation (AMOC) results from the balance bet
 ween thermal and haline buoyancy in the Atlantic. Presently\, water flows 
 from the Gulf of Mexico towards the Northern Atlantic and Europe\, but it 
 has been speculated that the massive glacier melting in Greenland could le
 ad to a breakdown or even tipping of AMOC. We numerically study this pheno
 menon in a very simplified model AMOC in a box which consists of double di
 ffusive horizontal convection and\, depending on the meltwater input\, we 
 reveal four different regimes. Also the ice melting in saline water itself
 \, which is so crucial for the future of AMOC\, is studied with the help o
 f very simplified models\, which on the one hand reveal the essentials of 
 the process\, but on the other hand allow for a one-to-one comparison betw
 een experiment and direct numerical simulations. Examples include the melt
 ing of ice cylinders in salty water\, the melting of ice sheets in Rayleig
 h-Bnard convection\, and the melting by vertical convection in salty water
 . This work contributes to advancing our understanding of the complex dyna
 mics involved in glacial ice melting within oceanic environments.
LOCATION:Raiffeisen Lecture Hall\, Central Building\, ISTA
ORGANIZER:mariassu@ist.ac.at
SUMMARY:Detlef Lohse: Melting and tipping: From the lab to the ocean
URL:https://talks-calendar.ista.ac.at/events/5703
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