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CREATED:20260712T181919Z
DESCRIPTION:MidPleistocene Transition from Budyko's Energy Balance Model\n\n\n\nDr. Esther Widiasih\n\nAssistant Professor\n\nDepartment of Mathematics\n\nUniversity of Hawaii at West Oahu\n\n\n                            \nSeminar Date:      Wednesday, October 24, 2018\n\nRefreshments:      3:00pm at MSB lanai\n\n                             Free Cookies, Coffee & Tea Provided\n\n                             (Please Bring Your Own Cup)\n\nSeminar Time:      3:30pm\n\nLocation:              Marine Sciences Building, MSB 100\n\n\n\nAbstract:\n\n\nEnergy Balance Models (EBMs) arguably are the simplest form of global climate models. They allow for a deeper mathematical analysis to complement the understanding gained from more complex models. In this talk, I will revisit the long-standing question of which dynamical processes are responsible for the Mid Pleistocene Transition (MPT) in light of a low-order, flip-flop model based on Budyko's EBM. Built upon this EBM is a system of three non-smooth ordinary differential equations (ODEs), which admits glacial cycles and has similar characteristics as the proxy records. Furthermore, it can be shown that when a critical bifurcation parameter of the system is linked to key characteristics of benthic 18O records, the model simulates a realistic MPT. Interestingly, the particular bifurcation parameter is one that controls the relationship between temperature and precipitation.
DTEND;TZID=Pacific/Honolulu:20181025T023000Z
DTSTAMP:20260712T181919Z
DTSTART;TZID=Pacific/Honolulu:20181025T013000Z
LAST-MODIFIED:20260712T181919Z
LOCATION:Marine Sciences Building, MSB 100
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:Atmospheric Sciences Seminar: Dr. Esther Widiasih
TRANSP:OPAQUE
UID:178391635934174web-support-l@lists.hawaii.edu
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