BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Kenneth Golden (University of Utah) DTSTART:20210617T160000Z DTEND:20210617T170000Z DTSTAMP:20260423T035939Z UID:Inverse/51 DESCRIPTION:Title: On Thinning Ice: Modeling and monitoring sea ice in a warming climate \nby Kenneth Golden (University of Utah) as part of International Zoom Inv erse Problems Seminar\, UC Irvine\n\n\nAbstract\nPolar sea ice is a key co mponent of Earth’s climate system. As a material it is a composite which is structured on length scales ranging over ten orders of magnitude. A pr incipal challenge in modeling sea ice is how to use information on small s cale structure to find the effective or homogenized properties on larger s cales relevant to climate models. Moreover\, the inverse problem of estima ting parameters controlling small scale processes from large scale observa tions is also of interest. For example\, electromagnetic remote sensing of sea ice is central to assessing the impact of climate change. We will dis cuss recent results on forward and inverse homogenization for sea ice over a broad range of scales. We consider electromagnetic and fluid transport through the brine and polycrystalline microstructure\, advection diffusion processes\, ocean wave propagation through the ice pack\, melt ponds\, an d the sea ice concentration field over the Arctic Ocean. This work is help ing to advance how sea ice is represented in climate models\, and to impro ve projections of the fate of Earth’s sea ice packs and the ecosystems t hey support.\n LOCATION:https://researchseminars.org/talk/Inverse/51/ END:VEVENT END:VCALENDAR