BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Maria Di Paolo (University of East Anglia) DTSTART:20240521T130000Z DTEND:20240521T135000Z DTSTAMP:20260423T024651Z UID:UEA_mth/9 DESCRIPTION:Title: Effects of ocean tidal mixing on exoplanet climates and habitability\n by Maria Di Paolo (University of East Anglia) as part of Fluids and Struct ures Seminar @ UEA\n\nLecture held in EFRY 1.01.\n\nAbstract\nDue to their abundance and their observational advantages\, red dwarfs offer the best chance of finding habitable planets through sheer numbers. Potentially hab itable planets in these systems orbit close to their host star and are the refore subjected to strong tidal forcings. Oceans have an important impact on planetary climate\, so understanding their effects is a necessary part of modelling terrestrial exoplanets in order to understand future observa tions. Taking into account the impact of ocean tides can lead to significa nt effects on planetary climate. \n\nWe have conducted studies with an int ermediate complexity coupled atmosphere-ocean general circulation model (F ORTE2.0). We investigated the case of non synchronous terrestrial planets in close orbits in the habitable zone of their red host star. By consideri ng scenarios in which the magnitude of tidal forcings varies over a range of values\, we were able to determine that key quantities such as temperat ure and overturning circulation strength are affected by tidal strength.\n \nWe examined how climates corresponding to different ocean tidal mixing r espond to a decrease of the incoming stellar flux. We found that the outco me of these simulations is highly dependent on the ocean tidal mixing: for a fixed value of stellar flux\, a different magnitude of tidally driven m ixing can lead to either snowball planets or to temperate worlds.\n LOCATION:https://researchseminars.org/talk/UEA_mth/9/ END:VEVENT END:VCALENDAR