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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260428T211445Z DTSTART;VALUE=DATE-TIME:20161010T150000 DTEND;VALUE=DATE-TIME:20161010T160000 SUMMARY:Chris Brady (ÌÇÐÄTV): Heating of the solar chromosphere by Alfve n waves TZID:Europe/London UID:20161010-094d4345569289060156b19ea865408c@warwick.ac.uk CREATED:20160822T093940Z DESCRIPTION:Abstract : It has been known for many years that the lower ch romosphere can be heated by the shock dissipation of acoustic waves. The y can not be responsible for heating the upper chromosphere though becau se the energy is completely dissipated lower down. Various mechanisms fo r heating the upper chromosphere have been proposed\, and many of them u se Alfven waves as the mechanism to carry energy into the upper chromosp here. The question is how the energy is dissipated. Based on high resolu tion 2D MHD simulations the possible dissipation mechanisms are consider ed\, coming to the conclusion that the primary heating mechanism is like ly to be the dissipation of ponderomotively generated slow shocks. LOCATION:PS017 CATEGORIES:CFSA Seminar LAST-MODIFIED:20161003T115057Z ORGANIZER;CN=Anne-Marie Broomhall: END:VEVENT END:VCALENDAR