BEGIN:VCALENDAR
PRODID:-//University of Hawaii//UH Events Calendar//EN
VERSION:2.0
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Pacific/Honolulu
BEGIN:STANDARD
TZOFFSETFROM:-1000
TZOFFSETTO:-1000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CLASS:PUBLIC
CREATED:20260421T111243Z
DESCRIPTION:Island Mesoscale Processes: Convective Initiation and Tropical Storm Interaction\n\nDr. Alison Nugent\n\nAssistant Professor\n\nDepartment of Atmospheric Sciences, SOEST\n\nUniversity of Hawaii at Manoa\n\nSeminar Date: Wednesday, March 7, 2018\n\nRefreshments: 3:00 pm at MSB courtyard\n\nFree Cookies, Coffee & Tea Provided\n\n(Please Bring Your Own Cup)\n\nSeminar Time: 3:30pm\n\nAbstract:\n\nIsland terrain provides an obstacle for atmospheric flow, and can interact in many ways, especially at the mesoscale. This presentation will provide two examples of mesoscale island interaction: 1) a theoretical study of convective initiation based on unique upstream observations of temperature and humidity, and 2) interaction of a mesoscale vortex imbedded within a strongly-sheared tropical storm. Both mesoscale studies focus on The Commonwealth of Dominica in the Caribbean.\n\nIn the first part, I’ll describe a modified version of Woodcock’s theory of moist convective initiation. The study uses sub-cloud in-situ aircraft observations and finds that moist patches, which have a lower lifting condensation level, become “seeds” for convection when lifted. This work shows that sub-cloud variations are important for setting the strength and scale of convection.\n\nIn the second part, I’ll describe the impacts of Tropical Storm Erika on Dominica, and explore the range of observations which record a mesovortex passing over and interacting with the island, leading to half a meter of rainfall in about 5 hours. Understanding the factors leading to heavy rainfall is important for future prediction of tropical storms passing near mountainous islands.
DTEND;TZID=Pacific/Honolulu:20180308T023000Z
DTSTAMP:20260421T111243Z
DTSTART;TZID=Pacific/Honolulu:20180308T013000Z
LAST-MODIFIED:20260421T111243Z
LOCATION:Marine Sciences Building, MSB 100
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:Atmospheric Sciences Seminar
TRANSP:OPAQUE
UID:177680596332848web-support-l@lists.hawaii.edu
END:VEVENT
END:VCALENDAR