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Atmospheric Sciences Seminar

March 7, 3:30pm - 4:30pm
Mānoa Campus, Marine Sciences Building, MSB 100

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Island Mesoscale Processes: Convective Initiation and Tropical Storm Interaction

Dr. Alison Nugent
Assistant Professor
Department of Atmospheric Sciences, SOEST
University of Hawaii at Manoa

Seminar Date: Wednesday, March 7, 2018
Refreshments: 3:00 pm at MSB courtyard
Free Cookies, Coffee & Tea Provided
(Please Bring Your Own Cup)
Seminar Time: 3:30pm

Abstract:

Island 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.

In 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.

In 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.

Event Sponsor
SOEST Atmospheric Sciences, Mānoa Campus

More Information
(808) 956-7944, SEE FLYER (PDF)

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Wednesday, March 7
10:00am	Manoa Says No More: A Resource Fair Mānoa Campus, Campus Center Courtyard
10:00am	Lyon Arboretum Docent Guides’ Training Course Mānoa Campus, Lyon Arboretum, 3860 Manoa Road, Honolulu, HI 96822
10:00am	Military Intelligence Service Soldiers and the Pacific War Mānoa Campus, Hamilton Library Room 301
10:00am	Spring 2018 Career Fair Mānoa Campus, Campus Center Ballroom
12:00pm	MUSIC @ART - Free Lunchtime Concerts, Spring 2018 Mānoa Campus, Art Building, ground floor breezeway by the Galleries
12:00pm	Campus Games - Mortal Kombat Tournament Finals Honolulu Campus, Student Lounge (Building 2, Room 111)
12:30pm	UH-Hilo Transfer Advising Hilo Campus, Building 5-Conference Room
1:30pm	Geology & Geophysics Final Oral Mānoa Campus, POST 723
2:00pm	Study Abroad Meeting - Semester in Florence, Italy Mānoa Campus, Moore 226
2:30pm	Education Final Oral Mānoa Campus, Wist 129
3:00pm	Architecture Final Oral Mānoa Campus, ARCH 314
3:00pm	For Boys and Girls Comrade! Children's Books: For Fun And/or Politics Mānoa Campus, Hamilton Library #401
3:00pm	Electrical Engineering Final Oral Mānoa Campus, Holmes 389
3:00pm	Study Abroad Meeting - Semester in Shanghai, China Mānoa Campus, Moore 205
3:30pm	International Women’s Day celebration. Meeting Kim Binsted UH -NASA research Mānoa Campus, Moore 252
3:30pm	Atmospheric Sciences Seminar Mānoa Campus, Marine Sciences Building, MSB 100
3:30pm	Russian Club is hosting a quest who will talk about US-Russia space cooperatio Mānoa Campus, Moore Hall 252
5:30pm	Learn About Going to Law School at Night Mānoa Campus, William S. Richardson School of Law
6:00pm	2018 Uehiro Graduate Student Philosophy Conference Mānoa Campus, Sakamaki Hall D-201, Uehiro Academy