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PhD Dissertation Defense

November 15, 2:00pm - 5:00pm
Manoa Campus, POST Building, Room 414

Thomas J. Dunn
Meteorology, PhD Candidate
Department of Meteorology
School of Ocean and Earth Science & Technology

PhD Thesis Title:
Weather and Dispersion Modeling of the Fukushima Daiichi Nuclear Power Station Accident


The atmospheric and radiological consequences of the accident at the Fukushima Daiichi nuclear power station were investigated for the period 00 UTC 11 March to 00 UTC 17 March, 2011. Coupled weather and dispersion model simulations of the accident were performed using two independent source terms, which differed in the emission rate and height and in the total amount of the radioactive material released. The results show significant differences in the distribution of the cumulative surface deposition of 137Cs due to wet and dry removal processes. Dry deposition was the dominant removal process in all simulations, accounting for the majority of surface contamination. A comparison of 137Cs predicted by the modeling system with observations of surface-deposited gamma radiation obtained from aircraft showed reasonable agreement in surface contamination patterns during the fair weather phase of the accident due to dry deposition. During the wet phase the pattern is not as well predicted.  It is suggested that this discrepancy is because of differences between the model predicted and observed precipitation distributions.

Event Sponsor
SOEST Meteorology, Manoa Campus

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Friday, November 15
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7:30am The Wellness Center - Fitness Class Schedule
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9:00am History Final Oral
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9:30am Hawaiian Ferns 201
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10:00am Hawaiian Studies MA Program Informational Session
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12:00pm 2013 Loloma award recipients
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12:00pm Political Science Final Oral
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1:00pm Tropical Plant and Soil Sciences Final Oral
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1:00pm Fall Native Hawaiian Scholar Brown Bag
Manoa Campus, Hālau ʻO Haumea-Kamakakūokalani Center for Hawaiian Studies
1:30pm Graduate School Informational Session
Manoa Campus, Kamakakuokalani 211
2:00pm PhD Dissertation Defense
Manoa Campus, POST Building, Room 414
2:00pm Meteorology Final Oral
Manoa Campus, POST 414
2:30pm Aesthetics of Tension: Becoming Anarchist
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3:00pm EALL Talk Series
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4:30pm Peace Education
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5:30pm Wiki Slideshows on Japan Powered by PechaKucha
Manoa Campus, Tokioka Room (Moore Hall 319)
7:00pm Rockin the Roots Concert
Manoa Campus, Hemenway Courtyard
8:00pm Dance Anniversary: Look Back Move Forward
Manoa Campus, Kennedy Theatre Mainstage
8:30pm Singles Table Tennis Tournament
Manoa Campus, Studio 3
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