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Particle flux transformation in the mesopelagic water column

February 21, 3:00pm - 4:00pm
Manoa Campus, UH Manoa Add to Calendar

Lionel Guidi, PhD student from the Laboratory of Oceanography, Villefranche, France, will be speaking about "particle flux transformation in the mesopelagic water column" on Thursday, February 21 at 3:00pm in MSB 100.

Abstract:
Marine aggregates are an important means of carbon transfers downwards to the deep ocean. During these last 10 years, data on size distribution of particulate matter have been collected in different oceanic provinces using an Underwater Video Profiler. Aggregate size distribution data have been used to study mid-water particle distributions and processes of export. First, size distributions of large aggregates have been related to sediment trap compositional data to estimate the vertical fluxes using simple power relationship ( ). Second, a mesoscale area in the North Atlantic Ocean was studied to emphasize the importance of the physical structure of the water column on the horizontal and vertical distribution of particulate matter. Finally, evolution of the aggregate size distributions with depth and mass flux in the mesopelagic layer were related to overlying primary production and phytoplankton size-distributions on a global scale.


Event Sponsor
Oceanography, UH Manoa

More Information
Oceanography Dept, 956-7633, ocean@soest.hawaii.edu

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Thursday, February 21
11:00am BrownBag - Laulima Overview
Manoa Campus, Broadcast location: Kuykendall 204
12:00pm Tom Coffman on The First Battle
Manoa Campus, 1800 East West Road, Henke Hall 325
12:00pm Geography Colloquium
Manoa Campus, Saunders Hall 443B
3:00pm Particle flux transformation in the mesopelagic water column
Manoa Campus, UH Manoa
3:30pm New Prospects For Studying New Matter
Manoa Campus, Watanabe Hall, Rm. 112
3:30pm Distinguished Lecture Series
Manoa Campus, Keller Hall, Room 401
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