Title:
The effect of lower sea level on geostrophic transport through the Florida Straits during the last glacial maximum

dc.contributor.advisor Lynch-Stieglitz, Jean
dc.contributor.advisor Di Lorenzo, Emanuele
dc.contributor.author Ionita, Dana en_US
dc.contributor.committeeMember Annalisa Bracco
dc.contributor.committeeMember Robert Black
dc.contributor.department Earth and Atmospheric Sciences en_US
dc.date.accessioned 2009-06-08T19:27:54Z
dc.date.available 2009-06-08T19:27:54Z
dc.date.issued 2009-01-14 en_US
dc.description.abstract We investigate the effect of a 120 meter sea level drop on transport through the Caribbean Sea and the Florida Straits during the Last Glacial Maximum (LGM) relative to the present, using the Regional Ocean Modeling System (ROMS). A geostrophic transport estimate for the Florida Straits suggests the LGM Florida Current was weaker than today by one third, inferring a likely decrease in the North Atlantic overturning circulation by 12-15 Sv. A possible impact of a shallower LGM Florida Straits sill depth on the Florida Current has been suggested. Our model results show that the volume transport through the Florida Straits is slightly reduced in a lower sea level model simulation when compared to a control sea level simulation (34.8 ± 2.0 Sv vs. 39.8 ± 2.3 Sv). The difference in transport is of the order of 5 Sv, representing a maximum limit to the LGM flow reduction due to sea level change. Therefore the change in sill depth between the LGM and the present is unlikely to have been a cause of the entire observed flow reduction. en_US
dc.description.degree M.S. en_US
dc.identifier.uri http://hdl.handle.net/1853/28200
dc.publisher Georgia Institute of Technology en_US
dc.subject Geostrophic transport en_US
dc.subject Florida Straits en_US
dc.subject LGM en_US
dc.subject Last Glacial Maximum en_US
dc.subject.lcsh Sea level
dc.subject.lcsh Geostrophic currents
dc.subject.lcsh Last Glacial Maximum
dc.subject.lcsh Florida, Straits of
dc.title The effect of lower sea level on geostrophic transport through the Florida Straits during the last glacial maximum en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Lynch-Stieglitz, Jean
local.contributor.advisor Di Lorenzo, Emanuele
local.contributor.corporatename School of Earth and Atmospheric Sciences
local.contributor.corporatename College of Sciences
relation.isAdvisorOfPublication b7dd700b-e3d6-4b64-b7ea-8fa3d13c3b6b
relation.isAdvisorOfPublication 946a7455-d6b2-4bfa-87c2-1a6e6139f97b
relation.isOrgUnitOfPublication b3e45057-a6e8-4c24-aaaa-fb00c911603e
relation.isOrgUnitOfPublication 85042be6-2d68-4e07-b384-e1f908fae48a
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Ionita_Dana_A_200905_mast.pdf
Size:
1.74 MB
Format:
Adobe Portable Document Format
Description: