The PI will measure late glacial through Holocene 231Pa/230Th in a depth transect of cores on the Blake Ridge in the western North Atlantic, with the objective of understanding the mechanisms that control these radioisotopes and their relationship to sediment flux and deposition. The PI argues that this would allow a better use of the Pa-Th method to evaluate the changes in the Atlantic Meridional Overturn Circulation between glacial times and the present. Currently the data relevant to this problem are scattered and thus difficult to interpret. Broader impacts: In addition to promoting better understanding of climate and ocean circulation systems the project will also support teaching, training and learning. A strong outreach element is also a part of the project.

Agency
National Science Foundation (NSF)
Institute
Division of Ocean Sciences (OCE)
Type
Standard Grant (Standard)
Application #
0902985
Program Officer
Bilal U. Haq
Project Start
Project End
Budget Start
2009-08-15
Budget End
2013-07-31
Support Year
Fiscal Year
2009
Total Cost
$399,223
Indirect Cost
Name
Columbia University
Department
Type
DUNS #
City
New York
State
NY
Country
United States
Zip Code
10027