| NSF Org: |
EAR Division Of Earth Sciences |
| Recipient: |
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| Initial Amendment Date: | April 21, 2011 |
| Latest Amendment Date: | February 11, 2013 |
| Award Number: | 1052848 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Jessica Robin
jrobin@nsf.gov (703)292-8416 EAR Division Of Earth Sciences GEO Directorate for Geosciences |
| Start Date: | April 15, 2011 |
| End Date: | March 31, 2014 (Estimated) |
| Total Intended Award Amount: | $114,491.00 |
| Total Awarded Amount to Date: | $136,571.00 |
| Funds Obligated to Date: |
FY 2013 = $0.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
3451 WALNUT ST STE 440A PHILADELPHIA PA US 19104-6205 (215)898-7293 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
3451 WALNUT ST STE 440A PHILADELPHIA PA US 19104-6205 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): |
Geophysics, Geomorphology & Land-use Dynam |
| Primary Program Source: |
01001314DB NSF RESEARCH & RELATED ACTIVIT |
| Program Reference Code(s): | |
| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.050 |
ABSTRACT
The goal of this research is to synthesize a database of sea-level observations in a systematic and rigorous fashion for the Atlantic coast of North America, Bermuda and the Caribbean for the last 20,000 years. The database will facilitate the interpretation of relative sea-level (RSL) change on a regional scale and enable the tuning and refinement of Earth system models that focus on predicting RSL change and its spatial variability. The database consists of 60 study locations, permitting a suite of geophysical parameters to be constrained. Earth?s lower mantle viscosity will be defined by near-field and ice-margin RSL data from the Atlantic coast of Canada and northeastern United States while the upper mantle viscosity will be reliant on intermediate-field RSL data from the mid Atlantic. Far-field RSL data from the southern United States and Caribbean will constrain ice-equivalent meltwater input. The database will be further used to decontaminate 20th century rates of sea-level rise from tides gauges to reveal spatial variability related to ocean mass and volume changes.
At the heart of this project is a database of sea level from North America (the Atlantic coast of Canada and the United States) and the Caribbean that stretches back 20,000 years. This will be significant to a number of disciplines in the Earth sciences. For example, careful reconstruction of sea levels from the past will reveal the contribution from land-based ice to sea-level change during deglaciation after the last ice age. In addition, the data will provide vital constraints on key parameters in geophysical models of the Earth that are used in a variety of other applications (e.g., plate tectonics, glaciology and paleoclimate). Overall, the observations will extend the time range of comparisons with historical and present-day changes. Consequently, this research promises to increase our understanding of the driving mechanisms of sea level change and enhance our predictions of 21st century sea-level rise. The research will also provide an important and unique contribution to the assessment of national hazards with respect to sea-level rise and coastal responses.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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