| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | May 26, 2009 |
| Latest Amendment Date: | May 26, 2009 |
| Award Number: | 0903093 |
| Award Instrument: | Standard Grant |
| Program Manager: |
David Verardo
AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | June 1, 2009 |
| End Date: | May 31, 2013 (Estimated) |
| Total Intended Award Amount: | $400,603.00 |
| Total Awarded Amount to Date: | $400,603.00 |
| Funds Obligated to Date: |
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| ARRA Amount: | $400,603.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
845 N PARK AVE RM 538 TUCSON AZ US 85721 (520)626-6000 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
845 N PARK AVE RM 538 TUCSON AZ US 85721 |
| 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): | Paleoclimate |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.050 |
ABSTRACT
Funding is provided to help characterize patterns of Holocene drought using new cave records from the Southwestern U.S. to better understand mechanisms of hydro-climatic variability in this arid region.
The research is centered on the following science hypotheses: i) the North American monsoon intensified during the mid-Holocene due to higher local solar insolation; ii) regional hydro-climate undergoes substantial variability on multi-decadal to century time scales that are unrecognized in instrumental data and perhaps underrepresented by the comparatively shorter tree-ring reconstructions; iii) the past millennium experienced abrupt transitions among decadal/multi-decadal dry intervals; and iv) southwest drought can be linked to large-scale ocean-atmosphere forcing from both the Pacific and Atlantic Oceans.
The broader impacts involve supporting students and providing data of potential use for regional water management.
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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