| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | August 6, 2019 |
| Latest Amendment Date: | June 14, 2024 |
| Award Number: | 1903721 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Mea S. Cook
mcook@nsf.gov (703)292-7306 AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | September 1, 2019 |
| End Date: | August 31, 2025 (Estimated) |
| Total Intended Award Amount: | $504,060.00 |
| Total Awarded Amount to Date: | $504,060.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
1000 OLD MAIN HL LOGAN UT US 84322-1000 (435)797-1226 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
4820 Old Main Hill, Utah State U Logan UT US 84322-4820 |
| 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
This project aims to: 1) develop 500 year tree-ring-based data sets in California and Michigan that are distinctive in their ability to reconstruct winter conditions across distinct regions of atmospheric circulation over North America; 2) develop reconstructions of prominent winter atmospheric circulation patterns affecting climate across these regions and much of the United States; and 3) test how external forcing, across the last 500 years, may have impacted the reconstructed winter climate anomalies and associated atmospheric circulation patterns.
These continental-scale reconstructions of atmospheric circulation will rely on two distinctive sets of pre-instrumental proxy records that each represents a side of the North American winter dipole that has been characterized by increasingly extreme conditions on either side of the continent over recent decades. Hence, these winter paleo proxies can be used to help decipher drivers of winter climate, such as the polar jet stream and arctic amplification, in response to warming trends and within the context of the internal variability on inter-decadal timescales.
The potential Broader Impacts include support for early career scientists and graduate and undergraduate students as well as the development of new and innovative sets of climate data of use to the wider climate research community.
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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