NOAA/WDS Paleoclimatology - Kelly fire data from Reunion Lake, Yukon Flats, Alaska - IMPD USREL008
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Fire. The data include parameters of fire history|paleolimnology with a geographic location of Alaska, United States Of America. The time period coverage is from 5404 to -59 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
- Cite as: Kelly, R.F.; Chipman, M.L.; Higuera, P.E.; Stefanova, I.; Brubaker, L.B.; Hu, F.S. (2013-07-06): NOAA/WDS Paleoclimatology - Kelly fire data from Reunion Lake, Yukon Flats, Alaska - IMPD USREL008. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/7mpe-ds93. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/7mpe-ds93
- noaa-fire-15714
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-fire-15714
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Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact
NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 5404 cal yr BP to -59 cal yr BP; |
Time Period | -3454 to 2009 |
Spatial Bounding Box Coordinates |
N: 66.00925
S: 66.00925
E: -146.1078
W: -146.1078
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Spatial Coverage Map |
General Documentation |
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information |
STUDY NOTES: Chronology and macroscopic charcoal counts (number of pieces >180 microns) from Reunion Lake sediments Yukon Flats, Alaska; Entity name, RE08 (Internal lab code); Contact person, Kelly R.; Sampling date, 2008-07-14; Sampling device, All cores were taken with a combination of 7.5 cm livingstone, 5 cm livingstone, and 7.5 cm polycarbonate tube; Water depth(cm), 770; Sample storage, All cores have archive halves intact, and working halves sliced at 0.25-cm resolution. These are kept at 4°C in the Hu Lab, University of Illinois, Urbana.; Analysis method, Macroscopic charcoal counts. Please see Kelly et al. 2013 for details; Location Description, Yukon Flats Alaska;
ABSTRACT SUPPLIED BY ORIGINATOR: Wildfire activity in boreal forests is anticipated to increase dramatically, with far-reaching ecological and socioeconomic consequences. Paleorecords are indispensible for elucidating boreal fire regime dynamics under changing climate, because fire return intervals and successional cycles in these ecosystems occur over decadal to centennial timescales. We present charcoal records from 14 lakes in the Yukon Flats of interior Alaska, one of the most flammable ecoregions of the boreal forest biome, to infer causes and consequences of fire regime change over the past 10,000 y. Strong correspondence between charcoal-inferred and observational fire records shows the fidelity of sedimentary charcoal records as archives of past fire regimes. Fire frequency and area burned increased ~6,000–3,000 y ago, probably as a result of elevated landscape flammability associated with increased Picea mariana in the regional vegetation. During the Medieval Climate Anomaly (MCA; ~1,000–500 cal B.P.), the period most similar to recent decades, warm and dry climatic conditions resulted in peak biomass burning, but severe fires favored less-flammable deciduous vegetation, such that fire frequency remained relatively stationary. These results suggest that boreal forests can sustain high severity fire regimes for centuries under warm and dry conditions, with vegetation feedbacks modulating climate–fire linkages. The apparent limit to MCA burning has been surpassed by the regional fire regime of recent decades, which is characterized by exceptionally high fire frequency and biomass burning. This extreme combination suggests a transition to a unique regime of unprecedented fire activity. However, vegetation dynamics similar to feedbacks that occurred during the MCA may stabilize the fire regime, despite additional warming. |
Purpose | Records of past fire occurrence from tree rings, charcoal found in lake sediments, and other proxies. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. Additional information on the International Multiproxy Database (IMPD) dataset procedures are also available. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2024-03-15
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