NOAA/WDS Paleoclimatology - Aishihik Basin, Yukon 12,000 Year Multiproxy Lake Sediment Data
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 Lake. The data include parameters of paleolimnology|pollen with a geographic location of Yukon Territory, Canada. The time period coverage is from 12906 to -57 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Rainville, R.A.; Gajewski, K.J. (2015-03-20): NOAA/WDS Paleoclimatology - Aishihik Basin, Yukon 12,000 Year Multiproxy Lake Sediment Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/mb4w-x094. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/mb4w-x094
- noaa-lake-18435
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-lake-18435
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
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: 12906 cal yr BP to -57 cal yr BP; |
Time Period | -10956 to 2007 |
Spatial Bounding Box Coordinates |
West: -136.9264
East: -136.9264
South: 61.2447
North: 61.2447
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: Multiproxy sediment data from Lake WA01, Aishihik Basin, southwest Yukon, Canada. Data include pollen counts, sediment physical properties, and charcoal concentration. ABSTRACT SUPPLIED BY ORIGINATOR: A 2.7 m sediment core from WA01, a small pond in Southwest Yukon, Canada (unofficial name, 61 14'41"N, 136 55'35"W, 1000 m above sea level), documents the postglacial vegetation and climate history of the Aishihik Basin. Open birch-shrub tundra established at the site ca. 10 900 cal years BP, immediately after deglaciation. Picea glauca established ca. 10 200 cal years BP, and an open spruce forest ecosystem has since remained dominant on the landscape. A gradual increase in Alnus crispa, starting ca. 6600 cal years BP, has also been noted in other studies from Central Yukon, suggesting a significant climate transition in Yukon at this time. An alternating pattern in sediment loss-on-ignition, also beginning ca. 6600 cal years BP, may be broadly related to trends in ∂18O values from the Mount Logan and Jellybean Lake oxygen isotope records, and is most likely reflective of periodic changes in available moisture in the region resulting from alterations in the strength and position of the Aleutian Low pressure system. However, millennial-scale climate variability identified in ice core and sediment records had little impact on the forests of the region. |
Purpose | Records of past climate and environment derived from lake sediment records. 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. |
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Global Change Master Directory (GCMD) Science Keywords
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Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2023-09-01
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov