Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data

This dataset contains opal, organic carbon and nitrogen contents, and organic δ13C (carbon-13) and δN15 (nitrogen-15) stable isotopes that were analyzed on a sedimentary sequence spanning the past ~12,000 years from Dune Lake, a shallow groundwater-fed lake in the boreal forest region of central interior Alaska. The unusual hydrology of this system relative to most other lakes studied for paleoclimate in this region provides a novel insight into different seasonal aspects of Alaskan paleoclimatology. The record is consistent with a general long-term decrease in wintertime precipitation, possibly accompanied by an increase in permafrost extent, over the Holocene.

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Temporal Range

  • Begin:  1000-01-01T00:00:00Z
    End:  2014-06-11T00:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1000-01-01T00:00:00Z
Temporal Range End 2014-06-11T00:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 64.42320
Bounding Box South Lat 64.42320
Bounding Box West Long -149.90430
Bounding Box East Long -149.90430
Spatial Representation N/A
Spatial Resolution N/A
Related Links

106.266 : is a companion to dataset 106.449
Additional Information N/A
Resource Format N/A
Standardized Resource Format UNDEFINED FORMAT
Asset Size N/A
Legal Constraints

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Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization NSF NCAR Earth Observing Laboratory
Distributor NSF NCAR Earth Observing Laboratory
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization NSF NCAR Earth Observing Laboratory

Author Bruce P. Finney ORCID icon
Nancy H. Bigelow ORCID icon
Valerie A. Barber
Mary E. Edwards
Publisher NSF NCAR Earth Observing Laboratory
Publication Date 2014-06-06T20:33:54
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier 106.449
Resource Version N/A
Topic Category inlandWaters
Progress completed
Metadata Date 2025-08-01T18:02:03Z
Metadata Record Identifier edu.ucar.eol::106.449
Metadata Language eng; USA
Suggested Citation Bruce P. Finney, Nancy H. Bigelow, Valerie A. Barber, Mary E. Edwards. (2014). Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data. NSF NCAR Earth Observing Laboratory. https://data.eol.ucar.edu/dataset/106.449. Accessed 23 January 2026.

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