Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data https://data.eol.ucar.edu/dataset/106.449 Summary 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. Identifiers * Local archive identifier: 106.449 Citation Finney, B., et al. 2014. Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://data.eol.ucar.edu/dataset/106.449 Accessed 20 Apr 2024. If you plan to cite this dataset in a publication, please email us at: datahelp@eol.ucar.edu We may be able to provide an updated citation that includes a DOI. Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * ACADIS: Advanced Cooperative Arctic Data and Information Service https://data.eol.ucar.edu/project/ACADIS * ARCSS: NSF Arctic System Science https://data.eol.ucar.edu/project/ARCSS Additional information * Spatial Type: multiple * Frequency: other * Language: English Grant Code 0909310 ISO Topic Categories * inlandWaters Categories * Arctic * Biogeochemical * Chemistry * Ecology * Models/Analyses * Paleoclimatology Platforms * Field Surveys Instruments * Sediment Corers GCMD Science Keywords * EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > ORGANIC MATTER * EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NUTRIENTS > ORGANIC MATTER * EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS * EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER CHEMISTRY * EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > LAKE/POND * EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > BIOGENIC SEDIMENTS Related links * companion: 106.266: Late Holocene Climatic and Environmental Change Inferred from Arctic Lake Sediments https://data.eol.ucar.edu/dataset/106.266 * info: Holocene climate change and carbon cycling in a groundwater-fed, boreal forest lake: Dune Lake, Alaska http://link.springer.com/article/10.1007%2Fs10933-012-9617-2 * download: NOAA Paleoclimatology: Holocene Paleoenvironmental Records from Arctic Lake Sediment https://www.ncdc.noaa.gov/paleo/study/13076 * homepage: ARCSS EOL Webpage https://www.eol.ucar.edu/field_projects/arcss * info: ARCSS Data Policy https://data.eol.ucar.edu/arctic_projects/arcss/Data_Policy.html Temporal coverage * Begin datetime: 1000-01-01 00:00:00 * End datetime: 2014-06-11 00:00:00 Spatial coverage * Maximum (North) Latitude: 64.4232 * Minimum (South) Latitude: 64.4232 * Minimum (West) Longitude: -149.9043 * Maximum (East) Longitude: -149.9043 Primary contact information * pointOfContact: Bruce P. Finney https://data.eol.ucar.edu/contact/show/1623 Additional contact information * author: Bruce P. Finney https://data.eol.ucar.edu/contact/show/1623 * author: Nancy H. Bigelow https://data.eol.ucar.edu/contact/show/1624 * author: Valerie A. Barber https://data.eol.ucar.edu/contact/show/1625 * author: Mary E. Edwards https://data.eol.ucar.edu/contact/show/1626 * principalInvestigator: Bruce P. Finney https://data.eol.ucar.edu/contact/show/1623 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/106.449?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/106.449?format=isotc211