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NOAA/WDS Paleoclimatology - Bona-Churchill Ice Core, Alaska 800 Year d18O Data

browse graphicPaleoclimatology - Ice Core
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 Ice Core. The data include parameters of ice cores with a geographic location of Alaska, United States Of America. The time period coverage is from 750 to -51 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: Porter, S.E.; Mosley-Thompson, E.; Thompson, L.G. (2019-09-30): NOAA/WDS Paleoclimatology - Bona-Churchill Ice Core, Alaska 800 Year d18O Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bh3d-pv86. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-icecore-27810
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DistributorNOAA 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 DescriptionDate Range: 1200 CE to 2001 CE; Date Range: 750 cal yr BP to -51 cal yr BP;
Time Period1200 to 2001
Spatial Bounding Box Coordinates
N: 61.4
S: 61.4
E: -141.7
W: -141.7
Spatial Coverage Map
General Documentation
Associated Resources
  • Ice core d18O record linked to Western Arctic sea ice variability
    • Associated Reference published 2019
      Porter, S.E., E. Mosley-Thompson, L.G. Thompson, 2019: Ice core d18O record linked to Western Arctic sea ice variability. Journal of Geophysical Research: Atmospheres, 124, 10784-10801, 10.1029/2019JD031023
Publication Dates
  • publication: 2019-09-30
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress StatusComplete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: Oxygen isotope data from the Bona-Churchill ice core (Core 1) retrieved from southeast Alaska. Annual data are presented for the 20th century as shown in Figure 7 of Porter et al. (2019). The 800 year isotope record is presented as 41-year running averages as shown in Figure 3 of Porter et al. (2019)
ABSTRACT SUPPLIED BY ORIGINATOR: Stable oxygen isotopes (d18O) in the Bona-Churchill (B-C) ice core from southeast Alaska provide a valuable, high-resolution history of climate variability and sea ice cover in the Western Arctic over the last 800 years. Multiple ice cores have been collected from the Wrangell-St. Elias Mountain Range; however, their d18O records exhibit little consistency as each core offers a unique view on local, regional, and/or global climate variability. To explore the primary mechanisms influencing the isotopic signature at the B-C site, we utilize isotope-enabled model data, reanalysis data, and observations which all indicate a strong connection between isotopes at the B-C site and Western Arctic climate, likely established by the location of the storm track in this region. Enriched B-C d18O reflects increased southerly flow and warmer waters in the Bering Sea which modulates the heat flux through the Bering Strait and into the Arctic, thereby affecting sea ice cover in the Western Arctic. The B-C d18O paleorecord shares some remarkable similarities (r = -0.80, p < 0.001) with the duration of Western Arctic sea ice cover reconstructed from a Chukchi Sea sediment core. Interestingly, during the Little Ice Age enriched d18O and reduced Western Arctic sea ice are observed and may be indicative of prolonged periods of the warm Arctic/cold continents pattern and a northwestward shift of the North Pacific storm track.
PurposeRecords of past temperature, precipitation, atmospheric trace gases, and other aspects of climate and environment derived from ice cores drilled on glaciers and ice caps around the world. 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.
Dataset Citation
  • Cite as: Porter, S.E.; Mosley-Thompson, E.; Thompson, L.G. (2019-09-30): NOAA/WDS Paleoclimatology - Bona-Churchill Ice Core, Alaska 800 Year d18O Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bh3d-pv86. Accessed [date].
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Cited Authors
  • Porter, S.E.
  • Mosley-Thompson, E.
  • Thompson, L.G.
Originators
  • Porter, S.E.
  • Mosley-Thompson, E.
  • Thompson, L.G.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywordsGlobal Change Master Directory (GCMD) Science Keywords
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ice Core Records
  • Earth Science > Paleoclimate > Ice Core Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > ice cores
  • earth science > paleoclimate > ice cores
  • earth science > paleoclimate > ice cores
  • earth science > paleoclimate > ice core > oxygen isotopes
  • sea ice
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: delta 18O; Material: bulk ice
  • What: delta 18O; Material: bulk ice
  • What: age; Material: null
Data Center keywordsGlobal Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Continent > North America > United States Of America > Alaska > Bona-Churchill col > LATITUDE 61.4 > LONGITUDE -141.7
Use Constraints
  • Cite as: Porter, S.E.; Mosley-Thompson, E.; Thompson, L.G. (2019-09-30): NOAA/WDS Paleoclimatology - Bona-Churchill Ice Core, Alaska 800 Year d18O Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bh3d-pv86. Accessed [date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • None
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Last Modified: 2023-09-01
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