noaa-lake-13218 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2024-06-26 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake Braya Sø, Greenland 7,000 Year Temperature Reconstructions 2012-08-29 publication doi:10.25921/cp34-zb62 noaa-lake-13218 NCEI DSI 1200_02 NCEI DSI 1200_01 von Gunten, L. originator von Gunten, L. author D'Andrea, W.J. originator D'Andrea, W.J. author Bradley, R.S. originator Bradley, R.S. author Huang, Y. originator Huang, Y. author NOAA National Centers for Environmental Information publisher tableDigital 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 climate reconstructions|paleolimnology with a geographic location of Greenland. The time period coverage is from 6949 to -55 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. 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. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-lake.png Paleoclimatology - Lake PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > climate reconstructions|paleolimnology earth science > paleoclimate > paleolimnology > reconstruction theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Air Temperature Reconstruction theme What: lake surface temperature; Material: alkenone unsaturation index What: lake surface temperature; Material: alkenone unsaturation index What: lake surface temperature; Material: alkenone unsaturation index What: age; Material: null What: lake surface temperature; Material: alkenone unsaturation index What: surface temperature; Material: alkenone unsaturation index What: surface temperature; Material: null What: North Atlantic Oscillation Index; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > North America > Greenland > Braya Sø > LATITUDE 66.9875 > LONGITUDE -51.0333 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: von Gunten, L.; D'Andrea, W.J.; Bradley, R.S.; Huang, Y. (2012-08-29): NOAA/WDS Paleoclimatology - Lake Braya Sø, Greenland 7,000 Year Temperature Reconstructions. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/cp34-zb62. Accessed [date]. otherRestrictions 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. otherRestrictions 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 otherRestrictions None otherRestrictions 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. Proxy-to-proxy calibration: Increasing the temporal resolution of quantitative climate reconstructions 2012 publication von Gunten, L., W.J. D'Andrea, R.S. Bradley, and Y. Huang author Scientific Reports publisher https://doi.org/10.1038/srep00609 HTTPS Web Browser Associated Reference published 2012 von Gunten, L., W.J. D'Andrea, R.S. Bradley, and Y. Huang, 2012: Proxy-to-proxy calibration: Increasing the temporal resolution of quantitative climate reconstructions. Scientific Reports, 2, , 10.1038/srep00609 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: -4999 CE to 2005 CE; Date Range: 6949 cal yr BP to -55 cal yr BP; -51.0333 -51.0333 66.9875 66.9875 Study Coordinates 66.9875 -51.0333 -4999 2005 STUDY NOTES: High-resolution temperature reconstructions based on alkenone data and scanning reflectance spectroscopy measurements from sediments collected in Lake Braya Sø, West Greenland. Free lipids were extracted from core BS01-01, freeze-dried and homogenized. Alkenone samples at 0.5 cm intervals were quantified by gas-chromatography-flame-ionization-detection. The VIS-RS measurements were conducted on an overlapping core (BS03-01) at 2mm intervals. Relative Absorption Band Depth at 660-760 nm was utilized for the reconstructions. Lake Braya Sø, West Greenland: 66°59'15"N, 51°02'0"W, 170m elev, 24m depth ABSTRACT SUPPLIED BY ORIGINATOR: High-resolution paleoclimate reconstructions are often restricted by the difficulties of sampling geologic archives in great detail and the analytical costs of processing large numbers of samples. Using sediments from Lake Braya Sø, Greenland, we introduce a new method that provides a quantitative high-resolution paleoclimate record by combining measurements of the alkenone unsaturation index (UK37) with non-destructive scanning reflectance spectroscopic measurements in the visible range (VIS-RS). The proxy-to-proxy (PTP) method exploits two distinct calibrations: the in situ calibration of UK37 to lake water temperature and the calibration of scanning VIS-RS data to down core UK37 data. Using this approach, we produced a quantitative temperature record that is longer and has 5 times higher sampling resolution than the original UK37 time series, thereby allowing detection of temperature variability in frequency bands characteristic of the AMO over the past 7,000 years. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor 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. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/cp34-zb62 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/13218 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/lake HTTPS Information NCEI Lake Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/greenland/braya-so2012-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/greenland/braya-so2012-interp-noaa.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21