noaa-lake-38503 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 2025-04-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake Stóra Viðarvatn, Iceland Biomarker Data over the past 10,900 years 2023-09-25 publication doi:10.25921/y2ek-1152 noaa-lake-38503 NCEI DSI 1200_02 NCEI DSI 1200_01 Ardenghi, N. originator Ardenghi, N. author Harning, D.J. originator Harning, D.J. author Raberg, J. originator Raberg, J. author Holman, B.R. originator Holman, B.R. author Thordarson, T. originator Thordarson, T. author Geirsdóttir, Á. originator Geirsdóttir, Á. author Miller, G.H. originator Miller, G.H. author Sepúlveda, J. originator Sepúlveda, J. 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 paleolimnology with a geographic location of Iceland, Northern Europe. The time period coverage is from 10849 to 13 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 > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology > mineralogy earth science > paleoclimate > paleolimnology > geochemistry earth science > paleoclimate > paleolimnology > age control 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 Last Glacial Maximum Last Interglacial Other Reconstruction centennial resolution decadal resolution drought trends theme What: nitrogen; Material: null What: biogenic silica; Material: null What: C23 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: organic compound; Material: null What: C29 n-alkane; Material: null What: C30 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: organic compound; Material: null What: C22 n-alkane; Material: null What: C26 n-alkane; Material: null What: C31 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: organic compound; Material: null What: organic compound; Material: null What: age; Material: null What: carbon; Material: null What: C33 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: depth; Material: null What: C20 n-alkane; Material: null What: C24 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: coprostanol; Material: null What: organic compound; Material: null What: organic compound; Material: null What: C19 n-alkane; Material: null What: C27 n-alkane; Material: null What: C35 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: organic compound; Material: null What: C28 n-alkane; Material: null What: C32 n-alkane; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: polycyclic aromatic hydrocarbon; Material: null What: organic compound; Material: null What: delta 13C; Material: null What: C21 n-alkane; Material: null What: C25 n-alkane; Material: null What: C34 n-alkane; Material: null What: organic compound; 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 > Europe > Northern Europe > Iceland > Lake Stóra Viðarvatn > LATITUDE 66.2368 > LONGITUDE -15.8378 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: Ardenghi, N.; Harning, D.J.; Raberg, J.; Holman, B.R.; Thordarson, T.; Geirsdóttir, Á.; Miller, G.H.; Sepúlveda, J. (2023-09-25): NOAA/WDS Paleoclimatology - Lake Stóra Viðarvatn, Iceland Biomarker Data over the past 10,900 years. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/y2ek-1152. 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. A Holocene history of climate, fire, landscape evolution, and human activity in northeastern Iceland 2024 publication Ardenghi, N., Harning, D. J., Raberg, J. H., Holman, B. R., Thordarson, T., Geirsdóttir, Á., Miller, G. H., and Sepúlveda, J. author Climate of the Past publisher https://doi.org/10.5194/cp-20-1087-2024 HTTPS Web Browser Associated Reference published 2024 Ardenghi, N., Harning, D. J., Raberg, J. H., Holman, B. R., Thordarson, T., Geirsdóttir, Á., Miller, G. H., and Sepúlveda, J., 2024: A Holocene history of climate, fire, landscape evolution, and human activity in northeastern Iceland. Climate of the Past, 20, 1087–1123, 10.5194/cp-20-1087-2024 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 10849 cal yr BP to 13 cal yr BP; -15.8378 -15.8378 66.2368 66.2368 Study Coordinates 66.2368 -15.8378 -8899 1937 STUDY NOTES: Biomarkers from a lacustrine core bearing info on local productivity, erosion, fire regimes, human presence. Provided Keywords: Total carbon, d13C, carbon/nitrogen, biogenic silica, policyclic aromatic hydrocarbons, faecal sterols, n-alkanes ABSTRACT SUPPLIED BY ORIGINATOR: Paleoclimate reconstructions across Iceland provide a template for past changes in climate across the northern North Atlantic, a crucial region due to its position relative to the global northward heat transport system and its vulnerability to climate change. The roles of orbitally driven summer cooling, volcanism, and human impact as triggers of local environmental changes in the Holocene of Iceland remain debated. While there are indications that human impact may have reduced environmental resilience during late Holocene summer cooling, it is still difficult to resolve to what extent human and natural factors affected Iceland's late Holocene landscape instability. Here, we present a continuous Holocene fire record of northeastern Iceland from proxies archived in Stóra Viðarvatn sediment. We use pyrogenic polycyclic aromatic hydrocarbons (pyroPAHs) to trace shifts in fire regimes, paired with continuous biomarker and bulk geochemical records of soil erosion, lake productivity, and human presence. The molecular composition of pyroPAHs and a wind pattern reconstruction indicate a naturally driven fire signal that is mostly regional. Generally low fire frequency during most of the Holocene significantly increased at 3 ka and again after 1.5 ka BP before known human settlement in Iceland. We propose that shifts in vegetation type caused by cooling summers over the past 3 kyr, in addition to changes in atmospheric circulation, such as shifts in North Atlantic Oscillation (NAO) regime, led to increased aridity and biomass flammability. Our results show no evidence of faecal biomarkers associated with human activity during or after human colonisation in the 9th century CE. Instead, faecal biomarkers follow the pattern described by erosional proxies, pointing toward a negligible human presence and/or a diluted signal in the lake's catchment. However, low post-colonisation levels of pyroPAHs, in contrast to an increasing flux of erosional bulk proxies, suggest that farming and animal husbandry may have suppressed fire frequency by reducing the spread and flammability of fire-prone vegetation (e.g. heathlands). Overall, our results describe a fire frequency heavily influenced by long-term changes in climate through the Holocene. They also suggest that human colonisation had contrasting effects on the local environment by lowering its resilience to soil erosion while increasing its resilience to fire. 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/y2ek-1152 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/38503 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/europe/iceland/ardenghi2023-20-svid-02.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