noaa-ocean-26590 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 2024-04-30 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Arctic vegetation, temperature, and hydrology during Early Eocene transient global warming events 2019-04-09 publication doi:10.25921/bbyg-0837 noaa-ocean-26590 NCEI DSI 1200_02 NCEI DSI 1200_01 Willard, D.A. originator Willard, D.A. author Donders, T.H. originator Donders, T.H. author Reichgelt, T. originator Reichgelt, T. author Greenwood, D.R. originator Greenwood, D.R. author Sangiorgi, F. originator Sangiorgi, F. author Peterse, F. originator Peterse, F. author Nierop, K.G.J. originator Nierop, K.G.J. author Frieling, J. originator Frieling, J. author Schouten, S. originator Schouten, S. author Sluijs, A. originator Sluijs, A. 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 Paleoceanography. The data include parameters of pollen with a geographic location of Arctic Ocean. The time period coverage is from Unavailable begin date to Unavailable end date 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 ocean circulation derived from marine sediments. 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-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records 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 > pollen earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > climate reconstructions|pollen earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > pollen earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleocean > population abundance earth science > paleoclimate > paleocean > 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 What: notes; Material: null What: sample identification; Material: null What: sample identification; Material: null What: sample identification; Material: null What: precipitation; Material: null What: precipitation; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: temperature; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: precipitation; Material: null What: temperature; Material: null What: precipitation; Material: null What: sample identification; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: depth; Material: null What: depth; Material: null What: precipitation; Material: null What: precipitation; Material: null What: precipitation; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: depth at sample end; Material: null What: depth; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: sample identification; Material: null What: sample identification; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: temperature; Material: null What: precipitation; Material: null What: precipitation; Material: null What: temperature; Material: null What: temperature; Material: null What: precipitation; Material: null What: depth at sample start; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: branched glycerol dialkyl glycerol tetraether; Material: null What: temperature; Material: glycerol dialkyl glycerol tetraether index 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 Ocean > Arctic Ocean > IODP 302 > LATITUDE 87.8667 > LONGITUDE 136.1773 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: Willard, D.A.; Donders, T.H.; Reichgelt, T.; Greenwood, D.R.; Sangiorgi, F.; Peterse, F.; Nierop, K.G.J.; Frieling, J.; Schouten, S.; Sluijs, A. (2019-04-09): NOAA/WDS Paleoclimatology - Arctic vegetation, temperature, and hydrology during Early Eocene transient global warming events. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/bbyg-0837. 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. Arctic vegetation, temperature, and hydrology during Early Eocene transient global warming events 2019 publication Debra A. Willard, Timme H. Donders, Tammo Reichgelt, David R. Greenwood, Francesca Sangiorgi, Francien Peterse, Klaas G.J. Nierop, Joost Frieling, Stefan Schouten, Appy Sluijs author Global and Planetary Change publisher https://doi.org/10.1016/j.gloplacha.2019.04.012 HTTPS Web Browser Associated Reference published 2019 Debra A. Willard, Timme H. Donders, Tammo Reichgelt, David R. Greenwood, Francesca Sangiorgi, Francien Peterse, Klaas G.J. Nierop, Joost Frieling, Stefan Schouten, Appy Sluijs, 2019: Arctic vegetation, temperature, and hydrology during Early Eocene transient global warming events. Global and Planetary Change, 178, 139-152, 10.1016/j.gloplacha.2019.04.012 information crossReference sciencePaper eng; USA geoscientificInformation Paleo date information not available. 136.1773 136.1773 87.8667 87.8667 Study Coordinates 87.8667 136.1773 1950 STUDY NOTES: Pollen, palynofacies, lipid biomarker, and bioclimatic record from late Paleocene and early Eocene hyperthermals preserved in ocean sediments on Lomonosov Ridge, Arctic Ocean (IODP Site 302-4A, Arctic Coring Expedition (ACEX)). This study focused on latest Paleocene through early Eocene sediments from 365-395 mcd in the core. All pollen counts represent results of analyses by DAW. Presence of taxa outside of the count are represented by "P", which includes data from counts undertaken by THD. Samples from 388.42 - 388.02 mcd and 381.51 - 380.31 mcd were affected by drilling disturbancs, and these samples were not included in statistical analyses or bioclimatic estimates. ABSTRACT SUPPLIED BY ORIGINATOR: Early Eocene global climate was warmer than much of the Cenozoic and was punctuated by a series of transient warming events or ‘hyperthermals’ associated with carbon isotope excursions when temperature increased by 4–8 °C. The Paleocene-Eocene Thermal Maximum (PETM, ~55 Ma) and Eocene Thermal Maximum 2 (ETM2, 53.5 Ma) hyperthermals were of short duration (<200 kyr) and dramatically restructured terrestrial vegetation and mammalian faunas at mid-latitudes. Data on the character and magnitude of change in terrestrial vegetation and climate during and after the PETM and ETM2 at high northern latitudes, however, are limited to a small number of stratigraphically restricted records. The Arctic Coring Expedition (ACEX) marine sediment core from the Lomonosov Ridge in the Arctic Basin provides a stratigraphically expanded early Eocene record of Arctic terrestrial vegetation and climates. Using pollen/spore assemblages, palynofacies data, bioclimatic analyses (Nearest Living Relative, or NLR), and lipid biomarker paleothermometry, we present evidence for expansion of mesothermal (Mean Annual Temperatures 13–20 °C) forests to the Arctic during the PETM and ETM2. Our data indicate that PETM mean annual temperatures were ~2° to 3.5 °C warmer than those of the Late Paleocene. Mean winter temperatures in the PETM reached ≥5 °C (~2 °C warmer than the late Paleocene), based on pollen-based bioclimatic reconstructions and the presence of palm and Bombacoideae pollen. Increased runoff of water and nutrients to the ocean during both hyperthermals resulted in greater salinity stratification and hypoxia/anoxia, based on marked increases in concentration of massive Amorphous Organic Matter (AOM) and dominance of low-salinity dinocysts. During the PETM recovery, taxodioid Cupressaceae-dominated swamp forests were important elements of the landscape, representing intermediate climate conditions between the early Eocene hyperthermals and background conditions of the late Paleocene. 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. 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Native Format(s) https://doi.org/10.25921/bbyg-0837 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/26590 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-taxa-present.txt HTTPS Download /contributions_by_author/willard2019/willard2019-taxa-present.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-taxa-climate.txt HTTPS Download /contributions_by_author/willard2019/willard2019-taxa-climate.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-pollencnts.txt HTTPS Download /contributions_by_author/willard2019/willard2019-pollencnts.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-faciescnts.txt HTTPS Download /contributions_by_author/willard2019/willard2019-faciescnts.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-brgdgt-mat.txt HTTPS Download /contributions_by_author/willard2019/willard2019-brgdgt-mat.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/willard2019/willard2019-bioclimestimates.txt HTTPS Download /contributions_by_author/willard2019/willard2019-bioclimestimates.txt Original Data and Full Metadata download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21