noaa-icecore-17883 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 2024-11-08 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - GRIP Depth Age Scale from Flow Modeling 1997-11-30 publication doi:10.25921/51yz-wt53 noaa-icecore-17883 NCEI DSI 1200_02 NCEI DSI 1200_01 Johnsen, S.J. originator Johnsen, S.J. author Clausen, H.B. originator Clausen, H.B. author Dansgaard, W. originator Dansgaard, W. author Gundestrup, N. originator Gundestrup, N. author Hammer, C.U. originator Hammer, C.U. author Andersen, U. originator Andersen, U. author Andersen, K.K. originator Andersen, K.K. author Hvidberg, C.S. originator Hvidberg, C.S. author Dahl-Jensen, D. originator Dahl-Jensen, D. author Steffensen, J.P. originator Steffensen, J.P. author Shoji, H. originator Shoji, H. author Sveinbjörnsdóttir, A.E. originator Sveinbjörnsdóttir, A.E. author White, J.W.C. originator White, J.W.C. author Jouzel, J. originator Jouzel, J. author Fisher, D.A. originator Fisher, D.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 Ice Core. The data include parameters of ice cores with a geographic location of Greenland. The time period coverage is from 248763 to -39 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 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. 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-icecore.png Paleoclimatology - Ice Core PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Ice Core Records Earth Science > Paleoclimate > Ice Core 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 > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice core > 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 What: ice age; Material: null What: depth; 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 > GRIP > LATITUDE 72.58 > LONGITUDE -37.63 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: Johnsen, S.J.; Clausen, H.B.; Dansgaard, W.; Gundestrup, N.; Hammer, C.U.; Andersen, U.; Andersen, K.K.; Hvidberg, C.S.; Dahl-Jensen, D.; Steffensen, J.P.; Shoji, H.; Sveinbjörnsdóttir, A.E.; White, J.W.C.; Jouzel, J.; Fisher, D.A. (1997-11-30): NOAA/WDS Paleoclimatology - GRIP Depth Age Scale from Flow Modeling. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/51yz-wt53. 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. The d18O record along the Greenland Ice Core Project deep ice core and the problem of possible Eemian climatic instability 1997 publication Sigfus J. Johnsen, Henrik B. Clausen, Willi Dansgaard, Niels S. Gundestrup, Claus U. Hammer, Uffe Andersen, Katrine K. Andersen, Christine S. Hvidberg, Dorthe Dahl‐Jensen, Jorgen P. Steffensen, Hitoshi Shoji, Arny E. Sveinbjornsdottir, Jim White, Jean Jouzel, David Fisher author Journal of Geophysical Research: Oceans publisher https://doi.org/10.1029/97JC00167 HTTPS Web Browser Associated Reference published 1997 Sigfus J. Johnsen, Henrik B. Clausen, Willi Dansgaard, Niels S. Gundestrup, Claus U. Hammer, Uffe Andersen, Katrine K. Andersen, Christine S. Hvidberg, Dorthe Dahl‐Jensen, Jorgen P. Steffensen, Hitoshi Shoji, Arny E. Sveinbjornsdottir, Jim White, Jean Jouzel, David Fisher, 1997: The d18O record along the Greenland Ice Core Project deep ice core and the problem of possible Eemian climatic instability. Journal of Geophysical Research: Oceans, 102, 26397-26410, 10.1029/97JC00167 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 248763 cal yr BP to -39 cal yr BP; -37.63 -37.63 72.58 72.58 Study Coordinates 72.58 -37.63 -246813 1989 STUDY NOTES: This file contains the GRIP timescale ss09. ABSTRACT SUPPLIED BY ORIGINATOR: Over 70,000 samples from the 3029-m-long Greenland Ice Core Project (GRIP) ice core drilled on the top of the Greenland Ice Sheet (Summit) have been analyzed for d8O. A highly detailed and continuous d8O profile has thus been obtained and is discussed in terms of past temperatures in Greenland. We also discuss a three-core stacked annual d8O profile for the past 917 years. The short-term (<50 years) variability of the annual d8O signal is found to be 1 per mil in the Holocene, and estimates for the coldest parts of the last glacial are 3 per mil or higher. These data also provide insights into possible disturbances of the stratigraphic layering in the core which seems to be sound down to the onset of the Eemian. Spectral analysis of highly detailed sequences of the profile helps determine the smoothing of the d8O signal, which for the Holocene ice is found to be considerably stronger than expected. We suggest this is due to a process involving diffusion of water molecules along crystal boundaries in the recrystallizing ice matrix. Deconvolution techniques were employed for restoring with great confidence the highly attenuated annual d8O signal in the Holocene. We confirm earlier findings of dramatic temperature changes in Greenland during the last glacial cycle. Abrupt and strong climatic shifts are also found within the Eem/Sangamon Interglaciation, which is normally recorded as a period of warm and stable climate in lower latitudes. The stratigraphic continuity of the Eemian layers is consequently discussed in section 3 of this paper in terms of all pertinent data which we are not able to reconcile. 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/10.25921/51yz-wt53 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/17883 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/ice-core HTTPS Information NCEI Ice Core Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/icecore/greenland/summit/grip/depthage/gripage.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