noaa-icecore-22251 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 2023-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Tropical Peruvian Ice Core 50 Year Oxygen Isotope Data 2017-09-07 publication doi:10.25921/cnec-pr09 noaa-icecore-22251 NCEI DSI 1200_02 NCEI DSI 1200_01 Thompson, L.G. originator Thompson, L.G. author Davis, M.E. originator Davis, M.E. author Mosley-Thompson, E. originator Mosley-Thompson, E. author Beaudon, E. originator Beaudon, E. author Porter, S.E. originator Porter, S.E. author Kutuzov, S. originator Kutuzov, S. author Lin, P-N. originator Lin, P-N. author Mikhalenko, V.N. originator Mikhalenko, V.N. author Mountain, K.R. originator Mountain, K.R. 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 Peru. The time period coverage is from -24 to -66 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 cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice cores earth science > paleoclimate > ice core > oxygen isotopes 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: density; Material: bulk ice What: delta 18O; Material: bulk ice What: delta 18O; Material: bulk ice What: depth; Material: null What: depth; Material: null What: depth; Material: null What: depth; Material: null What: depth; Material: null What: delta 18O; Material: bulk ice What: depth; Material: null What: delta 18O; Material: bulk ice What: depth; Material: null What: age; Material: null What: delta 18O; Material: bulk ice What: delta 18O; Material: bulk ice What: depth; Material: null What: density; Material: bulk ice What: delta 18O; Material: bulk ice What: delta 18O; Material: bulk ice What: delta 18O; Material: bulk ice What: depth; Material: null What: depth; Material: null What: delta 18O; Material: bulk ice What: delta 18O; Material: bulk ice What: age; Material: null What: depth; Material: null What: depth; Material: null What: delta 18O; Material: bulk ice 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 > South America > Peru > Quelccaya Ice Cap > LATITUDE -13.93 > LONGITUDE -70.83 Continent > South America > Peru > Nevado Huascarán > LATITUDE -9 > LONGITUDE -77.5 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: Thompson, L.G.; Davis, M.E.; Mosley-Thompson, E.; Beaudon, E.; Porter, S.E.; Kutuzov, S.; Lin, P-N.; Mikhalenko, V.N.; Mountain, K.R. (2017-09-07): NOAA/WDS Paleoclimatology - Tropical Peruvian Ice Core 50 Year Oxygen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/cnec-pr09. 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. Impacts of recent warming and the 2015/16 El Nino on tropical Peruvian ice fields 2017 publication L.G. Thompson, M.E. Davis, E. Mosley-Thompson, E. Beaudon, S.E. Porter, S. Kutuzov, P-N. Lin, V.N. Mikhalenko, K.R. Mountain author Journal of Geophysical Research: Atmospheres publisher https://doi.org/10.1002/2017JD026592 HTTPS Web Browser Associated Reference published 2017 L.G. Thompson, M.E. Davis, E. Mosley-Thompson, E. Beaudon, S.E. Porter, S. Kutuzov, P-N. Lin, V.N. Mikhalenko, K.R. Mountain, 2017: Impacts of recent warming and the 2015/16 El Nino on tropical Peruvian ice fields. Journal of Geophysical Research: Atmospheres, 122, 12688-12701, 10.1002/2017JD026592 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1974 CE to 2016 CE; Date Range: -24 cal yr BP to -66 cal yr BP; -77.5 -70.83 -13.93 -9 1974 2016 STUDY NOTES: Ice core and snow pit oxygen isotope (d18O) data, at sub-annual resolution for recent decades, from two ice core locations in tropical Peru (Quelccaya and Huascarán), plus ice density and geochemical measurements made on some samples. ABSTRACT SUPPLIED BY ORIGINATOR: Data collected between 1974 and 2016 from snow pits and core samples from two Peruvian ice fields demonstrate the effect of the recent warming over the tropical Andes, augmented by El Nino, on the preservation of the climate record. As the 0C isotherm is approaching the summit of the Quelccaya ice cap in the Andes of southern Peru (5,670 meters above sea level (masl)), the distinctive seasonal d18O oscillations in the fresh snow deposited within each thermal year are attenuated at depth due to melting and percolation through the firn. This has become increasingly pronounced over 43 years. In the Andes of northern Peru, the ice field on the col of Nevado Huascarán (6050 masl) has retained its seasonal d18O variations at depth due to its higher elevation. During the 2015/2016 El Nino, snow on Quelccaya and Huascarán was isotopically (d18O) enriched and the net sum of accumulation over the previous year (NSA) was below the mean for non-El Nino years, particularly on Quelccaya (up to 64% below the mean) which was more pronounced than the NSA decrease during the comparable 1982/1983 El Nino. Interannual large‐scale oceanic and middle to upper‐level atmospheric temperatures influence d18O in precipitation on both ice fields, although the influences are variably affected by strong El Nino–Southern Oscillation events, especially on Quelccaya. The rate of ice wastage along Quelccaya's margin was dramatically higher during 2015/2016 compared with that of the previous 15 years, suggesting that warming from future El Ninos may accelerate mass loss on Peruvian glaciers. 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/cnec-pr09 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/22251 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/trop/quelccaya/quelccaya2017.xlsx HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/icecore/trop/quelccaya/ HTTPS Download /icecore/trop/quelccaya/ Data Folder download https://www.ncei.noaa.gov/pub/data/paleo/icecore/trop/huascaran/ HTTPS Download /icecore/trop/huascaran/ Data Folder download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21