noaa-ocean-25390 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 2024-05-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Late Miocene to Present Global Ocean Alkenone and SST Reconstruction Data 2018-10-08 publication doi:10.25921/52j8-rt05 noaa-ocean-25390 NCEI DSI 1200_02 NCEI DSI 1200_01 Herbert, T.D. originator Herbert, T.D. author Lawrence, K.T. originator Lawrence, K.T. author Tzanova, A. originator Tzanova, A. author Peterson, L.C. originator Peterson, L.C. author Caballero-Gill, R.P. originator Caballero-Gill, R.P. author Kelly, C.S. originator Kelly, C.S. 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 climate reconstructions|paleoceanography with a geographic location of Eastern Pacific Ocean. The time period coverage is from 16036174 to 100 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 > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > climate reconstructions|paleoceanography earth science > paleoclimate > paleocean > biomarkers 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 Sea Surface Temperature Reconstruction theme What: notes; Material: null What: age; Material: null What: sea surface temperature; Material: alkenone unsaturation index What: depth at sample start; Material: null What: depth; Material: null What: age; Material: null What: sea surface temperature; Material: alkenone unsaturation index What: depth at sample end; Material: null What: alkenone unsaturation index Uk37 prime; Material: sediment What: sea surface temperature; Material: alkenone unsaturation index What: sea surface temperature; Material: alkenone unsaturation index What: notes; Material: null What: sample identification; Material: null What: notes; 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 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1021 > LATITUDE 39.088 > LONGITUDE -127.783 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1338 > LATITUDE 2.507817 > LONGITUDE -117.969633 Ocean > Pacific Ocean > South Pacific Ocean > DSDP 594 > LATITUDE -45.52 > LONGITUDE -174.95 Ocean > Atlantic Ocean > North Atlantic Ocean > ODP 982 > LATITUDE 57.517 > LONGITUDE -15.8665 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 850 > LATITUDE 1.2972 > LONGITUDE -110.5214 Ocean > Indian Ocean > ODP 722 > LATITUDE 16.6218 > LONGITUDE 59.7953 Ocean > Pacific Ocean > North Pacific Ocean > ODP 883/884 > LATITUDE 51.7 > LONGITUDE 168.05 Ocean > Atlantic Ocean > South Atlantic Ocean > ODP 1085 > LATITUDE -29.37 > LONGITUDE 13.6 Ocean > Pacific Ocean > South Pacific Ocean > ODP 1125 > LATITUDE -42.54993 > LONGITUDE -178.1665 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1010 > LATITUDE 29.768 > LONGITUDE -118.107 Ocean > Atlantic Ocean > South Atlantic Ocean > ODP 1088 > LATITUDE -41.14 > LONGITUDE 13.56 Ocean > Pacific Ocean > Eastern Pacific Ocean > ODP 1241 > LATITUDE 5.842833 > LONGITUDE -86.444667 Ocean > Pacific Ocean > South Pacific Ocean > ODP 846 > LATITUDE -3.095 > LONGITUDE -90.81833 Ocean > Pacific Ocean > North Pacific Ocean > ODP 887 > LATITUDE 54.3655 > LONGITUDE -148.4463 Ocean > Atlantic Ocean > North Atlantic Ocean > Mediterranean Sea > Central/Southern Italy > LATITUDE > LONGITUDE Ocean > Atlantic Ocean > North Atlantic Ocean > ODP 907 > LATITUDE 69.25 > LONGITUDE -12.7 Ocean > Pacific Ocean > North Pacific Ocean > ODP 1208 > LATITUDE 36.127 > LONGITUDE 158.2016 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: Herbert, T.D.; Lawrence, K.T.; Tzanova, A.; Peterson, L.C.; Caballero-Gill, R.P.; Kelly, C.S. (2018-10-08): NOAA/WDS Paleoclimatology - Late Miocene to Present Global Ocean Alkenone and SST Reconstruction Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/52j8-rt05. 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. Late Miocene Global Cooling and the Rise of Modern Ecosystems 2016 publication Herbert, T.D., K.T. Lawrence, A. Tzanova, L.C. Peterson, R. Caballero-Gill, and C.S. Kelly author Nature Geoscience publisher https://doi.org/10.1038/ngeo2813 HTTPS Web Browser Associated Reference published 2016 Herbert, T.D., K.T. Lawrence, A. Tzanova, L.C. Peterson, R. Caballero-Gill, and C.S. Kelly, 2016: Late Miocene Global Cooling and the Rise of Modern Ecosystems. Nature Geoscience, 9, 843-847, 10.1038/ngeo2813 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 16036174 cal yr BP to 100 cal yr BP; -178.1665 168.337 -45.52 69.25 -16034224 1850 STUDY NOTES: Note: age models for Sites 907 and 982 refined following publication of Herbert et al., 2016 NGS. Provided Keywords: Global ocean cooling, mid-Miocene to Present ABSTRACT SUPPLIED BY ORIGINATOR: During the late Miocene epoch, about seven million years ago, large areas of the continents experienced drying, enhanced seasonality, and a restructuring of terrestrial plant and animal communities. These changes are seen throughout the subtropics, but have typically been attributed to regional tectonic forcing. Here we present a set of globally distributed sea surface temperature records spanning the past 12 million years based on the alkenone unsaturation method. We find that a sustained late Miocene cooling occurred synchronously in both hemispheres, and culminated with ocean temperatures dipping to near-modern values between about 7 and 5.4 million years ago. The period of maximum cooling coincides with evidence for transient glaciations in the Northern Hemisphere and with a steepening of the pole-to-equator temperature gradient, as well. We thus infer that late Miocene aridity and terrestrial ecosystem changes occurred in a global context of increasing meridional temperature gradients. We conclude that a global forcing mechanism, such as the previously hypothesized decline in atmospheric CO2 levels between eight and six million years ago, is required to explain the late Miocene changes in temperature, climate and ecosystems. 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/10.25921/52j8-rt05 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/25390 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/herbert2016/herbert2016-odp982.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp982.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp907.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp907.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp887.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp887.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp883_884.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp883_884.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp850.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp850.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp846.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp846.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp722.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp722.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1338.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1338.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1241.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1241.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1208.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1208.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1125.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1125.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1088.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1088.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1085.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1085.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1021.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1021.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-odp1010.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-odp1010.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-med.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-med.txt Original Data and Full Metadata download https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/herbert2016/herbert2016-dsdp594.txt HTTPS Download /contributions_by_author/herbert2016/herbert2016-dsdp594.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