noaa-lake-26370 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2019-03-29 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Lake Elsinore, California Late Glacial Biomarker and Isotope Data 2019-03-26 publication noaa-lake-26370 NCEI DSI 1200_01 Feakins, S.J. originator Feakins, S.J. author Wu, M.S. originator Wu, M.S. author Ponton, C. originator Ponton, C. author Tierney, J.E. originator Tierney, J.E. 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 (carbon isotopes) with a geographic location of California, United States Of America. The time period coverage is from 32256 to 8788 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 Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-lake.png Paleoclimatology - Lake PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > paleolimnology > carbon isotopes earth science > paleoclimate > paleolimnology > geochemistry earth science > paleoclimate > paleolimnology > hydrogen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Continent > North America > United States Of America > California> Lake Elsinore > LATITUDE 33.6733 > LONGITUDE -117.3542 place otherRestrictions Cite as: Feakins, S.J.; Wu, M.S.; Ponton, C.; Tierney, J.E. (2019-03-26): NOAA/WDS Paleoclimatology - Lake Elsinore, California Late Glacial Biomarker and Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/26370. 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. Biomarkers reveal abrupt switches in hydroclimate during the last glacial in southern California 2019 publication Sarah J. Feakins, Mong Sin Wu, Camilo Ponton, Jessica E. Tierney author Earth and Planetary Science Letters publisher https://doi.org/10.1016/j.epsl.2019.03.024 HTTPS Web Browser Associated Reference published 2019 Sarah J. Feakins, Mong Sin Wu, Camilo Ponton, Jessica E. Tierney, 2019: Biomarkers reveal abrupt switches in hydroclimate during the last glacial in southern California. Earth and Planetary Science Letters, 515, 164-172, 10.1016/j.epsl.2019.03.024 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 32256 cal yr BP to 8788 cal yr BP; -117.3542 -117.3542 33.6733 33.6733 Study Coordinates 33.6733 -117.3542 -30306 -6838 STUDY NOTES: Biomarker (plant wax carbon and hydrogen isotopes and GDGTs) data and temperature reconstruction from sediments collected in Lake Elsinore, California, for 32-9 ka BP. ABSTRACT SUPPLIED BY ORIGINATOR: Reconstructions of past hydroclimate provide a means to understand precipitation responses to global ocean-atmosphere climate dynamics beyond the scope of that in the instrumental record. Late glacial climate was characterized by abrupt variability in ice and ocean dynamics, however the implications for hydroclimate are not as well known. Here we present organic geochemical proxy evidence for precipitation isotopes based on plant leaf wax hydrogen isotopic compositions (dDwax) and temperature proxy evidence based upon the branched glycerol dialkyl glycerol tetraethers (brGDGTs), that derive from the membrane lipids of bacteria, each extracted from a sedimentary archive in Lake Elsinore, California spanning 32-9 ka. We add proxy evidence for vegetation and salinity from additional biomarker analyses and compare to prior pollen and sedimentological evidence from the same core. Our record indicates a strong deglacial warming of 10C in Lake Elsinore (beginning at 14.5 ka) that accompanied a D-enrichment of precipitation of +90permil and more C4 vegetation (12-10 ka), after a cold, wet and C3-dominated phase (20-14.5 ka), indicating winter-dominated precipitation during the Last Glacial Maximum and Heinrich Stadial 1. During the late glacial (32-20 ka) we find abrupt variability, with precipitation isotopic shifts (~70 permil) that are independent of temperature swings implicating changes in storm track, rather than local temperature as drivers of the precipitation isotope signal. Temperature is however not irrelevant for hydroclimate: we find extreme warmth at 29.4 ka and 26.8 ka, the latter coincident with existing reports of an extended dry period (27.5-25.5 ka), suggesting a long hot and dry interlude during the generally cooler glacial period. We compare dDwax with speleothem d18O from Nevada, also within the winter-dominated precipitation region. Our results corroborate the Last Glacial Maximum and deglacial signals, and fill gaps revealing storm-track instability from 32-20 ka, however the pacing and magnitude of the biomarker signals merit cautious interpretation. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-lake-26370 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/26370 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake HTTPS Information NCEI Lake Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/california/elsinore2019biomarker.txt HTTP Download NCEI Direct Download Direct download links for dataset files. download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25