noaa-cave-16402 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 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Negev Desert, Israel 350KYr Speleothem Stable Isotope Data 2014-03-28 publication noaa-cave-16402 NCEI DSI 1200_01 Vaks, A. originator Vaks, A. author Bar-Matthews, M. originator Bar-Matthews, M. author Matthews, A. originator Matthews, A. author Ayalon, A. originator Ayalon, A. author Frumkin, A. originator Frumkin, 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 Cave. The data include parameters of speleothems with a geographic location of Israel, Middle East. The time period coverage is from 338000 to 87300 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, and other aspects of climate derived from mineral deposits found in caves. 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-cave.png Paleoclimatology - Speleothem PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems Earth Science > Paleoclimate > Land Records > Cave Deposits 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 > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > carbon isotopes earth science > paleoclimate > speleothems > oxygen 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 hydrology theme Continent > Asia > Western Asia > Middle East > Israel> Even-Sid-Ramon Caves > LATITUDE 30.6397 > LONGITUDE 34.8099 place otherRestrictions Cite as: Vaks, A.; Bar-Matthews, M.; Matthews, A.; Ayalon, A.; Frumkin, A. (2014-03-28): NOAA/WDS Paleoclimatology - Negev Desert, Israel 350KYr Speleothem Stable Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/16402. 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. 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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. Middle-Late Quaternary paleoclimate of northern margins of the Saharan-Arabian Desert: reconstruction from speleothems of Negev Desert, Israel 2010 publication Anton Vaks, Miryam Bar-Matthews, Alan Matthews, Avner Ayalon, Amos Frumkin author Quaternary Science Reviews publisher https://doi.org/10.1016/j.quascirev.2010.06.014 HTTPS Web Browser Associated Reference published 2010 Anton Vaks, Miryam Bar-Matthews, Alan Matthews, Avner Ayalon, Amos Frumkin, 2010: Middle-Late Quaternary paleoclimate of northern margins of the Saharan-Arabian Desert: reconstruction from speleothems of Negev Desert, Israel. Quaternary Science Reviews, 29, 2647-2662, 10.1016/j.quascirev.2010.06.014 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 338000 cal yr BP to 87300 cal yr BP; 34.8099 34.8099 30.6397 30.6397 Study Coordinates 30.6397 34.8099 -336050 -85350 STUDY NOTES: Stable isotope (d18O and d13C) data from speleothems collected in 9 caves located in the Negev Desert, Israel. ABSTRACT SUPPLIED BY ORIGINATOR: Speleothems in arid and hyper-arid areas of Negev Desert, Israel, are used in paleoclimate reconstruction of northern margins of Saharan-Arabian Desert, focused on the following objectives: 1) precise U-Th dating of the timing of speleothem growth as an indicator of periods of humid climate, i.e. positive effective precipitation; 2) the origin of rainfall using the speleothem d18O and changes in spatial pattern of speleothem deposition and speleothem thickness along a north-south transect; 3) changes of vegetation cover based on speleothem d13C variations. During the last 350 ka major humid periods, referred to herein as Negev Humid Periods (NHP), occurred in the central and southern Negev Desert at 350-310 ka (NHP-4), 310-290 ka (NHP-3), 220-190 ka (NHP-2), and 142-109 ka (NHP-1). NHP-4, NHP-2 and NHP-1 are interglacial events, whereas NHP-3 is associated with a glacial period. During NHP-1, 2 and 3 the thickness and volume of the speleothems decrease from the north to the south, and in the most southern part of the region only a very thin flowstone layer formed during NHP-1, with no speleothem deposition occurring during NHP-2 and 3. These data imply that the Eastern Mediterranean Sea was the major source of the rainfall in northern and central Negev. More negative speleothem d18O values, relative to central parts of Israel (Soreq Cave) are attributed to Rayleigh distillation because of the increasing distance from the Mediterranean Sea. Speleothem deposition during the NHP-4 in the southern Negev was more intensive than in most of the central Negev, suggesting the prominence of the tropical rain source. Decrease in speleothem d13C during NHP events indicates growth of the vegetation cover. Nevertheless, the ranges of d13C values show that the vegetation remained semi-desert C4 type throughout the NHPs, with an additional significant carbon fraction coming from the host rock and the atmosphere. These observations, together with small thickness of the speleothem layers, favor that NHP events consisted of clusters of very short humid episodes interspersed with long droughts. NHP events were contemporaneous with climate periods with monsoon index of >=51 (cal/cm2 x day) and with the formation of sapropel layers in the Mediterranean Sea. Such simultaneous intensification of the monsoon and Atlantic-Mediterranean cyclones is probably related to the weakening of the high pressure cell above sub-tropical Atlantic Ocean, which enabled more rainfall to penetrate into the Saharan-Arabian Desert from the north and south. The contemporaneous occurrence of the NHP events and the increased monsoon rainfall could have opened migration corridors, creating climatic "windows of opportunity" for dispersals of hominids and animals out of the African continent. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-cave-16402 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/16402 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/israel/negev2010.txt HTTPS Download /speleothem/asia/israel/negev2010.txt Speleothem download https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/israel/negev2010.xls HTTPS Download /speleothem/asia/israel/negev2010.xls Speleothem download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25