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  • 1
    Digitale Medien
    Digitale Medien
    Northern Hemisphere forcing of climatic cycles in Antarctica over the past 360,000 years (2007)
    [s.l.] : Nature Publishing Group
    Nature 448 (2007), S. 912-916 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The Milankovitch theory of climate change proposes that glacial–interglacial cycles are driven by changes in summer insolation at high northern latitudes. The timing of climate change in the Southern Hemisphere at glacial–interglacial transitions (which are known as terminations) ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/nature06015
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    A record of atmospheric halocarbons during the twentieth century from polar firn air (1999)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 399 (1999), S. 749-755 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Measurements of trace gases in air trapped in polar firn (unconsolidated snow) demonstrate that natural sources of chlorofluorocarbons, halons, persistent chlorocarbon solvents and sulphur hexafluoride to the atmosphere are minimal or non-existent. Atmospheric concentrations of these gases, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/21586
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    Diminishing oxygen (1992)
    [s.l.] : Nature Publishing Group
    Nature 358 (1992), S. 710-711 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A METHOD for keeping track of changes in the atmosphere's oxygen content, de-scribed by Keeling and Shertz on page 723 of this issue1, could make it possible to unravel the complexities of the carbon cycle, which is essential to any under-standing of CC〉2 variations and green-house warming. The ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/358710a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice (1998)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 391 (1998), S. 141-146 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Rapid temperature change fractionates gas isotopes in unconsolidated snow, producing a signal that is preserved in trapped air bubbles as the snow forms ice. The fractionation of nitrogen and argon isotopes at the end of the Younger Dryas cold interval, recorded in Greenland ice, demonstrates that ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/34346
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    Radiocarbon in San Diego groundwater samples (2019)
    PANGAEA
    Details
    Publikationsdatum: 2023-07-19
    Schlagwort(e): AGE; California; Carbon-14, modern; Depth, well; Dilution factor; Event label; groundwater; Identification; Isotope ratio; Sampling Well; San Diego, California, U.S.A.; SDAQ-2A; SDAQ-2B; SDAQ-3A; SDAQ-3B; SDAQ-4A; SDAQ-4B; SDBP_1A; SDBP_1B; SDBP_2B; SDBP_3; SDBP_4A; SDBP_4B; SDBP 1A; SDBP 1B; SDBP 2B; SDBP 3; SDBP 4A; SDBP 4B; SDEP_1A; SDEP_1B; SDEP_2B; SDEP_2C; SDEP_4; SDEP_5; SDEP 1A; SDEP 1B; SDEP 2B; SDEP 2C; SDEP-3A; SDEP 4; SDEP 5; SDHF1A; SDHF1B; SDHF2A; SDHF3A; SDHF3B; SDHF4C; SDHF5A; SDHF5B; SDNB-2; SDSW_2A; SDSW_2B; SDSW_4; SDSW_5; SDSW-1B; SDSW 2A; SDSW 2B; SDSW-3A; SDSW-3B; SDSW 4; SDSW 5; WELL; δ13C
    Materialart: Dataset
    Format: text/tab-separated-values, 175 data points
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  • 6
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    Unbekannt
    Inverse model output for groundwater samples from various sites in California (2019)
    PANGAEA
    Details
    Publikationsdatum: 2023-07-19
    Schlagwort(e): 180-1_n1; 180-1_n2; 180-1_n3; 180-1 #1; 180-1 #2; 180-1 #3; 180-MW_n1; 180-MW_n3; 180-MW #1; 180-MW #3; California; Event label; Fresno, California, U.S.A.; Geothermal gradient; groundwater; Identification; Inverse model output; Isotope ratio; Location; MD-10A; MD-10B; MD-11A; MD-11B; MD-1A; MD-2A; MD-3A; MD-3B; MD-4A; MD-5A; MD-5B; MD-5C; MD-6A; MD-6B; MD-7A; MD-8A; MD-9A; MD-9B; Mojave, California, U.S.A.; noble gas; Original value; Paleoclimate; Pressure, atmospheric; Sampling Well; San Diego, California, U.S.A.; SDAQ-2A; SDAQ-2B; SDAQ-3A; SDAQ-3B; SDAQ-4A; SDAQ-4B; SDBP_1A; SDBP_1B; SDBP_2B; SDBP_3; SDBP_4A; SDBP_4B; SDBP 1A; SDBP 1B; SDBP 2B; SDBP 3; SDBP 4A; SDBP 4B; SDEP_1A; SDEP_1B; SDEP_2B; SDEP_2C; SDEP_4; SDEP_5; SDEP 1A; SDEP 1B; SDEP 2B; SDEP 2C; SDEP-3A; SDEP 4; SDEP 5; SDHF1A; SDHF1B; SDHF2A; SDHF3A; SDHF3B; SDHF4C; SDHF5A; SDHF5B; SDNB-2; SDSW_2A; SDSW_2B; SDSW_4; SDSW_5; SDSW-1B; SDSW 2A; SDSW 2B; SDSW-3A; SDSW-3B; SDSW 4; SDSW 5; Temperature, annual mean; Temperature, annual mean, standard deviation; water table; Water table depth, mean; Water table depth, standard deviation; WELL
    Materialart: Dataset
    Format: text/tab-separated-values, 522 data points
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  • 7
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    Unbekannt
    Groundwater noble gas isotope measurements from various sites in California (2019)
    PANGAEA
    In:  Supplement to: Seltzer, Alan; Ng, Jessica; Danskin, Wesley; Kulongoski, Justin T; Gannon, Riley; Stute, Martin; Severinghaus, Jeffrey P (2019): Deglacial water-table decline in Southern California recorded by noble gas isotopes. Nature Communications, https://doi.org/10.1038/s41467-019-13693-2
    Details
    Publikationsdatum: 2023-07-19
    Beschreibung: Kr and Xe isotope measurements (raw and corrected), sample information, well information, and inverse model output for groundwater samples from 36 wells across California spanning three regions: 1) San Diego, 2) Fresno, 3) Mojave Desert.
    Schlagwort(e): 180-1_n1; 180-1_n2; 180-1_n3; 180-1 #1; 180-1 #2; 180-1 #3; 180-MW_n1; 180-MW_n3; 180-MW #1; 180-MW #3; California; Fresno, California, U.S.A.; groundwater; Isotope ratio; MD-10A; MD-10B; MD-11A; MD-11B; MD-1A; MD-2A; MD-3A; MD-3B; MD-4A; MD-5A; MD-5B; MD-5C; MD-6A; MD-6B; MD-7A; MD-8A; MD-9A; MD-9B; Mojave, California, U.S.A.; noble gas; Paleoclimate; Sampling Well; San Diego, California, U.S.A.; SDAQ-2A; SDAQ-2B; SDAQ-3A; SDAQ-3B; SDAQ-4A; SDAQ-4B; SDBP_1A; SDBP_1B; SDBP_2B; SDBP_3; SDBP_4A; SDBP_4B; SDBP 1A; SDBP 1B; SDBP 2B; SDBP 3; SDBP 4A; SDBP 4B; SDEP_1A; SDEP_1B; SDEP_2B; SDEP_2C; SDEP_4; SDEP_5; SDEP 1A; SDEP 1B; SDEP 2B; SDEP 2C; SDEP-3A; SDEP 4; SDEP 5; SDHF1A; SDHF1B; SDHF2A; SDHF3A; SDHF3B; SDHF4C; SDHF5A; SDHF5B; SDNB-2; SDSW_2A; SDSW_2B; SDSW_4; SDSW_5; SDSW-1B; SDSW 2A; SDSW 2B; SDSW-3A; SDSW-3B; SDSW 4; SDSW 5; water table; WELL
    Materialart: Dataset
    Format: application/zip, 3 datasets
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    DATEN PANGAEA
  • 8
    facet.materialart.
    Unbekannt
    Krypton and xenon isotope measurements from various sites in California (2019)
    PANGAEA
    Details
    Publikationsdatum: 2024-01-21
    Schlagwort(e): 180-1_n1; 180-1_n2; 180-1_n3; 180-1 #1; 180-1 #2; 180-1 #3; 180-MW_n1; 180-MW_n3; 180-MW #1; 180-MW #3; Argon; Bottle number; California; Campaign; DATE/TIME; Elevation of event; Event label; Fresno, California, U.S.A.; groundwater; Identification; Isotope ratio; Krypton; Latitude of event; Location; Longitude of event; Mass-difference-normalized, error-weighted mean isotope ratio; MD-10A; MD-10B; MD-11A; MD-11B; MD-1A; MD-2A; MD-3A; MD-3B; MD-4A; MD-5A; MD-5B; MD-5C; MD-6A; MD-6B; MD-7A; MD-8A; MD-9A; MD-9B; Mojave, California, U.S.A.; noble gas; Number; Paleoclimate; Sampling Well; San Diego, California, U.S.A.; SDAQ-2A; SDAQ-2B; SDAQ-3A; SDAQ-3B; SDAQ-4A; SDAQ-4B; SDBP_1A; SDBP_1B; SDBP_2B; SDBP_3; SDBP_4A; SDBP_4B; SDBP 1A; SDBP 1B; SDBP 2B; SDBP 3; SDBP 4A; SDBP 4B; SDEP_1A; SDEP_1B; SDEP_2B; SDEP_2C; SDEP_4; SDEP_5; SDEP 1A; SDEP 1B; SDEP 2B; SDEP 2C; SDEP-3A; SDEP 4; SDEP 5; SDHF1A; SDHF1B; SDHF2A; SDHF3A; SDHF3B; SDHF4C; SDHF5A; SDHF5B; SDNB-2; SDSW_2A; SDSW_2B; SDSW_4; SDSW_5; SDSW-1B; SDSW 2A; SDSW 2B; SDSW-3A; SDSW-3B; SDSW 4; SDSW 5; see reference(s); Uniform resource locator/link to metadata file; WELL; Xenon; δ*Kr; δ*Xe; δ132/129Xe; δ134/129Xe; δ136/129Xe; δ38/36Ar; δ40/36Ar; δ86/82Kr; δ86/83Kr; δ86/84Kr
    Materialart: Dataset
    Format: text/tab-separated-values, 1100 data points
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    facet.materialart.
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    WAIS Divide Deep ice core 0-68 ka WD2014 chronology (2019)
    PANGAEA
    Details
    Publikationsdatum: 2024-04-05
    Beschreibung: The West Antarctic Ice Sheet (WAIS) Divide deep ice core WD2014 chronology, consisting of ice age, gas age, delta-age and uncertainties therein. The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation deep ice core that provides Antarctic climate records of the past ~68 ka at unprecedented temporal resolution. The upper 2850 m (back to 31.2 ka BP; Sigl et al., 2015, Sigl et al., 2016) have been dated using annual-layer counting based on counting of annual layers observed in the chemical, dust and electrical conductivity records. The measurements were interpreted manually and with the aid of two automated methods. We validated the chronology by comparing of the cosmogenic isotope records of 10Be from WAIS Divide and 14C for IntCal13. We demonstrated that over the Holocene WD2014 was consistently accurate to better than 0.5% of the age. The chronology for the deep part of the core (below 2850m; 67.8-31.2 ka BP; Buizert et al., 2015) is based on stratigraphic matching to annual-layer-counted Greenland ice cores using globally well-mixed atmospheric methane. We calculate the WD gas age-ice age difference (Delta age) using a combination of firn densification modeling, ice-flow modeling, and a data set of d15N-N2, a proxy for past firn column thickness. The largest Delta age at WD occurs during the Last Glacial Maximum, and is 525 +/- 120 years. We synchronized the WD chronology to a linearly scaled version of the layer-counted Greenland Ice Core Chronology (GICC05), which brings the age of Dansgaard-Oeschger (DO) events into agreement with the U/Th absolutely dated Hulu Cave speleothem record.
    Schlagwort(e): Age, difference; Age, difference error; Age, error; annual-layer-counting; Antarctica; Antarctica, west; Calendar age; Calendar age, standard error; chronology; DEPTH, ice/snow; Gas age; Greenland; ice-core; ICEDRILL; Ice drill; Methane; WAIS; WAIS Divide; WDC-06A; West Antarctic Ice Sheet Divide ice core project
    Materialart: Dataset
    Format: text/tab-separated-values, 392326 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 10
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    Unbekannt
    Roosevelt Island Climate Evolution (RICE) ice core isotope record (2017)
    PANGAEA
    In:  Supplement to: Bertler, Nancy A; Conway, Howard; Dahl-Jensen, Dorthe; Emanuelsson, Urban; Winstrup, Mai; Vallelonga, Paul T; Lee, James E; Brook, Edward J; Severinghaus, Jeffrey P; Fudge, Tyler J; Keller, Elizabeth D; Baisden, W Troy; Hindmarsh, Richard C A; Neff, Peter D; Blunier, Thomas; Edwards, Ross L; Mayewski, Paul Andrew; Kipfstuhl, Sepp; Buizert, Christo; Canessa, Silvia; Dadic, Ruzica; Kjær, Helle Astrid; Kurbatov, Andrei; Zhang, Dongqi; Waddington, Edwin D; Baccolo, Giovanni; Beers, Thomas; Brightley, Hannah J; Carter, Lionel; Clemens-Sewall, David; Ciobanu, Viorela G; Delmonte, Barbara; Eling, Lukas; Ellis, Aja A; Ganesh, Shruthi; Golledge, Nicholas R; Haines, Skylar A; Handley, Michael; Hawley, Robert L; Hogan, Chad M; Johnson, Katelyn M; Korotkikh, Elena; Lowry, Daniel P; Mandeno, Darcy; McKay, Robert M; Menking, James A; Naish, Timothy R; Noerling, Caroline; Ollive, Agathe; Orsi, Anais J; Proemse, Bernadette C; Pyne, Alexander R; Pyne, Rebecca L; Renwick, James; Scherer, Reed P; Semper, Stefanie; Simonsen, Marius; Sneed, Sharon B; Steig, Eric J; Tuohy, Andrea; Ulayottil Venugopal, Abhijith; Valero Delgado, Fernando; Venkatesh, Janani; Wang, Feitang; Wang, Shimeng; Winski, Dominic A; Winton, Victoria H L; Whiteford, Arran; Xiao, Cunde; Yang, Jiao; Zhang, Xin (2018): The Ross Sea dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years. Climate of the Past, 14, 193-214, https://doi.org/10.5194/cp-14-193-2018
    Details
    Publikationsdatum: 2024-03-18
    Beschreibung: High-resolution, well-dated climate archives provide an opportunity to investigate the dynamic interactions of climate patterns relevant for future projections. Here, we present data from a new, annually-dated ice core record from the eastern Ross Sea. Comparison of the Roosevelt Island Climate Evolution (RICE) ice core records with climate reanalysis data for the 1979-2012 calibration period shows that RICE records reliably capture temperature and snow precipitation variability of the region. RICE is compared with data from West Antarctica (West Antarctic Ice Sheet Divide Ice Core) and the western (Talos Dome) and eastern (Siple Dome) Ross Sea. For most of the past 2,700 years, the eastern Ross Sea was warming with perhaps increased snow accumulation and decreased sea ice extent. However, West Antarctica cooled whereas the western Ross Sea showed no significant temperature trend. From the 17th Century onwards, this relationship changes. All three regions now show signs of warming, with snow accumulation declining in West Antarctica and the eastern Ross Sea, but increasing in the western Ross Sea. Analysis of decadal to centennial-scale climate variability superimposed on the longer term trend reveal that periods characterised by opposing temperature trends between the Eastern and Western Ross Sea have occurred since the 3rd Century but are masked by longer-term trends. This pattern here is referred to as the Ross Sea Dipole, caused by a sensitive response of the region to dynamic interactions of the Southern Annual Mode and tropical forcings.
    Schlagwort(e): AGE; Age, maximum/old; Age, minimum/young; DEPTH, ice/snow; ICEDRILL; Ice drill; Isotope ratio mass spectrometry; RICE; Roosevelt Island, Antarctica; δ Deuterium
    Materialart: Dataset
    Format: text/tab-separated-values, 8136 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
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