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  • 1
    Digitale Medien
    Digitale Medien
    Climate change The south–north connection (2006)
    [s.l.] : Nature Publishing Group
    Nature 444 (2006), S. 152-153 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Over the past 20 years, the analysis of ice cores has been transforming our understanding of past climate. Most notably, the Vostok core from Antarctica provided remarkable evidence of the correspondence between temperature and atmospheric carbon dioxide concentrations over the past 420,000 years. ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/444152a
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Millennial-scale storminess variability in the northeastern United States during the Holocene epoch (2002)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 419 (2002), S. 821-824 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] For the purpose of detecting the effects of human activities on climate change, it is important to document natural change in past climate. In this context, it has proved particularly difficult to study the variability in the occurrence of extreme climate events, such as storms with exceptional ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/nature01132
    Standort Signatur Einschränkungen Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    Timing is everything in a game of two hemispheres (1998)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 394 (1998), S. 717-718 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] What causes ice ages, and other episodes of violent climate change? One clue comes from a new study of ice cores, which, unexpectedly, seems to show rapid warming events happening first in the Southern Hemisphere. Leads and lags are at the heart of the palaeoclimate approach to ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/29386
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
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    Unbekannt
    Low resolution stable isotopes of ice core Taylor Dome
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): Age model; Age model, st9507 (Steig, 1996, PhD Thesis Univ Washington, Seattle); Antarctica; DEPTH, ice/snow; Electromechanical drill; EMD; Sampling/drilling ice; Taylor_Dome; TAYLOR_DOME; TD; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 1500 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 5
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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 Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 6
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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 Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 7
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    Unbekannt
    Age model and delta deuterium of ice core Taylor Dome from 20 to 10 kyr (2006)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-18
    Schlagwort(e): Age model; Age model, optional; Age model, st9810; Age model, Steig et al (1998); Antarctica; DEPTH, ice/snow; Electromechanical drill; EMD; Sampling/drilling ice; Taylor_Dome; TAYLOR_DOME; TD; δ Deuterium
    Materialart: Dataset
    Format: text/tab-separated-values, 600 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
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    Unbekannt
    Age model and delta deuterium of ice core Taylor Dome to 12 kyr (2006)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-18
    Schlagwort(e): Age, maximum/old; Age, minimum/young; Age model, st9810; Antarctica; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Electromechanical drill; EMD; Sampling/drilling ice; Taylor_Dome; TAYLOR_DOME; TD; δ Deuterium
    Materialart: Dataset
    Format: text/tab-separated-values, 1791 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 9
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    Unbekannt
    Database of Antarctic snow isotopic composition (2008)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-18
    Schlagwort(e): -; Accumulation of snow/ice per year; Calculated; Calculated average/mean values; Comment; Country; Deuterium excess; Deuterium excess, maximum; Deuterium excess, minimum; Deuterium excess, standard deviation; Distance; Ice floe type; International Polar Year (2007-2008); IPY; LATITUDE; LONGITUDE; Number of values averaged at depth horizon; ORDINAL NUMBER; Quality code; Reference/source; Sample code/label; Sampling date; Temperature, ice/snow; δ18O, maximum; δ18O, minimum; δ18O, standard deviation; δ18O, water; δ Deuterium; δ Deuterium, maximum; δ Deuterium, minimum; δ Deuterium, standard deviation
    Materialart: Dataset
    Format: text/tab-separated-values, 16434 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
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    Water stable isotope record of ice core WAIS divide (2018)
    PANGAEA
    In:  Supplement to: Steig, Eric J; Ding, Quinghua; White, James W C; Küttel, Meinrad; Rupper, Summer B; Neumann, T A; Neff, Peter D; Gallant, Ailie J E; Mayewski, Paul Andrew; Taylor, Kendrick C; Hoffmann, Georg; Dixon, Daniel A; Schoenemann, Spruce W; Markle, Bradley R; Fudge, Tyler J; Schneider, David P; Schauer, Andrew J; Teel, Rebecca P; Vaughn, Bruce H; Burgener, Landon; Williams, Jessica; Korotkikh, Elena (2013): Recent climate and ice-sheet changes in West Antarctica compared with the past 2,000 years. Nature Geoscience, 6(5), 372-375, https://doi.org/10.1038/NGEO1778
    Details
    Publikationsdatum: 2024-03-18
    Beschreibung: Changes in atmospheric circulation over the past five decades have enhanced the wind-driven inflow of warm ocean water onto the Antarctic continental shelf, where it melts ice shelves from below. Atmospheric circulation changes have also caused rapid warming over the West Antarctic Ice Sheet, and contributed to declining sea-ice cover in the adjacent Amundsen-Bellingshausen seas. It is unknown whether these changes are part of a longer-term trend. Here, we use water-isotope (d18O) data from an array of ice-core records to place recent West Antarctic climate changes in the context of the past two millennia. We find that the d18O of West Antarctic precipitation has increased significantly in the past 50 years, in parallel with the trend in temperature, and was probably more elevated during the 1990s than at any other time during the past 200 years. However, d18O anomalies comparable to those of recent decades occur about 1% of the time over the past 2,000 years. General circulation model simulations suggest that recent trends in d18O and climate in West Antarctica cannot be distinguished from decadal variability that originates in the tropics. We conclude that the uncertain trajectory of tropical climate variability represents a significant source of uncertainty in projections of West Antarctic climate and ice-sheet change.
    Schlagwort(e): Antarctica, west; DEPTH, ice/snow; ICEDRILL; Ice drill; WAIS_divide; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 601 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
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