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  • 2005-2009  (7)
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  • 1
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    (Table 1) Gas tie points used to correlate NorthGRIP and Vostol records (2006)
    PANGAEA
    In:  Supplement to: Landais, Amaëlle; Waelbroeck, Claire; Masson-Delmotte, Valerie (2006): On the limits of Antarctic and marine climate records synchronization: Lag estimates during marine isotopic stages 5d and 5c. Paleoceanography, 21(1), PA1001, https://doi.org/10.1029/2005PA001171
    Details
    Publikationsdatum: 2023-07-19
    Beschreibung: North Atlantic sediment records (MD95-2042), Greenland (Greenland Ice Core Project (GRIP)) and Antarctica (Byrd and Vostok) ice core climate records have been synchronized over marine isotopic stage 3 (MIS 3) (64 to 24 kyr B.P.) (Shackleton et al., 2000). The resulting common timescale suggested that MD95-2042 d18Obenthic fluctuations were synchronous with temperature changes in Antarctica (dDice or d18Oice records). In order to assess the persistency of this result we have used here the recent Greenland NorthGRIP ice core covering the last glacial inception. We transfer the Antarctic Vostok GT4 timescale to NorthGRIP d18Oice and MD95-2042 d18Oplanktonic records and precisely quantify all the relative timing uncertainties. During the rapid warming of Dansgaard-Oeschger 24, MD95-2042 d18Obenthic decrease is in phase with d18Oplanktonic decrease and therefore with NorthGRIP temperature increase, but it takes place 1700 ± 1100 years after the Antarctic warming. Thus the present study reveals that the results obtained previously for MIS 3 cannot be generalized and demonstrates the need to improve common chronologies for marine and polar archives.
    Schlagwort(e): Age, comment; Age, error; Age model; DEPTH, ice/snow; Greenland; GRIP; ISTUK; ISTUK electromechanical drill; Sampling/drilling ice
    Materialart: Dataset
    Format: text/tab-separated-values, 21 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 2
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    EPICA Dome C carbon dioxide concentrations from 650 to 391 kyr BP (2005)
    PANGAEA
    In:  Supplement to: Siegenthaler, Urs; Stocker, Thomas F; Monnin, Eric; Lüthi, Dieter; Schwander, Jakob; Stauffer, Bernhard; Raynaud, Dominique; Barnola, Jean-Marc; Fischer, Hubertus; Masson-Delmotte, Valerie; Jouzel, Jean (2005): Stable carbon cycle - Climate relationship during the Late Pleistocene. Science, 310(5752), 1313-1317, https://doi.org/10.1126/science.1120130
    Details
    Publikationsdatum: 2023-07-19
    Beschreibung: A record of atmospheric carbon dioxide (CO2) concentrations measured on the EPICA (European Project for Ice Coring in Antarctica) Dome Concordia ice core extends the Vostok CO2 record back to 650,000 years before the present (yr B.P.). Before 430,000 yr B.P., partial pressure of atmospheric CO2 lies within the range of 260 and 180 parts per million by volume. This range is almost 30% smaller than that of the last four glacial cycles; however, the apparent sensitivity between deuterium and CO2 remains stable throughout the six glacial cycles, suggesting that the relationship between CO2 and Antarctic climate remained rather constant over this interval.
    Schlagwort(e): Dome C; DRILL; Drilling/drill rig; EDC99; EPICA; European Project for Ice Coring in Antarctica
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 3
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    Unbekannt
    EPICA Dome C Ice Core 800KYr deuterium data and temperature estimates (2007)
    PANGAEA
    In:  Supplement to: Jouzel, Jean; Masson-Delmotte, Valerie; Cattani, Olivier; Dreyfus, Gabrielle; Falourd, Sonia; Hoffmann, G; Minster, Bénédicte; Nouet, Julius; Barnola, Jean-Marc; Chappellaz, Jérôme A; Fischer, Hubertus; Gallet, J C; Johnsen, Sigfús Jóhann; Leuenberger, Markus Christian; Loulergue, Laetitia; Luethi, D; Oerter, Hans; Parrenin, Frédéric; Raisbeck, Grant M; Raynaud, Dominique; Schilt, Adrian; Schwander, Jakob; Selmo, Enricomaria; Souchez, Roland A; Spahni, Renato; Stauffer, Bernhard; Steffensen, Jørgen Peder; Stenni, Barbara; Stocker, Thomas F; Tison, Jean-Louis; Werner, Martin; Wolff, Eric William (2007): Orbital and millennial Antarctic climate variability over the past 800,000 years. Science, 317(5839), 793-797, https://doi.org/10.1126/science.1141038
    Details
    Publikationsdatum: 2023-07-19
    Beschreibung: A high-resolution deuterium profile is now available along the entire European Project for Ice Coring in Antarctica Dome C ice core, extending this climate record back to marine isotope stage 20.2, ~800,000 years ago. Experiments performed with an atmospheric general circulation model including water isotopes support its temperature interpretation. We assessed the general correspondence between Dansgaard-Oeschger events and their smoothed Antarctic counterparts for this Dome C record, which reveals the presence of such features with similar amplitudes during previous glacial periods. We suggest that the interplay between obliquity and precession accounts for the variable intensity of interglacial periods in ice core records. Temperature was estimated after correction for sea-water isotopic composition (Bintanja et al, 2005) and for ice sheet elevation (Parrenin et al, 2007) on EDC3 age scale (Parrenin et al, 2007).
    Schlagwort(e): Age model; Age model, ice flow model; Calculated; DEPTH, ice/snow; Dome C; Dome C, Antarctica; EDC; EPICA; EPICA Dome C; European Project for Ice Coring in Antarctica; ICEDRILL; Ice drill; Isotope ratio mass spectrometry; Sample ID; Temperature, difference; δ Deuterium
    Materialart: Dataset
    Format: text/tab-separated-values, 23173 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 4
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    EPICA Dome C carbon dioxide concentrations from 650 to 413 kyr BP (2005)
    PANGAEA
    In:  Physikalisches Institut, Universität Bern
    Details
    Publikationsdatum: 2023-07-19
    Schlagwort(e): Carbon dioxide; Carbon dioxide, standard deviation; DEPTH, ice/snow; Dome C; DRILL; Drilling/drill rig; EDC99; EPICA; European Project for Ice Coring in Antarctica; Gas age; Infrared laser absorption specrometer, IRLS
    Materialart: Dataset
    Format: text/tab-separated-values, 966 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 5
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    EPICA Dome C carbon dioxide concentrations from 423 to 391 kyr BP (2005)
    PANGAEA
    In:  Laboratoire de Glaciologie et Géophysique de l`Environnement, Saint Martin
    Details
    Publikationsdatum: 2023-07-19
    Schlagwort(e): Carbon dioxide; DEPTH, ice/snow; Dome C; DRILL; Drilling/drill rig; EDC99; EPICA; European Project for Ice Coring in Antarctica; Gas age; Gas chromatography
    Materialart: Dataset
    Format: text/tab-separated-values, 62 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 6
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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
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 7
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    (Data D1) Annual climate proxy data from the NGRIP ice core, Greenland (2008)
    PANGAEA
    In:  Supplement to: Steffensen, Jørgen Peder; Andersen, Katrine K; Bigler, Matthias; Clausen, Henrik Brink; Dahl-Jensen, Dorthe; Fischer, Hubertus; Goto-Azuma, Kumiko; Hansson, Margareta E; Johnsen, Sigfús Jóhann; Jouzel, Jean; Masson-Delmotte, Valerie; Popp, Trevor; Rasmussen, Sune Olander; Röthlisberger, Regine; Ruth, Urs; Stauffer, Bernhard; Siggaard-Andersen, Marie-Louise; Sveinbjörnsdottir, Árný E; Svensson, Anders M; White, James W C (2008): High-resolution Greenland ice core data show abrupt climate change happens in few years. Science, 321(5889), 680-684, https://doi.org/10.1126/science.1157707
    Details
    Publikationsdatum: 2024-03-18
    Beschreibung: The last two abrupt warmings at the onset of our present warm interglacial period, interrupted by the Younger Dryas cooling event, were investigated at high temporal resolution from the North Greenland Ice Core Project ice core. The deuterium excess, a proxy of Greenland precipitation moisture source, switched mode within 1 to 3 years over these transitions and initiated a more gradual change (over 50 years) of the Greenland air temperature, as recorded by stable water isotopes. The onsets of both abrupt Greenland warmings were slightly preceded by decreasing Greenland dust deposition, reflecting the wetting of Asian deserts. A northern shift of the Intertropical Convergence Zone could be the trigger of these abrupt shifts of Northern Hemisphere atmospheric circulation, resulting in changes of 2 to 4 kelvin in Greenland moisture source temperature from one year to the next.
    Schlagwort(e): AGE; Age, error; Annual layer thickness; Deuterium excess; Dust particles; Greenland; ICEDRILL; Ice drill; International Polar Year (2007-2008); ipy; IPY; NGRIP; North Greenland Ice Core Project; NorthGRIP; Parameter; Sampling/drilling ice; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 7608 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
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