Search Results - (Author, Cooperation:T. Blunier)
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1Latest Papers from Table of Contents or Articles in PressR. H. Rhodes ; E. J. Brook ; J. C. Chiang ; T. Blunier ; O. J. Maselli ; J. R. McConnell ; D. Romanini ; J. P. Severinghaus
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-05-30Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressC. J. Sapart ; G. Monteil ; M. Prokopiou ; R. S. van de Wal ; J. O. Kaplan ; P. Sperlich ; K. M. Krumhardt ; C. van der Veen ; S. Houweling ; M. C. Krol ; T. Blunier ; T. Sowers ; P. Martinerie ; E. Witrant ; D. Dahl-Jensen ; T. Rockmann
Nature Publishing Group (NPG)
Published 2012Staff ViewPublication Date: 2012-10-06Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Atmosphere/chemistry ; Biomass ; Carbon Isotopes ; Climate Change/history ; Fires/*history ; Greenland ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, Ancient ; History, Medieval ; Holy Roman Empire ; Human Activities/*history ; Ice/analysis ; Methane/analysis/*history/*metabolism ; Population Dynamics ; Roman World/historyPublished by: -
3Articles: DFG German National LicensesChappellaz, J. ; Schwander, J. ; Dällenbach, A. ; Stauffer, B. ; Stocker, T. F. ; Raynaud, D. ; Jouzel, J. ; Clausen, H. B. ; Hammer, C. U. ; Johnsen, S. J. ; Blunier, T.
[s.l.] : Macmillan Magazines Ltd.
Published 1998Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called Dansgaard–Oeschger events) during the last glaciation have an analogue in the ...Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesBlunier, T. ; Dällenbach, A. ; Indermühle, A. ; Schwander, J. ; Stocker, T. F. ; Tschumi, J. ; Chappellaz, J. ; Raynaud, D. ; Hammer, C. U. ; Clausen, H. B. ; Stauffer, B.
[s.l.] : Macmillan Magazines Ltd.
Published 1998Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The analysis of air bubbles trapped in polar ice has permitted the reconstruction of past atmospheric concentrations of CO2 over various timescales, and revealed that large climate changes over tens of thousands of years are generally accompanied by changes in atmospheric ...Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesIndermühle, A. ; Joos, F. ; Fischer, H. ; Smith, H. J. ; Wahlen, M. ; Deck, B. ; Mastroianni, D. ; Tschumi, J. ; Blunier, T. ; Meyer, R. ; Stauffer, B. ; Stocker, T. F.
[s.l.] : Macmillan Magazines Ltd.
Published 1999Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] A high-resolution ice-core record of atmospheric CO2 concentration over the Holocene epoch shows that the global carbon cycle has not been in steady state during the past 11,000 years. Analysis of the CO2 concentration and carbon stable-isotope records, using a ...Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesBlunier, T. ; Chappellaz, J. ; Schwander, J. ; Stauffer, B. ; Raynaud, D.
[s.l.] : Nature Publishing Group
Published 1995Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Earlier reconstructions of past CH4 changes from both Greenland and Antarctic ice cores1'5'7 showed that glacial-interglacial climate changes are accompanied by large variations in atmospheric methane concentration. Recently, detailed results1 from the GRIP core (Summit, central Greenland; ...Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesBarbante, C. ; Barnola, J.-M. ; Becagli, S. ; Beer, J. ; Bigler, M. ; Boutron, C. ; Blunier, T. ; Castellano, E. ; Cattani, O. ; Chappellaz, J. ; Dahl-Jensen, D. ; Debret, M. ; Delmonte, B. ; Dick, D. ; Falourd, S. ; Faria, S. ; Federer, U. ; Freitag, J. ; Frenzel, A. ; Fritzsche, D. ; Fundel, F. ; Gabrielli, P. ; Gaspari, V. ; Gersonde, R. ; Graf, W.
[s.l.] : Nature Publishing Group
Published 2006Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth’s climate dynamics. For the last glacial period, ice core studies have revealed strong coupling of the largest millennial-scale warm events in Antarctica with the ...Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesMarchal, O. ; Stocker, T. F. ; Joos, F. ; Indermühle, A. ; Blunier, T. ; Tschumi, J.
Springer
Published 1999Staff ViewISSN: 1432-0894Source: Springer Online Journal Archives 1860-2000Topics: GeosciencesPhysicsNotes: Abstract The Younger Dryas (YD, dated between 12.7–11.6 ky BP in the GRIP ice core, Central Greenland) is a distinct cold period in the North Atlantic region during the last deglaciation. A popular, but controversial hypothesis to explain the cooling is a reduction of the Atlantic thermohaline circulation (THC) and associated northward heat flux as triggered by glacial meltwater. Recently, a CH4-based synchronization of GRIP δ18O and Byrd CO2 records (West Antarctica) indicated that the concentration of atmospheric CO2 (COatm 2) rose steadily during the YD, suggesting a minor influence of the THC on COatm 2 at that time. Here we show that the COatm 2 change in a zonally averaged, circulation-biogeochemistry ocean model when THC is collapsed by freshwater flux anomaly is consistent with the Byrd record. Cooling in the North Atlantic has a small effect on COatm 2 in this model, because it is spatially limited and compensated by far-field changes such as a warming in the Southern Ocean. The modelled Southern Ocean warming is in agreement with the anti-phase evolution of isotopic temperature records from GRIP (Northern Hemisphere) and from Byrd and Vostok (East Antarctica) during the YD. δ13C depletion and PO4 enrichment are predicted at depth in the North Atlantic, but not in the Southern Ocean. This could explain a part of the controversy about the intensity of the THC during the YD. Potential weaknesses in our interpretation of the Byrd CO2 record in terms of THC changes are discussed.Type of Medium: Electronic ResourceURL: