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Items where Author is "Knorr, Gregor"

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Number of items: 52.

Conference -Poster
Köhler, P. , Völker, C. , Zhang, X. , Knorr, G. and Lohmann, G. (2013)
Simulation the impact of shifts in Southern Ocean westerlies at LGM on ocean physics and atmospheric CO2 ,
11th International Conference on Paleoceanography (ICP11), Barcelona, 1 September 2013 - 6 September 2013 .
hdl:10013/epic.41992
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Article
Gong, X. , Knorr, G. , Lohmann, G. and Zhang, X. (2013)
Dependence of abrupt Atlantic meridional ocean circulation changes on climate background states ,
Geophysical Research Letters .
doi:10.1002/grl.50701 , hdl:10013/epic.41924

Article
Thornalley, D. , Barker, S. , Becker, J. , Knorr, G. and Hall, I. R. (2013)
Abrupt changes in deep Atlantic circulation during the transition to full glacial conditions ,
Paleoceanography .
doi:10.1002/palo.20025 , hdl:10013/epic.41432

Article
Gianluca, M. , Zahn, R. , Ziegler, M. , Purcell, C. , Knorr, G. , Hall, I. R. , Ziveri, P. and Elderfield, H. (2013)
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene ,
Paleoceanography, 28 .
doi:10.1002/palo.20038 , hdl:10013/epic.41925

Article
Zhang, X. , Lohmann, G. , Knorr, G. and Xu, X. (2013)
Different ocean states and transient characteristics in Last Glacial Maximum simulations and implications for deglaciation ,
Climate of the Past, 9 , pp. 2319-2333 .
doi:10.5194/cp-9-2319-2013 , hdl:10013/epic.42552
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Article
Stärz, M. , Lohmann, G. and Knorr, G. (2013)
Dynamic soil feedbacks on the climate of the mid-Holocene and the Last Glacial Maximum ,
Climate of the Past Discussions .
doi:10.5194/cpd-9-2717-2013 , hdl:10013/epic.41596
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Conference -Talk
Stärz, M. , Lohmann, G. , Knorr, G. , Wei, W. and Xu, Z. (2012)
Simulation of physical soil characteristics in a General Circulation Model: An amplifying mechanism for glacial and mid Holocene climate ,
2012 Fall Meeting, AGU , San Francisco, Calif., 3 December 2012 - 7 December 2012 .
hdl:10013/epic.40514

Conference -Poster
Knorr, G. , Köhler, P. and Lohmann, G. (2012)
Modulation of an instantaneous seesaw in ice cores by CO2 pulses ,
International Partnership in ICE Core Sciences, First Open Science Conference, Giens, France, 1 October 2012 - 5 October 2012 .
hdl:10013/epic.40090

Conference -Talk
Köhler, P. , Völker, C. , Zhang, X. , Knorr, G. and Lohmann, G. (2012)
Simulating the impact of shifts in Southern Ocean westerlies at LGM on ocean physics and atmospheric CO2 ,
International Partnership in ICE Core Sciences, First Open Science Conference, Giens, France, 1 October 2012 - 5 October 2012 .
hdl:10013/epic.40088

Conference -Talk
Zhang, X. , Lohmann, G. , Knorr, G. and Xu, X. (2012)
Two ocean states during the last glacial maximum ,
COMPARE PMIP3 workshop, Bremen, 18 March 2012 - 22 March 2012 .
hdl:10013/epic.40159
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Conference -Poster
Köhler, P. , Knorr, G. , Buiron, D. , Lourantou, A. and Chappellaz, J. (2012)
Abrupt rise in atmospheric CO2 at the onset of the Bølling/Allerød: in-situ ice core data versus true atmospheric signals ,
Conference Planet Under Pressure, London, 26 March 2012 - 29 March 2012 .
hdl:10013/epic.39087
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Conference -Poster
Köhler, P. , Völker, C. , Zhang, X. , Knorr, G. and Lohmann, G. (2012)
Combined impact of shifts in Southern Ocean westerlies and Antarctic sea ice during LGM on atmospheric CO2 ,
EGU General Assembly 2012, Vienna, 22 April 2012 - 27 April 2012 .
hdl:10013/epic.39093
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Conference -Poster
Stärz, M. , Lohmann, G. , Knorr, G. , Wei, W. and Xu, Z. (2012)
Simulation of physical soil characteristics in a General Circulation Model: An amplifying mechanism for glacial and mid Holocene climate ,
3rd International Conference on Earth System Modelling, Hamburg, 17 September 2012 - 21 September 2012 .
hdl:10013/epic.40025
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Conference -Talk
Abelmann, A. , Knorr, G. , Chapligin, B. , Maier, E. , Gersonde, R. and Shemesh, A. (2011)
Glacial to Holocene changes in surface and subsurface silica utilization in the Southern Ocean ,
AGU 2011 Fall Meeting, San Francisco, USA, 4 December 2011 - 9 December 2011 .
hdl:10013/epic.39274

Conference -Talk
Zhang, X. , Lohmann, G. , Knorr, G. and Xu, X. (2011)
Two Ocean States During the Last Glacial Maximum ,
WCRP Open Sciencie Meeting, Denver, USA, 24 October 2011 - 28 October 2011 .
hdl:10013/epic.40164

Article
Barker, S. , Knorr, G. , Edwards, R. L. , Parrenin, F. , Putnam, A. E. , Skinner, L. C. , Wolff, E. and Ziegler, M. (2011)
800,000 Years of Abrupt Climate Variability ,
Science, 334 , pp. 347-351 .
doi:10.1126/science.1203580 , hdl:10013/epic.38145

Article
Köhler, P. , Knorr, G. , Buiron, D. , Lourantou, A. and Chappellaz, J. (2011)
Abrupt rise in atmospheric CO2 at the onset of the Bølling/Allerød: in-situ ice core data versus true atmospheric signal ,
Climate of the Past, 7 (2), pp. 473-486 .
doi:10.5194/cp-7-473-2011 , hdl:10013/epic.37451
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Conference -Poster
Stärz, M. , Knorr, G. , Micheels, A. and Lohmann, G. (2011)
Assessing the sensitivity of Late Miocene vegetation in a fully coupled ASOGCM ,
Geophysical Research Abstracts 13, EGU2011-10174, EGU General Assembly 2011. .
hdl:10013/epic.37890

Article
Kleiven, H. F. , Hall, I. R. , McCave, I. N. , Knorr, G. and Jansen, E. (2011)
Coupled deep-water flow and climate variability in the middle Pleistocene North Atlantic ,
Geology, 39 (4), pp. 343-346 .
doi:10.1130/G31651.1 , hdl:10013/epic.37113

Article
Knorr, G. , Butzin, M. , Micheels, A. and Lohmann, G. (2011)
A Warm Miocene Climate at Low Atmospheric CO2 levels ,
Geophysical Research Letters, 38 (L20701) .
doi:10.1029/2011GL048873 , hdl:10013/epic.38772

Article
Barker, S. , Knorr, G. , Vautravers, M. J. , Diz, P. and Skinner, L. C. (2010)
Extreme deepening of the Atlantic overturning circulation during deglaciation ,
Nature Geosciences, 3 , pp. 567-571 .
doi:10.1038/NGEO921 , hdl:10013/epic.35699

Article
Zahn, R. , Lutjeharms, R. , Biastoch, A. , Hall, I. , Knorr, G. , Park, W. and Reason, C. (2010)
Investigating the Global Impacts of the Agulhas Current, EOS, Transactions ,
American Geophysical Union., 91 (12) .
doi:10.1029/2010EO120001 , hdl:10013/epic.34629

Conference -Poster
Stepanek, C. , Lohmann, G. and Knorr, G. (2010)
Modelling the Onset of Northern and Southern Hemisphere Glaciation ,
IPY Oslo Science Conference, T1-2 Plate tectonics and polar gateways in the Earth system. .
hdl:10013/epic.35963

Article
Köhler, P. , Knorr, G. , Buiron, D. , Lourantou, A. and Chappellaz, J. (2010)
Rapid changes in ice core gas records Part 2: Understanding the rapid rise in atmospheric CO2 at the onset of the Bølling/Allerød ,
Climate of the Past Discussions, 6 , pp. 1473-1501 .
doi:10.5194/cpd-6-1473-2010 , hdl:10013/epic.35723
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Conference -Talk
Köhler, P. , Knorr, G. , Buiron, D. , Lourantou, A. and Chappellaz, J. (2010)
The consequences of the age distribution of gases entrapped in ice cores for rapid changes in CO2 and CH4 synchronisation ,
TALDICE AND EPICA SCIENCE MEETING, Rome, ItalyApril 2010. .
hdl:10013/epic.34717

Conference -Poster
Köhler, P. and Knorr, G. (2010)
The jump of CO2 into the Bølling/Allerød ,
Geophysical Research Abstracts 12, EGU2010-2184-1, EGU General Assembly .
hdl:10013/epic.34555
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Article
Barker, S. , Diz, P. , Vautravers, M. , Van De Flierdt, T. , Hall, I. R. , Broecker, W. S. and Knorr, G. (2009)
Enhanced Atlantic Meridional Overturning Circulation during pronounced interstadials ,
Geochemica et Cosmochimica Acta, 73/13, A90-A90. .
hdl:10013/epic.35983

Article
Barker, S. , Diz, P. , Vautravers, M. J. , Pike, J. , Knorr, G. , Hall, I. R. and Broecker, W. S. (2009)
Interhemispheric Atlantic seesaw response during the last deglaciation ,
Nature, 457 , pp. 1097-1102 .
doi:10.1038/nature07770 , hdl:10013/epic.34628

Article
Barker, S. and Knorr, G. (2007)
Antarctic Climate Signature in the Greenland Ice Core Record ,
Proc. Natl. Acad. Sci. USA.1073/pnas.0708494104., 10 .
hdl:10013/epic.34627

Conference -Poster
Knorr, G. , Lohmann, G. , Prange, M. , Barker, S. and Laepple, T. (2007)
Dansgaard-Oeschger oscillations by sea-ice variations: A conceptual model approach ,
European Geosciences Union, General Assembly, 15-29 April, 2007, Vienna, Austria. .
hdl:10013/epic.26681

Conference -Invited talk
Lohmann, G. , Butzin, M. and Knorr, G. (2007)
Deglaciation: Data and Models ,
Seminar Presentation at Uni Bern, 28.11.2007, Switzerland. .
hdl:10013/epic.28587

Conference -Invited talk
Knorr, G. and Lohmann, G. (2007)
Rapid Transitions in the Thermohaline Circulation by Global Warming & Meltwater During the Last Deglaciation ,
Wally Broecker Seminar, 27.11.2007, Cardiff, UK. .
hdl:10013/epic.28586

Article
Knorr, G. and Lohmann, G. (2007)
Rapid transitions in the Atlantic thermohaline circulation triggered by global warming and meltwater during the last deglaciation ,
Geochem. Geophys. Geosyst, 8, Q12006. .
doi:10.1029/2007GC001604 , hdl:10013/epic.30228

Conference -Invited talk
Knorr, G. , Lohmann, G. and Prange, M. (2006)
North-South Teleconnections in a Conceptual and an Ocean General Circulation Model ,
Invited lecture, European Geosciences Union, General Assembly 2006, 02-07 April 2006, Vienna, Austria. .
hdl:10013/epic.25186

Article
Lohmann, G. , Grosfeld, K. , Haak, H. , Knorr, G. , Könnecke, L. , Romanova, V. , Schubert, S. and Zech, S. (2005)
Climate transitions: Forcing and feedback mechanisms of glacial-interglacial and recent climate change ,
German Climate Research Programme, DEKLIM Final Symposium, Series Research for the Environment, pp. 46-49 .
hdl:10013/epic.23137

Thesis -PhD
Knorr, G. (2005)
Collapse and Resumption of the Thermohaline Circulation during Deglaciation: Insights by Models of Different Complexity ,
PhD thesis, Universität Bremen.
hdl:10013/epic.24667

Conference -Poster
Knorr, G. and Lohmann, G. (2005)
The Indian-Atlantic Ocean exchange as a key player of deglacial climate change ,
EGU05-A-08515; CL24-1TU1P-0277; European Geosciences Union, 2nd General Assembly, 24-29 April 2005, Vienna, Austria. .
hdl:10013/epic.23135

Conference -Poster
Knorr, G. and Lohmann, G. (2005)
Interhemispheric teleconnections as recorded in proxy data during termination-I: views obtained from ocean, atmosphere and conceptual model examinations. ,
EGU05-A-01285; CL13/CL29-1TU5P-0219; European Geosciences Union, 2nd General Assembly, 24-29 April 2005, Vienna, Austria. .
hdl:10013/epic.23134

Article
Lekens, W. , Sejrup, H. P. , Haflidason, H. , Petersen, G. O. , Hjelstuen, B. and Knorr, G. (2005)
Laminated sediments preceding Heinrich event 1 in the northern North Sea and southern Norwegian Sea: Origin, processes and regional linkage ,
Marine Geology, 216 , pp. 27-50 .
hdl:10013/epic.34625

Conference -Talk
Knorr, G. and Lohmann, G. (2004)
Abrupt climate change by resumption of the thermohaline circulation during deglaciation ,
DFG/NSF Geoscience Research Conference, 2004 in Washington, D.C. .
hdl:10013/epic.21949

Article
Lohmann, G. , Butzin, M. , Dima, M. , Grosfeld, K. , Knorr, G. , Könnecke, L. , Romanova, V. , Schubert, S. and Zech, S. (2004)
Climate transitions: Forcing and feedback mechanisms of glacial-interglacial and recent climate change ,
PAGES NEWS, Vol. 12, No. 2, pages, pp. 21-22 .
hdl:10013/epic.21578

Article
Hjelstuen, B. O. , Sejrup, H. P. , Haflidason, H. , Nygard, A. , Berstad, I. M. and Knorr, G. (2004)
Late Quaternary seismic stratigraphy and geological development of the south Voring margin, Norwegian Sea ,
Quaternary Science Reviews, 23 , pp. 1847-1865 .
hdl:10013/epic.34626

Conference -Talk
Lohmann, G. , Prange, M. , Butzin, M. , Romanova, V. and Knorr, G. (2004)
On the physics of the THC changes ,
EGS-AGU-EUG Joint Assembly, Nice, France P1380; EAE03-A-05740; ND7-1TH2P-1380, p. 445 .
hdl:10013/epic.21952

Conference -Talk
Knorr, G. and Lohmann, G. (2004)
Resumption of the Atlantic thermohaline circulation during deglaciation: Effects of global vs. Southern Ocean warming ,
Geophysikal Research Abstracts, Vol.6, 00968SRef-ID:1607-7962/gra/EGU04-A-00968 European Geosciences Union .
hdl:10013/epic.21951

Article
Knorr, G. and Lohmann, G. (2004)
The Southern Ocean as Flywheel of the oceanic conveyor belt circulation ,
PAGES NEWS,12, 1, March 2004, pp. 11-13 .
hdl:10013/epic.21572
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Article
Lohmann, G. , Butzin, M. , Grosfeld, K. , Knorr, G. , Paul, A. , Prange, M. , Romanova, V. and Schubert, S. (2003)
The Bremen Earth System Model of Intermediate Complexity (BREMIC) designed for long-term climate studies. Model description, climatology, and applications. ,
Technical Report, Bremen University, Bremen, Germany. .
hdl:10013/epic.21571

Conference -Talk
Knorr, G. and Lohmann, G. (2003)
Interhemisphärische Telekonnektionen der atlantischen thermohalinen Zirkulation: Evidenzen von Daten und Ozeanmodellen,Terra Nostra, 6, 250-254, 2003 ,
6. Deutschen Klimatagung im Potsdam. .
hdl:10013/epic.21948

Article
Knorr, G. and Lohmann, G. (2003)
Interhemisphärische Telekonnektionen der atlantischen thermohallinen Zirkulation: Evidenzen von Daten und Datenmodellen ,
Terra Nostra, 6 , pp. 250-254 .
hdl:10013/epic.21568

Article
Knorr, G. and Lohmann, G. (2003)
Southern Ocean Origin for Resumption of Atlantic Thermohalilne Circulation during Deglaciation ,
Nature, 424 , pp. 532-536 .
hdl:10013/epic.21522
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Conference -Talk
Knorr, G. and Lohmann, G. (2003)
The resumption of the Atlantic thermohaline circulation during deglaciation via Southern Ocean warming ,
Geophysical Research Abstracts, Vol. 5, 06607, European Geophysical Society .
hdl:10013/epic.21945

Conference -Talk
Knorr, G. and Lohmann, G. (2003)
The resumption of the Atlantic thermohaline circulation during deglaciation via Southern Ocean warming ,
International Conference on Earth System Modelling .
hdl:10013/epic.21946

Conference -Talk
Knorr, G. and Lohmann, G. (2002)
A Southern Hemisphere Mechanism for Northern Hemisphere Deglaciation ,
EUG Joint Assembly, Nice, France. EGS02-A-04206; PC6-1FR3A-002. .
hdl:10013/epic.21972

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