Resultados globales: 31 registros encontrados en 0.03 segundos.
Artículos, Encontrados 29 registros
Documentos de investigación, Encontrados 2 registros
Artículos Encontrados 29 registros  1 - 10siguientefinal  ir al registro:
1.
9 p, 459.1 KB Multidecadal ocean variability and NW European ice sheet surges during the last deglaciation / Knutz, Paul C. (Cardiff University. Department of Earth Sciences) ; Hall, Ian R. (Cardiff University. Department of Earth Sciences) ; Zahn, Rainer (Cardiff University. Department of Earth Sciences) ; Rasmussen, Tine L. (University of Svalbard. Department of Geology) ; Kuijpers, Antoon (Geological Survey of Denmark and Greenland) ; Moros, Matthias (Baltic Sea Research Institute (Rostock, Alemanya)) ; Shackleton, Nick J. (University of Cambridge. Department of Earth Sciences)
A multiproxy paleoceanographic record from the Atlantic margin off the British Isles reveals in unprecedented detail discharges of icebergs and meltwater in response to sea surface temperature increases across the last deglaciation. [...]
2002 - 10.1029/2002GC000351
Geochemistry, Geophysics, Geosystems, Vol. 3, issue 12 (Dec. 2002) , p. 1-9  
2.
11 p, 815.1 KB Progressive reduction in NE Atlantic intermediate water ventilation prior to Heinrich events : response to NW European ice sheet instabilities? / Peck, V. L. (Cardiff University. School of Earth and Ocean Sciences) ; Hall, Ian R. (Cardiff University. School of Earth and Ocean Sciences) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institució Catalana de Recerca i Estudis Avançats) ; Scourse, J. D. (University of Wales. School of Ocean Sciences)
We present high-resolution benthic δ13C records from intermediate water depth core site MD01-2461 (1153 m water depth), from the Porcupine Seabight, NE Atlantic, spanning 43 to 8 kyr B. P. At an average proxy time step of 160 ± 56 years this core provides information on the linkage between records from the Portuguese Margin and high-latitude North Atlantic basin, allowing additional insights into North Atlantic thermohaline circulation (THC) variability during millennial-scale climatic events of the last glacial. [...]
2007 - 10.1029/2006GC001321
Geochemistry, Geophysics, Geosystems, Vol. 8, issue 1 (2007)  
3.
11 p, 1.3 MB Multicentennial Agulhas leakage variability and links to North Atlantic climate during the past 80,000 years / Dyez, Kelsey A. (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Zahn,Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Hall, Ian R. (Cardiff University. School of Earth and Ocean Sciences)
New high-resolution sea surface temperature (SST) and sea surface salinity (SSS) estimates are presented from the Agulhas Bank slope in the Atlantic sector of the Agulhas Corridor using planktic foraminiferal (Globigerinoides ruber) δ18O and Mg/Ca-derived SST. [...]
2014 - 10.1002/2014PA002698
Paleoceanography, Vol. 29, Issue 12 (Desember 2014) , p. 1238-1248  
4.
18 p, 1.6 MB Effects of midlatitude westerlies on the paleoproductivity at the Agulhas Bank slope during the penultimate glacial cycle : evidence from coccolith Sr/Ca ratios / Mejía, Luz María (Universidad de Oviedo. Departamento de Geología) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Cagnetti, Marilisa (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Bolton, Clara (Universidad de Oviedo. Departamento de Geología) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Marino, Gianluca (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Martínez Méndez, Gema (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Stoll, Heather (Universidad de Oviedo. Departamento de Geología)
Modern primary productivity on the Agulhas Bank, off South Africa, has been proposed to be linked to the midlatitude westerlies. A paleoproductivity record from this area may therefore resolve temporal changes in the westerly dynamics. [...]
2014 - 10.1002/2013PA002589
Paleoceanography, Vol. 29, Issue 7 (July 2014) , p. 697-714  
5.
10 p, 1.6 MB Hydrographic changes in the tropical and extratropical Pacific during the last deglaciation / Rodriguez Sanz, Laura (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Mortyn, Peter Graham (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Herguera, Juan Carlos (Centro de Investigación Científica y Educación Superior de Ensenada, Mexico) ; Zahn,Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Fine-scale, paired Mg/Ca-δ18O profiles (Globigerinoides ruber white, sensu lato) from the San Lázaro Basin (SLB) at 25°N in the Northeast Pacific reveal a transition from a predominant presence of tropical/subtropical waters during the last glacial termination (T1) to an increasing influence of fresh and cold California Current waters toward the Holocene. [...]
2013 - 10.1002/palo.20049
Paleoceanography, Vol. 28 No. 3 (September 2013) , p. 529-538  
6.
11 p, 489.0 KB Millennial-scale surface and subsurface paleothermometry from the northeast Atlantic, 55–8 ka BP / Peck, V.L. (Cardiff University. School of Earth and Ocean Sciences) ; Hall, Ian R. (Cardiff University. School of Earth and Ocean Sciences) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Elderfield, Henry (University of Cambridge. Department of Earth Sciences)
We present high-resolution records of upper ocean temperatures derived from Mg/Ca ratios of surface-dwelling Globigerina bulloides and subsurface-dwelling Neogloboquadrina pachyderma sinistral and the relative abundance of N. [...]
2008 - 10.1029/2008PA001631
Paleoceanography, Vol. 23 Issue 3 (September 2008) , p. 3221  
7.
8 p, 1.6 MB Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene / Marino, Gianluca (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Ziegler, Martin (Cardiff University. School of Earth and Ocean Sciences) ; Purcell, Conor (Cardiff University. School of Earth and Ocean Sciences) ; Knorr, Gregor (Cardiff University. School of Earth and Ocean Sciences) ; Hall, Ian R. (Cardiff University. School of Earth and Ocean Sciences) ; Elderfield, Henry (University of Cambridge. Department of Earth Sciences)
An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway, south of Africa, demonstrates recurrent and high-amplitude salinity oscillations in the Agulhas Leakage area during the penultimate glacial-interglacial cycle. [...]
2013 - 10.1002/palo.20038
Paleoceanography, Vol. 28 Issue 3 (September 2013) , p. 599-606  
8.
19 p, 1.6 MB Deep-dwelling forminifera as thermocline temperature recorders / Cléroux, Caroline (Laboratoire des Sciences du Climat et de l’Environnement) ; Cortijo, Elsa (Laboratoire des Sciences du Climat et de l’Environnement) ; Duplessy, Jean-Claude (Laboratoire des Sciences du Climat et de l’Environnement) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. [...]
2007 - 10.1029/2006GC001474
Geochemistry, Geophysics, Geosystems, Vol. 8, Issue 4 (April 2007)  
9.
2 p, 163.9 KB Investigating the global impacts of the Agulhas current / Zahn, Rainer (Institució Catalana de Recerca i Estudis Avançats) ; Lutjeharms, Johann (University of Cape Town. Department of Oceanography) ; Biastoch, Arne (Leibniz Institute of Marine Sciences) ; Hall, Ian (Cardiff University. Cardiff School of Earth and Ocean Sciences) ; Knorr, Gregor (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Park, Wonsun (Leibniz Institute of Marine Sciences) ; Reason, Chris (University of Cape Town. Department of Oceanography)
The Agulhas Current is the major western boundary current of the Southern Hemisphere [Lutjeharms, 2006] and a key component of the global ocean “conveyor” circulation controlling the return flow to the Atlantic Ocean [Gordon, 1986]. [...]
2010 - 10.1029/2010EO120001
Eos, Vol. 91, Issue 12 (March 2010) , p. 109-110  
10.
5 p, 370.2 KB Accelerated drawdown of meridional overturning in the late-glacial Atlantic triggered by transient pre-H event freshwater perturbation / Hall, Ian R. (Cardiff University. School of Earth, Ocean, and Planetary Sciences) ; Moran, S. B. (University of Rhode Island. Graduate School of Oceanography) ; Zahn, Rainer (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Knutz, Paul C. (Danmarks og Grønlands geologiske undersøgelse) ; Shen, C.-C. (Guo li Taiwan da xue. Department of Geosciences) ; Edwards, R. L. (University of Minnesota. Department of Geology and Geophysics)
Abrupt decreases of the Atlantic meridional overturning circulation (MOC) during the Late Pleistocene have been directly linked to catastrophic discharges of glacimarine freshwater, triggering disruption of northward marine heat transport and causing global climate changes. [...]
2006 - 10.1029/2006GL026239
Geophysical research letters, Vol. 33, Issue 16 (2006) , 5 p.  

Artículos : Encontrados 29 registros   1 - 10siguientefinal  ir al registro:
Documentos de investigación Encontrados 2 registros  
1.
97 p, 2.2 MB Centennial to multidecadal timeseries of North Atlantic climatology during the last two glacial-interglacial transitions and marine-terrestrial teleconnections / Jiménez Amat, Patricia ; Zahn, Rainer, dir. (Institut de Ciència i Tecnologia Ambientals) ; Institut de Ciència i Tecnologia Ambientals
Con el fin de identificar y comprender la secuencia de eventos y los mecanismos involucrados en las transiciones glaciales-interglaciares y el establecimiento de los posteriores períodos interglaciares, es esencial mejorar nuestro entendimiento acerca de la variabilidad del clima y la sensibilidad del océano en áreas clave como el Atlántico Norte a escalas de tiempo de alta resolución. [...]
In order to identify and understand the timing of events and mechanisms involved in glacialinterglacial transitions and the establishment of interglacial periods it is essential to learn about the climate variability and ocean sensitivity of key areas such as the North Atlantic at high resolution time scales. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  
2.
252 p, 4.7 MB Surface and deep circulation off South Africa : Agulhas leakage influence on the meridional overturning circulation during the last 345 kyr / Martínez Méndez, Gema ; Zahn, Rainer, dir. (Institut de Ciència i Tecnologia Ambientals) ; Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals
Investigaciones paleocenográficas y simulaciones numéricas están mostrando que el Hemisferio Sur desempeña un papel importante, tanto en los cambios de la circulación global como en la definición del estado climático terrestre. [...]
Paleocenographic research and numerical model simulations increasingly are emphasizing that the Southern Hemisphere plays an important role, both in global circulation changes and in defining the state of Earth's climate. [...]

Bellaterra: Universitat Autònoma de Barcelona, 2010  

Vea también: autores con nombres similares
1 Zahn, R.
2 Zahn, Rainer,
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