Skip to main content

Fundamental Modes and Abrupt Changes in North Atlantic Circulation and Climate over the last 60 ky — Concepts, Reconstruction and Numerical Modeling

  • Chapter
The Northern North Atlantic

Abstract

Centennial- to millennial-scale changes in global climate over the last 60 ky were first documented in ice cores from Greenland, with ice sheets around the North Atlantic and its thermohaline circulation (THC) as prime candidates for a potential trigger mechanism. To reach a new quality in understanding the origin and causal links behind these changes, two strategies were intimately tied together in this synthesis, high-resolution 3-D ocean modeling and paleoceanographic reconstructions. Here, five time series with a time resolution of several decades and various time slices of surface and deep-water paleoceanography were established from hundreds of deep-sea cores for the purpose of monitoring rapid changes across the North Atlantic and testing or initiating model results. Three fundamental modes were found to operate Atlantic THC. Today, mode I shows intensive formation of North Atlantic Deep Water (NADW) and strong heat and moisture fluxes to the continents adjacent to the North Atlantic. Peak glacial mode II leads to a reduction in NADW formation by 30-50%, in line with a clear drop in heat flux to Europe. The glacial Nordic Seas, however, remain ice-free during summer and little influenced by meltwater, in contrast to the sea west ofIreland, where iceberg meltwater blocks an eastbound flow into the Norwegian Sea and induces a cold longshore current from Faeroe to the Pyrenees. The subsequent Heinrich 1 (HI) meltwater mode III leads to an entire stop in NADW and intermediate-water production as well as a reversed pattern of THC, stopping any heat advection from the central and South Atlantic to the north. In contrast to earlier views, the Younger Dryas, possibly induced by Siberian meltwater, began with mode I and ended with mode III, continuing into the Preboreal. Modeling the impact of modes I to III on the global carbon budget, we find that the atmosphere has lost 34-54 ppmv CO2 from interglacial to glacial times, but has gained 23-62 ppmv CO2 at the end of HI within a few decades, equivalent to 33-90% of modem, man-made CO2 release. The robust 1500-y Dansgaard- Oeschger (D-O) cycles and their multiples of as much as 7200 years, the Heinrich event cycles, are tied to periodical changes between THC modes I/II and II/III. In the Irminger Sea rapid D-O coolings are in phase with initial meltwater injections from glaciers on East Greenland, here suggesting an internal trigger process in accordance with binge-purge models. Ice rafting from East Greenland and Iceland occurs only 240-280 y later, probably inducing a slight sea-level rise and, in tum, Heinrich ice rafting from the Laurentian ice sheet during H1, H2, H4, H5. At H1 a major surge from the Barents shelf has lagged initial cooling by 1500 y and entails the most prominent and extended reversal in Atlantic THC over the last 60 ky (probably also at the end of glacial stage 4, at H6). Meltwater stratification in the Inninger Sea reaches its maximum only 640 y after initial meltwater injection and induces, via seasonal sea-ice formation, brine-water injections down to 4 km water depth, signals leading the classic D-O jump to maximum warmth by only 125 y. It may be inferred from this short-phase lag that brine water-controlled deep-water formation probably entrains warm water from further south, thereby forming the key trigger mechanism for the final tum-on of the Atlantic THC mode II roughly within a decade (or mode I, in case of favorable Milankovitch forcing).

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  • Alley, R. B., and P. U. Clark, The deglaciation of the northernhemisphere: a globalperspective, Annu. Rev. Earth Planet Sci., 27, 149–182, 1999.

    Article  Google Scholar 

  • Alley, R. B., D. A. Meese, C. A. Shuman, A. J. Gow, K. C. Taylor, P. M. Grootes, J. W. C. White, M. Ram, E. D. Waddington, P. A. Mayewski, and G. A. Zielinski, Abrupt increase in Greenland snow accumulation at the end of the Younger Dryas event, Nature, 362, 527–529, 1993.

    Article  Google Scholar 

  • Alley, R. B., A.-M. Agústsdóttir, and P. J. Fawcett, Ice-core evidence of late-Holocene reduction in North Atlantic ocean heat transport, in Spec. Publ. edn. American Geophysical Union, 28 ms. pp., 1998.

    Google Scholar 

  • Altenbach, A. V., Verbreitungsmuster benthischer Foraminiferen im Arktischen Ozean und in glazialen und interglazialen Sedimenten des Europäischen Nordmeeres, Habilitation Thesis, 111 pp., Univ. of Kiel, Kiel, 1992.

    Google Scholar 

  • Bainbridge, A. E. (ed), GEOSECS Atlantic Expedition, Volume 1, Hydrographic data 1972–1973, U.S. GovernmentPrinting Office, Washington, DC, 1981.

    Google Scholar 

  • Bard, E., Geochemical and geophysical implications of the radiocarbon calibration, Geochim. Cosmochim. Acta, 62, 2025–2038, 1998.

    Article  Google Scholar 

  • Bard, E., M. Arnold, R. G. Fairbanks, and B. Hamelin, 230Th-234U and 14C ages obtained by mass spectrometry on corals, Radiocarbon, 35, 191–199, 1993.

    Google Scholar 

  • Bard, E., F. Rostek, and C. Sonzogni, Interhemispheric synchrony of the last deglaciation inferred from alkenone paiaeotherrnometry, Nature, 385, 707–710, 1997.

    Article  Google Scholar 

  • Belkin, I. M., S. Levitus, J. Antonov, and S. A. Malmberg, ‘Great salinityanomalies’ in the northern North Atlantic, Progr. in Oceanogr., 41, 1–68, 1998.

    Article  Google Scholar 

  • Bender, M., T. Sowers, M.-L. Dickson, J. Orchardo, P. Grootes, P. A. Mayewski, and D. A. Meese, Climate correlations between Greenland and Antarctica duringthe past 100, 000 years, Nature, 372, 663–666, 1994.

    Article  Google Scholar 

  • Berger, A., and M. F. Loutre, Insolation values for the climate of the last 10 Million years, Quat. Sci. Rev., 10, 297–317, 1991.

    Article  Google Scholar 

  • Berger, A., and M. F. Loutre, Intertropical latitudes and precessional and half-precessional cycles, Science, 278, 1476–1478, 1997.

    Article  Google Scholar 

  • Berger, W. H., and E. Jansen, Younger Dryas episode: ice collapse and super-fjord heat pump, in Verhandelingen, Sfd. Natuurkunde, Eerste Reeks, deel44: The Younger Dryas, edited by S. R. Troelstra, J. E. van Hinte, and G. M. Ganssen, pp. 61–105, Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam, 1995.

    Google Scholar 

  • Berger, W. H., and G. Wefer, Expeditions into the past: Paleoceanograpic studies of the South Atlantic, in The South Atlantic, edited by G. Wefer, W. H. Berger, G. Siedler, and D. J. Webb, pp. 363–410, Springer, Berlin, 1996.

    Chapter  Google Scholar 

  • Berger, W. H., S. Burke, and E. Vincent, Glacial-Holocene transition: Climate fluctuations and sporadic shutdown of NADW production, in Abrupt climatic change, edited by W. H. Berger, and L. D. Labeyrie, pp. 279–297, D. Reidel Publ. Company, Dordrecht, 1987.

    Chapter  Google Scholar 

  • Blunier, T., J. Chappellaz, J. Schwander, A. Dallenbach, B. Stauffer, T. F. Stocker, D. Raynaud, J. Jouzel, H. B. Clausen, C. U. Hammer, and S. J. Johnsen, Asynchrony of Antarctic and Greenland climate change during the last glacial period, Nature, 394, 739–743, 1998.

    Article  Google Scholar 

  • Boden, P., R. G. Fairbanks, J. D. Wright, and L. H. Burckle, High-resolution stable isotope records from southwest, Sweden, The drainage of the Baltic Ice Lake andYoungerDryas ice margin oscillations, Paleoceanogr., 12, 39–49, 1997.

    Article  Google Scholar 

  • Bohrmann, G., R. Henrich, and J. Thiede, Miocene to Quaternary paleoceanographyin the northern North Atlantic: Variability in carbonate and biogenic opal accumulation, in Geological History of the Polar Oceans: Arctic versus Antarctic, edited by U. Bleil, and J. Thiede, pp. 647–675, NATO ASI Series, Kluwer Acad. Publ., Dordrecht, 1990.

    Chapter  Google Scholar 

  • Bond, G. C; and R. Lotti, Iceberg discharges into the North Atlantic on millennial time scales during the last glaciation, Science, 267, 1005–1010, 1995.

    Article  Google Scholar 

  • Bond, G., H. Heinrich, W. Broecker, L. Labeyrie, J. McManus, J. Andrews, S. Huon, R. Jantschik, S. Clasen, C. Simet, K. Tedesco, M. Klas, G. Bonani, and S. Ivy, Evidence for massive discharges of icebergs into the North Atlantic ocean during the last glacial period, Nature, 360, 245–249, 1992.

    Article  Google Scholar 

  • Bond, G., W. S. Broecker, S. Johnsen, J. McManus, L. Labeyrie, J. Jouzel, and G. Bonani, Correlations between climate records from North Atlantic sediments and Greenland ice, Nature, 365, 143–147, 1993.

    Article  Google Scholar 

  • Bond, G., W. Showers, M. Cheseby, R. Lotti, P. Almasi, P. Demenocal, P. Priore, H. Cullen, I. Hajdas, and G. Bonani, A pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates, Science, 278, 1257–1266, 1997.

    Article  Google Scholar 

  • Boyle, E. A., Cadmium and 13C paleochemical ocean distributions during the stage 2 glacial maximum, Annu. Rev. Earth Planet Sci., 20, 245–287, 1992.

    Article  Google Scholar 

  • Boyle, E., Last-Glacial-Maximum North Atlantic deep water: on, off or somewherein-between”, Phil. Trans. R. Soc. Lond. B., 348, 243–253, 1995.

    Article  Google Scholar 

  • Boyle, E. A., and L. D. Keigwin, North Atlantic thermohaline circulation during the past 20,000 years linked to high-latitude surface temperature, Nature, 330, 35–40, 1987.

    Article  Google Scholar 

  • Broecker, W. S., The great ocean conveyor, Oceanogr., 4, 79–89, 1991.

    Article  Google Scholar 

  • Broecker, W. S., The strength of the nordic heat pump, in NATOASI Series, Vol. I2: The last deglaciation: Absolute and radiocarbon chronologies, edited by E. Bard, and W. S. Broecker, pp. 173–181, Springer, Berlin, 1992.

    Chapter  Google Scholar 

  • Broecker, W. S., Massive iceberg discharges as triggers for global climate change, Nature, 372, 421–424, 1994.

    Article  Google Scholar 

  • Broecker, W. S., Paleocean circulation during the last deglaciation:A bipolar seesaw?, Paleoceanogr., 13, 119–121, 1998.

    Article  Google Scholar 

  • Broecker, W. S., and G. H. Denton, The role of ocean atmosphere reorganizationsin glacial cycles, Geochim. Cosmochim. Acta, 53, 2465–2501, 1989.

    Article  Google Scholar 

  • Broecker, W. S., and G. M. Henderson, The sequence of events surrounding Termination I. and their implications for the cause of glacial-interglacial CO2 changes, Paleoceanogr., 13, 352–364, 1998.

    Article  Google Scholar 

  • Broecker, W. S., and T.-H. Peng, Tracers in the sea, Lamont-Doherty Geological Observatory, Palisades, New York, 1982.

    Google Scholar 

  • Broecker, W. S., and T.-H. Peng, Glacial to interglacial changes in the operation of the glacial carbon cycles, Radiocarbon, 28, 309–327, 1986.

    Google Scholar 

  • Broecker, W. S., and T.-H. Peng, The role of CaCO3 compensation in the glacial to interglacial atmospheric CO2 change, Global Biogeochem. Cycles, 1, 15–29, 1987.

    Article  Google Scholar 

  • Broecker, W. S., and T.-H. Peng, The cause of the glacial to interglacial atmospheric CO2 change: a polar alkalinity hypothesis, Global Biogeochem. Cycles, 3, 215–239, 1989.

    Article  Google Scholar 

  • Broecker, W. S., and T.-S. Peng, Interhemispheric transport of carbon dioxide by ocean circulation, Nature, 356, 587–589, 1992.

    Article  Google Scholar 

  • Broecker, W. S., D. M. Peteet, and D. Rind, Does the ocean-atmosphere system have more than one stable mode of operation?, Nature, 315, 21–26, 1985.

    Article  Google Scholar 

  • Broecker, W. S., M. Andree, G. Bonani, W. Wölfli, M. Klas, A. Mix, and H. Oeschger, Comparison between radiocarbon ages obtained from coexisting foraminifera, Paleoceanogr., 3, 647–657, 1988.

    Article  Google Scholar 

  • Broecker, W. S., J. P. Kennett, B. P. Flower, J. T. Teller, S. Trumbore, G. Bonani, and W. Woelfli, Routing of meltwater from the Laurentide ice sheet during the YoungerDryas cold episode, Nature, 341, 318–321, 1989.

    Article  Google Scholar 

  • Broecker, W. S., G. Bond, M. Klas, G. Bonani, and W. Wolfli, A salt oscillator in the glacial Atlantic? 1. The concept, Paleoceanogr., 5, 469–477, 1990.

    Article  Google Scholar 

  • Bryan, F., High-latitude salinity effects and interhemispheric thermohaline circulation, Nature, 323, 301–304, 1986.

    Article  Google Scholar 

  • Chapman, M. R., and N. J. Shackleton, Millennial-scale fluctuations in NorthAtlantic heat fluxduring the last 150,000 years, Earth Planet Sci. Lett., 159, 57–70, 1998.

    Article  Google Scholar 

  • Charles, C. D., and R. G. Fairbanks, Evidence from Southern Ocean sediments for the effect of North Atlantic deep-water flux on climate, Nature, 355, 416–419, 1992.

    Article  Google Scholar 

  • Charles, C. D., J. Lynch-Stieglitz, U. S. Ninnemann, and R. G. Fairbanks, Climate connections between the hemisphere revealed by deep sea sediment core ice core correlations, Earth Planet Sci. Lett., 142, 19–27, 1996.

    Article  Google Scholar 

  • Clement, A. C., and M. A. Cane, Part I. Variability of the tropical Pacific coupled ocean-atmosphere system: precessional response, abrupt change and sub-Milankovitch frequencies. Part II. Global connections, Chapman conference on mechanisms of millenial-sale global climate change. June 14-18, Snowbird, 29 (Abstract)., 1998.

    Google Scholar 

  • CLIMAP Project Members, Seasonal reconstructions of the Earth’ s surface at the last glacial maximum, Geological Society of America, Map and Chart Series, MC-36, 1981.

    Google Scholar 

  • Cortijo, E., La variabilité climatique rapide dans l’Atlantique Nord depuis 128 000 ans: relations entre les calottes de glace et l’océan de surface, Doctoral Thesis, 108 pp., Universite de Paris-Sud, U.F.R. Scientifique d’Orsay, 1995.

    Google Scholar 

  • Cortijo, E., L. Labeyrie, L. Vidal, M. Vautravers, M. Chapman, J. C. Duplessy, M. Elliot, M. Arnold, J. L. Turon, and G. Auffret, Changes in sea surface hydrology associated with Heinrich event 4 in the North Atlantic Ocean between 40° and 60° N, Earth Planet Sci. Lett., 146, 29–45, 1997.

    Article  Google Scholar 

  • Costello, O., and H. A. Bauch, Late Pleistocene-Holocene productivity record of benthic foraminifera from the Iceland Plateau (Core PS 1246-2), in Contributions to the micropaleontology and paleoceanography of the northern North Atlantic, edited by H. C. Hass, and M. A. Kaminski, pp. 141–148, The Grzybowski Foundation, Kraków, 1997.

    Google Scholar 

  • Craig, H., and L. J. Gordon, Deuterium and oxygen 18 variations in the ocean and the marine atmosphere, in Occ. Publ. No. 3: Symposium on marine geochemistry, 277 pp., Graduate School of oceanography, Univ. Rhode Island, 1965.

    Google Scholar 

  • Cuffey, K. M., G. D. Clow, R. B. Alley, M. Stuiver, E. D. Waddington, and R. W. Saltus, Large Arctic temperature change at the Wisconsin-Holocene glacial transition, Science, 270, 455–458, 1995.

    Article  Google Scholar 

  • Curry, R. G., Hydrobase a database of hydrographic stations and tools for climatological analysis. Technical Report, 44 pp., Woods Hole Oceanographic Institution, Woods Hole, 1996.

    Book  Google Scholar 

  • Curry, W. B., and D. W. Oppo, Synchronous, highfrequency oscillations in tropical sea surface temperatures and North Atlantic Deep Water production during the last glacial cycle, Paleoceanogr., 12, 1–14, 1997.

    Article  Google Scholar 

  • Dansgaard, W., J. W. C. White, and S. J. Johnsen, The abrupt termination of the Younger Dryas climate event, Nature, 339, 532–534, 1989.

    Article  Google Scholar 

  • Dansgaard, W., S. J. Johnsen, H. B. Clausen, D. Dahl-Jensen, N. S. Gundestrup, C. U. Hammer, C. S. Hvidberg, J. P. Steffensen, A. E. Sveinbjörnsdottir, J. Jouzel, and G. Bond, Evidence for general instability of past climate from a 250-kyr ice-core record, Nature, 364, 218–220, 1993.

    Article  Google Scholar 

  • de Vernal, A., C. Hillaire-Marcel, and G. Bilodeau, Reduced meltwater outflow from the Laurentide ice margin during the Younger Dryas, Nature, 381, 774–777, 1996.

    Article  Google Scholar 

  • Dickson, R. R., and J. Brown, The Production of North Atlantic Deep Water—Sources, Rates, and Pathways, J. Geophys. Res., C99, 12319–12341, 1994.

    Article  Google Scholar 

  • Dickson, R., J. Lazier, J. Meincke, P. Rhines, and J. Swift, Long-term coordinated changes in the convective activity of the North Atlantic, Progr. in Oceanogr., 38, 241–295, 1996.

    Article  Google Scholar 

  • Dokken, T. M., and M. Hald, Rapid climatic shifts during isotope stage s 2–4 in the Polar North Atlantic, Geology, 24, 599–602, 1996.

    Article  Google Scholar 

  • Domack, E. W., A. J. T. Jull, J. B. Anderson, T. W. Linick, and C. R. Williams, Application of tandem accelerator mass-spectrometer dating to late Pleistocene-Holocene sediments of the East Antarctic continental shelf, Quat. Res., 31, 277–287, 1989.

    Article  Google Scholar 

  • Dowdeswell, J. A., M. A. Maslin, J. T. Andrews, and I. N. McCave, Iceberg production, debris rafting, and the extent and thickness of Heinrich layers (H-1, H-2) in north Atlantic sediments, Geology, 23, 301–304, 1995.

    Article  Google Scholar 

  • Dreger, D., Decadal-to-centennial-scale sediment records ofice advance on the Barents shelf and melt-water discharge into the north-eastern Norwegian Sea over the last 40 kyr, D. Sc. Thesis, pp. 1–79, Univ. of Kiel, Kiel, 1999.

    Google Scholar 

  • Duplessy, J.-C., Glacial to interglacial contrasts in the northern Indian Ocean, Nature, 295, 494–498, 1982.

    Article  Google Scholar 

  • Duplessy, J. C., G. Delibrias, J. L. Turon, C. Pujol, and J. Duprat, Deglacial warming of the northeastern Atlantic Ocean; correlation with the paleoclimatic evolution of the European continent, Palaeogeogr., Palaeoclimatol., Palaeoecol., 35, 121–144, 1981.

    Article  Google Scholar 

  • Duplessy, J. C., N. J. Shackleton, R. K. Matthews, W. L. Prell, W. F. Ruddiman, M. Caralp, and C. H. Hendy, 13C record of benthic foraminifera in the last interglacial ocean; implications for the carbon cycle and the global deep water circulation, Quat. Res., 21, 225–243, 1984.

    Article  Google Scholar 

  • Duplessy, J. C., N. J. Shackleton, R. G. Fairbanks, L. Labeyrie, D. Oppo, and N. Kallel, Deepwater source variations during the last climatic cycle and their impact on the global deepwater circulation, Paleoceanogr., 3, 343–360, 1988.

    Article  Google Scholar 

  • Duplessy, J.-C., L. Labeyrie, A. Juillet-Leclerc, J. Duprat, and M. Samthein, Surface salinity reconstruction of the North Atlantic ocean during the last glacial maximum, Oceanol. Acta, 14, 311–324, 1991.

    Google Scholar 

  • Duplessy, J.-C., L. Labeyrie, M. Paterne, S. Hovine, T. Fichefet, J. Duprat, and M. Labracherie, High latitude deep water sources during the last glacial maximum and the intensity of the global oceanic circulation, in The South Atlantic, edited by G. Wefer, W. H. Berger, G. Siedler, and D. J. Webb, pp. 445–460, Springer, Berlin, 1996.

    Chapter  Google Scholar 

  • Eiriksson, J., K. L. Knudsen, and H. Haflidason, Paleoceanography within the boundary area between east Greenland and Irminger currents on the north Icelandic shelf, 6th International Conference on Paleoceanography, Lisbon, 24–28 Aug. Program, 101 (Abstract), 1998.

    Google Scholar 

  • Elliot, M., L. Labeyrie, G. Bond, E. Cortijo, J. L. Turon, N. Tisnerat, and J. C. Duplessy, Millennial-scale iceberg discharges in the Irminger Basin during the last glacial period: Relationship with the Heinrich events and environmental settings, Paleoceanogr., 13, 433–446, 1998.

    Article  Google Scholar 

  • Fairbanks, R. G., A 17,000-year glacio-eustatic sea level record: Influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation, Nature, 342, 637–642, 1989.

    Article  Google Scholar 

  • Fichefet, T., S. Hovine, and J. C. Duplessy, A model study of the Atlantic thermohaline circulation during the last glacial maximum, Nature, 372, 252–255, 1994.

    Article  Google Scholar 

  • Fronval, T., and E. Jansen, Eemian and early Weichselian (140-60 ka) paleoceanography and paleoclimate in the Nordic sea s with comparisons to Holocene conditions, Paleoceanogr., 12, 443–462, 1997.

    Article  Google Scholar 

  • Fronval, T., E. Jansen, J. Bloemendal, and S. Johnsen, Oceanic evidence for coherent fluctuations in Fennoscandian and Laurentide ice sheets on millennium timescales, Nature, 374, 443–446, 1995.

    Article  Google Scholar 

  • Ganopolski, A., S. Rahmstorf, V. Petoukhov, and M. Claussen, Simulation ofmodem and glacial climates with a coupled global model of intermediate complexity, Nature, 391, 351–356, 1998.

    Article  Google Scholar 

  • Ganssen, G., Dokumentation von küstennahem Auftrieb anhand stabiler Isotope in rezenten Foraminiferen vor Nordwest-Afrika, Meteor. Forsch. Erg., C37, 1–46, 1983.

    Google Scholar 

  • Grootes, P. M., and M. Stuiver, Oxygen 18/16 variability in Greenland snow and ice with 10-3-to 10-5-year time resolution, J. Geophys. Res., C102, 26455–26470, 1997.

    Article  Google Scholar 

  • Grootes, P. M., M. Stuiver, J. W. C. White, S. Johnsen, and J. Jouzel, Comparison of oxygen isotope records from the GISP2 and GRIP Greenland ice cores, Nature, 366, 552–554, 1993.

    Article  Google Scholar 

  • Grousset, F. E., L. Labeyrie, J. A. Sinko, M. Cremer, G. Bond, J. Duprat, E. Cortijo, and S. Huon, Patterns of ice-rafted detritus in the glacial North-Atlantic (40-55 N), Paleoceanogr., 8, 175–192, 1993.

    Article  Google Scholar 

  • Gwiazda, R. H., S. R. Hemming, and W. S. Broecker, Provenance of icebergs during Heinrich event 3 and the contrast to their sources during other Heinrich episodes, Paleoceanogr., 11, 371–378, 1996.

    Article  Google Scholar 

  • Guilderson, T. P., R. G. Fairbanks, and J. L. Rubenstone Tropical temperature variations since 20,000 years ago, Modulating interhemispheric climate change, Science, 263, 663–665, 1994.

    Article  Google Scholar 

  • Gwiazda, R. H., S. R. Hemming, and W. S. Broecker, Tracking the sources of icebergs with lead isotopes: The provenance of ice-rafted debris in Heinrich layer 2, Paleoceanogr., 11, 77–93, 1996b.

    Article  Google Scholar 

  • Hald, M., T. Dokken, and S. Hagen, Palaeoceanography on the European arctic margin during the last deglaciation, in Special Publication No. 111: Late Quaternary palaeoceanography of the North Atlantic margins, edited by J. T. Andrews, W. E. N. Austin H. Bergsten, and A. E. Jennings, pp. 275–287, Geological Society, London, 1996.

    Google Scholar 

  • Harris, P. G., M. Zhao, A. Rosell-Mele, R. Tiedemann, M. Samthein, and J. R. Maxwell, Chlorin accumulation rate as a proxy for Quaternary marine primary productivity, Nature, 383, 63–65, 1996.

    Article  Google Scholar 

  • Hass, H. C., H. Andruleit, A. Baumann, K.-H. Baumann, A. Kohly, S. Jensen, J. Matthiessen, C. Samtleben, P. Schäfer, A. Schröder-Ritzrau, and J. Thiede, The potential of synoptic plankton analyses for paleoclimatic investigations: Five plankton groups from the Holocene Nordic Seas, in The northern North Atlantic: a changing environment, edited by P. Schäfer, W. Ritzrau, M. Schlüter, and J. Thiede, Springer, Berlin, this volume.

    Google Scholar 

  • Haupt, B. J., D. Seidov, and K. Stattegger, SEDLOB and PATLOB: Two numerical tools for modeling climatically forced sediment and water volume transport in large ocean basins, in Computerized modeling of sedimentary systems, edited by J. Harff, W. Lemke, and K. Stattegger, Springer, Berlin, 1998.

    Google Scholar 

  • Hebbeln, D., T. Dokken, E. S. Andersen, M. Hald, and A. Elverhoi, Moisture supply for northern ice-sheet growth during the Last Glacial Maximum, Nature, 370, 357–360, 1994.

    Article  Google Scholar 

  • Heinrich, H., Origin and consequences of cyclic ice rafting in the Northeast Atlantic ocean during the past 130,000 years, Quat. Res., 29, 142–152, 1988.

    Article  Google Scholar 

  • Heinze, C., Zur Emiedrigung des atmosphärischen Kohlendioxidgehalts durch den Weltozean während der letzten Eiszeit, Examensarbeit 3, pp. 1–180, Max-Planck-Institut für Meteorologie, Hamburg, 1990.

    Google Scholar 

  • Hellennann, S., and M. Rosenstein, Normal monthly wind stress over the world ocean with error estimates, J. Phys. Oceanogr., 13, 1093–1104, 1983.

    Article  Google Scholar 

  • Henrich, R., Dynamics ofAtlantic water advection to the Norwegian-Greenland Sea—a time-slice record of carbonate distribution in the last 300 ky, Mar. Geol., 145, 95–131, 1998.

    Article  Google Scholar 

  • Henrich, R., Cycles, rythms, and events in Quaternay Arctic and Antarctic glaciomarine deposits, in Geological History of the Polar Oceans: Arctic versus Antarctic, edited by U. Bleil, and J. Thiede, NATO ASI Series, Kluwer Acad. Publ., Dordrecht, 1990.

    Google Scholar 

  • Hillaire-Marcel, C., A. de Vernal, G. Bilodeau, and G. Wu, Isotope Stratigraphy, Sedimentation Rates, Deep Circulation, and Carbonate Events in the Labrador Sea During the Last 200 ka, Can. J. Earth Sci., 31, 63–89, 1994.

    Article  Google Scholar 

  • Hopkins, T. S., The GIN Sea — a synthesis of its physical oceanography and literature review 1972–1985, Earth Sci. Rev., 30, 175–319, 1991.

    Article  Google Scholar 

  • Hüls, M., R. Zahn, and U. Pflaumann, Late Pleistocene SST as inferred from planktonic foraminiferal census counts in core M35003, Tobago basin. 6th International Conference on Paleoceanography. Lisbon, 24–28 Aug. Program, 128 (Abstract), 1998.

    Google Scholar 

  • Hughen, K. A., J. T. Overpeck, S. J. Lehman, M. Kashgarian, J. Southon, L. C. Peterson, R. Alley, and D. M. Sigman, Deglacial changes in ocean circulation from an extended radiocarbon calibration, Nature, 391, 65–68, 1998.

    Article  Google Scholar 

  • Hunt, A. G., and P. E. Malin, Possible triggering of Heinrich events by ice-load-induced earthquakes, Nature, 393, 155–158, 1998.

    Article  Google Scholar 

  • Imbrie, J., E. A. Boyle, S. C. Clemens, A. Duffy, W. R. Howard, G. Kukla, J. Kutzbach, D. G. Martinson, A. McIntyre, A. C. Mix, B. Molfino, J. J. Morley, L. C. Peterson, N. G. Pisias, W. L. Prell, M. E. Raymo, N. J. Shackleton, and J. R. Toggweiler, On the structure and origin of major glaciation cycles 1. Linear response to Milankovitch forcing, Paleoceanogr., 7, 701–738, 1992.

    Article  Google Scholar 

  • Imbrie, J., A. Berger, E. A. Boyle, S. C. Clemens, A. Duffy, W. R. Howard, G. Kukla, J. Kutzbach, D. G. Martinson, A. McIntyre, A. C. Mix, B. Moltino, J. J. Morley, L. C. Peterson, N. G. Pisias, W. L. Prell, M. E. Raymo, N. J. Shackleton, and J. R. Toggweiler, On the structure and origin of major glaciation cycles 2. The 100,000-year cycle, Paleoceanogr., 8, 699–735, 1993.

    Article  Google Scholar 

  • Isarin, R. F. B., H. Renssen, and E. A. Koster, Surface wind climate during the Younger Dryas in Europe as inferred from aeolian records and model simulations, Palaeogeogr., Palaeoclimatol., Palaeoecol., 134, 127–148, 1997.

    Article  Google Scholar 

  • Jansen, E., and T. Veum, Evidence for two-step deglaciation and its impact on North Atlantic deep-water circulation, Nature, 343, 612–616, 1990.

    Article  Google Scholar 

  • Jansen, E., M. E. Raymo, and P. Blum, et al. (eds), Proc. ODP, Init. Repts., 162, Ocean Drilling Program, College Station, TX, 1996.

    Google Scholar 

  • Jasper, J. P., E. L. Sikes, and J. M. Hayes, Transfer of CO2 from equatorial latitudes to high latitudes during the late Quaternary, in Air-water gas transfer, edited by B. Jähne, and E. C. Monahan, pp. 879–888, AEON Verlag & Studio, Hanau, 1995.

    Google Scholar 

  • Johnsen, S. J., D. Dahl-Jensen, W. Dansgaard, and N. S. Gundestrup, Greenland paleotemperatures derived from GRIP bore hole temperature and ice core isotope protiles, Tellus, B47, 624–629, 1995.

    Google Scholar 

  • Johnsen, S. J., H. B. Clausen, W. Dansgaard, N. S. Gundestrup, C. U. Hammer, U. Andersen, K. K. Andersen, C. S. Hvidberg, D. Dahljensen, J. P. Steffensen, H. Shoji, A. E. Sveinbjornsdottir, J. White, J. Jouzel, and D. Fisher, The 18O record along the Greenland Ice Core Project deep ice core and the problem of possible Eemian climatic instability, J. Geophys. Res., C102, 26397–26410, 1997.

    Article  Google Scholar 

  • Jones, G. A., and L. D. Keigwin, Evidence from Fram Strait (78 N) for early deglaciation, Nature, 336, 56–59, 1988.

    Article  Google Scholar 

  • Jung, S. J. A., Wassermassenaustausch zwischen NE-Atlantik und Nordmeer wahrend der letzten 300.000/ 80.000 Jahre im Abbild stabiler O-und C-Isotope, Ber. SFB 313, Univ. Kiel, 61, 1–104, 1996.

    Google Scholar 

  • Keeling, R. E, and T.-H. Peng, Transport of heat, CO2 and O2 by the Atlantic’s thermohaline circulation, Phil. Trans. R. Soc. Lond. B., 348, 133–142, 1995.

    Article  Google Scholar 

  • Keigwin, L. D., and E. A. Boyle, Late Quaternary paleochemistry of high-latitude surface waters, Palaeogeogr., Palaeoclimatol., Palaeoecol., 73, 85–106, 1989.

    Article  Google Scholar 

  • Keigwin, L. D., and G. A. Jones, The marine record of deglaciation from the continental margin off Nova Scotia, Paleoceanogr., 10, 973–985, 1995.

    Article  Google Scholar 

  • Kellogg, T. B., Paleoclimatology and paleo-oceanography of the Norwegian and Greenland seas; glacialinterglacial contrasts, Boreas, pp. 115–137, 1980.

    Google Scholar 

  • Kiefer, T., Produktivität und Temperaturen im subtropischen Nordatlantik: zyklische und abrupte Veränderungen im späten Quartär, Berichte—Reports, Geol-Paliiont. lnst. Univ. Kiel, 90, 1–127, 1998.

    Google Scholar 

  • Kiefer, T., M. Weinelt, M. Samthein, and U. Pflaumann, High-productivity in the subtropical North Atlantic along with Heinrich meltwater events, in prep. Koç, N., and E. Jansen, Response of the high-latitude Northern Hemisphere to the orbital climate forcing: Evidence from the Nordic Seas, Geology, 22, 523–526, 1994.

    Article  Google Scholar 

  • Koç, N., E. Jansen, and H. Haflidason, Paleoceanographic reconstructions of surface ocean conditions in the Greenland, Iceland and Norwegian Seas through the last 14 ka based on diatoms, Quat. Sci. Rev., 12, 115–140, 1993.

    Article  Google Scholar 

  • Kroon, D., W. E. N. Austin, M. R. Chapman, and G. M. Ganssen, Deglacial surface circulation changes in the northeastern Atlantic: Temperature and salinity records off NW Scotland on a century scale, Paleoceanogr., 12, 755–763, 1997.

    Article  Google Scholar 

  • Kroopnick, P. M., The distribution of 13C of CO2 in the world oceans, Deep. Sea. Res., 32, 57–84, 1985.

    Article  Google Scholar 

  • Laberg, J. S., and T. O. Vorren, Late Weichselian submarine debris flow deposits on the Bear Island Trough mouth fan, Mar. Geol., 127, 45–72, 1995.

    Article  Google Scholar 

  • Laberg, J. S., and T. O. Vorren, The middle and late Pleistocene evolution of the Bear Island Trough mouth fan, Global Planet Change, 12, 309–330, 1996.

    Article  Google Scholar 

  • Labeyrie, L. D., and J. C. Duplessy, Changes in the oceanic 13C/12C ratio during the last 140000 years: high latitude surface water records, Palaeogeogr., Palaeoclimatol., Palaeoecol., 50, 217–240, 1985.

    Google Scholar 

  • Labeyrie, L. D., J. C. Duplessy, and P. L. Blanc, Variations in mode offormation and temperature of oceanic deep waters over the past 125,000 years, Nature, 327, 477–482, 1987.

    Article  Google Scholar 

  • Labeyrie, L., L. Vidal, E. Cortijo, M. Paterne, M. Arnold, J. C. Duplessy, M. Vautravers, M. Labracherie, J. Duprat, J. L. Turon, F. Grousset, and T. C. E. van Weering, Surface and deep hydrology of the Northern Atlantic Ocean during the past 150,000 years, Phil. Trans. R. Soc. Lond. B., 348, 255–264, 1995.

    Article  Google Scholar 

  • Lambeck, K., Constraints on the late Weichselian ice sheet over the Barents sea from observations of raised shorelines, Quat. Sci. Rev., 14, 1–16, 1995.

    Article  Google Scholar 

  • Landvik, J. Y., S. Bondevik, A. Elverhoi, W. Fjeldskaar, J. Mangerud, O. Salvigsen, M. J. Siegert, J. I. Svendsen, and T. O. Vorren, The last glacial maximum of Svalbard and the Barents Sea area: Ice sheet extent and configuration, Quat. Sci. Rev., 17, 43–75, 1998.

    Article  Google Scholar 

  • Lehman, S., True grit spells double trouble, Nature, 382, 25–27, 1996.

    Article  Google Scholar 

  • Levitus, S., and T. P. Boyer, World Ocean Atlas 1994, Vol. 4 (Temperature), NOAA Natl. Environ. Satell. Data and Inf. Ser., Washington, DC, 1994.

    Google Scholar 

  • Levitus, S., R. Burgett, and T. P. Boyer, World Ocean Atlas 1994, Vol. 3 (Salinity), NOAA Natl. Environ. Satell. Data and Inf. Ser., Washington, DC, 1994.

    Google Scholar 

  • Little, M. G., R. R. Schneider, D. Kroon, B. Price, C. P. Summerhayes, and M. Segl, Trade wind forcing of upwelling, seasonality, and Heinrich events as a response to sub-Milankovitch climate variability, Paleoceanogr., 12, 568–576, 1997.

    Article  Google Scholar 

  • Lorenz, S., B. Grieger, P. Helbig, and K. Herterich, Investigating the sensitivity of the atmospheric general circulation model ECHAM 3 to paleoclimatic boundary conditions, Geol. Rundsch., 85, 513–524, 1996.

    Article  Google Scholar 

  • Lotter, A. F., B. Amman, J. Beer, I. Hajdas, and M. Sturm, A step towards an absolute time-scale for the late-glacial: annually laminated sediments from Soppensee (Switzerland), in NATO ASI Series, Vol. 12: The last deglaciation: Absolute and radiocarbon chronologies, edited by E. Bard, and W. S. Broecker, pp. 45–68, Springer, Berlin, 1992.

    Chapter  Google Scholar 

  • Lozier, S. M., W. B. Brechner-Owens, and R. G. Curry, The climatology of the North Atlantic, Progr. Oceanogr., 36, 1–44, 1995.

    Article  Google Scholar 

  • Lozier, S. M., M. S. McCartney, and W. B. Owens, Anomalous anomalies in averaged hydrographic data, J. Phys. Oceanogr., 24, 2623–2638, 1994.

    Article  Google Scholar 

  • MacAyeal, D. R., Binge/Purge Oscillations of the Laurentide Ice Sheet as a Cause of the North Atlantic’s Heinrich Events, Paleoceanogr., 8, 775–784, 1993a.

    Article  Google Scholar 

  • MacAyeal, D. R., A. Low-Order Model of the Heinrich Event Cycle, Paleoceanogr., 8, 767–773, 1993b.

    Article  Google Scholar 

  • Mackensen, A., H.-W. Hubberten, T. Bickert, G. Fischer, and D. K. Fütterer, The 13C in benthic foraminiferal tests of Fontbotia wuellerstorfi (Schwager) relative to 13C of dissolved inorganic carbon in southern ocean deep water: Implications for glacial ocean circulation models, Paleoceanogr., 8, 587–61, 1993.

    Article  Google Scholar 

  • Majewski, P. A., L. D. Meeker, M. S. Twickler, S. Whitlow, Q. Yang, W. B. Lyons, and M. Prentice, Major features and forcing of high-latitude northern hemisphere atmospheric circulation using a 110,000-year-long glaciogeochemical signal, J. Geophys. Res., 102, 26, 345–26, 267, 1997.

    Google Scholar 

  • Manabe, S., and R. J. Stouffer, Two stable equilibria of a coupled ocean-atmosphere model, J. Climate, 1, 841–866, 1988.

    Article  Google Scholar 

  • Manabe, S., and R. J. Stouffer, Coupled ocean-atmosphere model response to freshwater input: Comparison to Younger Dryas event, Paleoceanogr., 12, 321–336, 1997.

    Article  Google Scholar 

  • Mangerud, J., M. Bolstad, A. Elgersma, D. Helliksen, J. Y. Landvik, I. Lönne, A. K. Lycke, O. Salvigsen, T. Sandahl, and J. I. Svendsen, The last glacial maximum on Spitsbergen, Svalbard, Quat. Res., 38, 1–31, 1992.

    Article  Google Scholar 

  • Marchal, O., T. F. Stocker, and F. Joos, Impact ofoceanic reorganizations on the ocean carbon cycle and atmospheric carbon dioxide content, Paleoceanogr., 13, 225–244, 1998.

    Article  Google Scholar 

  • Marchitto, T. M., W. B. Curry, and D. W. Oppo, Millennial-scale changes in North Atlantic circulation since the last glaciation, Nature, 393, 557–561, 1998.

    Article  Google Scholar 

  • Marotzke, J., and J. Willebrand, Multiple equlibria of the global thermohaline circulation, J. Phys. Oceanogr., 21, 1372–1385, 1991.

    Article  Google Scholar 

  • Maslin, M. A., N. J. Shackleton, and U. Pflaumann, Surface water temperature, salinity, and density changes in the northeast Atlantic during the last 45,000 years: Heinrich events, deep water formation, and climatic rebounds, Paleoceanogr., 10, 527–544, 1995.

    Article  Google Scholar 

  • Maslin, M. A., M. Sarnthein, and J. J. Knaack, Subtropical climate during the Eemian, Naturwiss., 83, 122–126, 1996.

    Article  Google Scholar 

  • Maslin, M. A., E. Thomas, N. J. Shackleton, M. A. Hall, and D. Seidov, Glacial northeast Atlantic surface water p(CO2): Productivity and deep-water formation, Mar. Geol., 144, 177–190, 1997.

    Article  Google Scholar 

  • Mayewski, P. A., L. D. Meeker, M. S. Twickler, S. Whitlow, Q. Z. Yang, W. B. Lyons, and M. Prentice, Major features and forcing of high-latitude northern hemi sphere atmospheric circulation using a 110,000-year-long glaciochemical series, J. Geophys. Res., C102, 26345–26366, 1997.

    Article  Google Scholar 

  • McCabe, A. M., and P. U. Clark, Ice-sheet variability around the north Atlantic Ocean during the last deglaciation, Nature, 392, 373–377, 1998.

    Article  Google Scholar 

  • McCave, I. N., B. Manighctti, and N. A. S. Beveridge, Circulation in the glacial North Atlantic inferred from grain-size measurements, Nature, 374, 149–151, 1995.

    Article  Google Scholar 

  • McIntyre, A., and B. Molfino, Forcing of Atlantic equatorial and subpolar millennial cycles by precession, Science, 274, 1867–1870, 1996.

    Article  Google Scholar 

  • McManus, J. E, R. E Anderson, W. S. Broecker, M. Q. Fleisher, and S. M. Higgins, Radiometrically determined sedimentary fluxes in the sub-polar North Atlantic during the last 140,000 years, Earth Planet Sci. Lett., 155, 29–43, 1998.

    Article  Google Scholar 

  • Meese, D. A., R. B. Alley, A. J. Gow, P. Grootes, P. A. Mayewski, M. Ram, K. C. Taylor, E. D. Waddington, and G. Zielinski, Preliminary depth-age scale of the GISP2 ice core, CRRL Spec. Rep. 94-1, U. S. Army Cold Reg. Res. and Eng. Lab., 66 pp., Hannover, NH, 1994.

    Google Scholar 

  • Ninnemann, U. S., C. D. Charles, and D. A. Hodell, Origin of global millennial-scale climate events: Constraints from the Southern Ocean deep-sea sedimentary record, in Chapman Conference on Mechanisms of Millennial-Scale Global Climate Change, edited by R. S. Webb, AGU Geoph Monogr (in press), 1999.

    Google Scholar 

  • O’Brien, S. R., P. A. Mayewski, L. D. Meeker, D. A. Meese, M. S. Twickler, and S. I. Whitlow, Complexity of Holocene climate as reconstructed from a Greenland ice core, Science, 270, 1962–1964, 1995.

    Article  Google Scholar 

  • Pacanowski, R., K. Dixon, and A. Rosati, The GFDL modular ocean model users guide, Geophysical Fluid Dynamics Laboratory, Princeton University, Princeton, GFDL Ocean Group Technical Report No. 2, 1993.

    Google Scholar 

  • Paillard, D., and L. Labeyrie, Role of the thermohaline circulation in the abrupt warming after Heinrich events, Nature, 372, 162–164, 1994.

    Article  Google Scholar 

  • Paillard, D., L. Labeyrie, and P. Yiou, Macintosh program performs time-series analysis, EOS Transactions AGU, 77, 379, 1996.

    Article  Google Scholar 

  • Peltier, W. R., Ice age paleotopography, Science, 265, 195–201, 1994.

    Article  Google Scholar 

  • Prell, W. L., J. V. Gardner, A. W. H. Be, and J. D. Hays, Equatorial Atlantic and Caribbean foraminiferal assemblages, temperatures, and circulation; interglacial and glacial comparisons, in Memoir. No. 145: Investigation oflate Quaternary paleoceanography and paleoclimatology, edited by R. M. Cline, and J. D. Hays, pp. 247–265, Geological Society of America, Boulder, CO, 1976.

    Google Scholar 

  • Rahmstorf, S., Bifurcations of the Atlantic thermohaline circulation in response to changes in the hydrological cycle, Nature, 378, 145–149, 1995.

    Article  Google Scholar 

  • Rahmstorf, S., Influence of Mediterranean outflow on climate, EOS Trans. AGU, 79, 281–282, 1998.

    Article  Google Scholar 

  • Rahmstorf, S., J. Marotzke, and J. Willebrand, Stability of the thermohaline circulation, in The warmwatersphere of the North Atlantic Ocean, edited by W. Krauss, pp. 129–157, Gebrüder Borntraeger, Berlin, 1996.

    Google Scholar 

  • Rasmussen, T. L., E. Thomsen, T. C. E. van Weering, and L. Labeyrie, Rapid changes in surface and deep water conditions at the Faeroe margin during the last 58,000 years, Paleoceanogr., 11, 757–771, 1996.

    Article  Google Scholar 

  • Raymo, M. E., W. E Ruddiman, J. Backman, B. M. Clement, and D. G. Martinson, Late Pliocene variation in northern Hemisphere ice sheets and North Atlantic deep water circulation, Paleoceanogr., 4, 413–446, 1989.

    Article  Google Scholar 

  • Redfield, A. C., B. H. Ketchum, and E. A. Richards, The influence of organisms on the composition of seawater, in The Sea, Vol. 2, edited by M. N. Hill, pp. 26–77, Interscience Publisher, New York, 1963.

    Google Scholar 

  • Renssen, H., The global response to Younger Dryas boundary conditions in anAGCM simulation, Clim. Dyn., 13, 587–599, 1997.

    Article  Google Scholar 

  • Renssen, H., M. Lautenschlager, and C. J. E. Schuurmans, The atmospheric winter circulation during the Younger Dryas stadial in the Atlantic/European sector, Clim. Dyn., 12, 813–824, 1996.

    Article  Google Scholar 

  • Robinson, S. G., and I. N. McCave, Orbital forcing of bottom-current enhanced sedimentation on Feni Drift, NE Atlantic, during the mid-Pleistocene, Paleoceanogr., 9, 943–972, 1994.

    Article  Google Scholar 

  • Robinson, S. G., M. A. Maslin, and I. N. McCave, Magnetic susceptibility variations in Upper Pleistocene deep-sea sediments of the NE Atlantic: Implications for ice rafting and paleocirculation at the last glacial maximum, Paleoceanogr., 10, 221–250, 1995.

    Article  Google Scholar 

  • Ruddiman, W. E, and A. McIntyre, Oceanic mechanisms for amplification of the 23,000-year ice-volume cycle, Science, 212, 617–627, 1981.

    Article  Google Scholar 

  • Ruddiman, W. F., M. E. Raymo, D. G. Martinson, B. M. Clement, and J. Backman, Pleistocene evolution: Northern hemisphere ice sheets and North Atlantic Ocean, Paleoceanogr., 4, 413–446, 1989.

    Article  Google Scholar 

  • Rühlemann, C., S. Mulitza, P. J. Müller, and G. Wefer, Cooling by 3-4 C of southern Caribbean surface water during the last glacial maximum: evidence from alkenone paleothermometry. 6th International Conference on Paleoceanography. Lisbon, 24–28 Aug. Program, 196 (Abstract), 1998.

    Google Scholar 

  • Sakai, K., and W. R. Peltier, A simple model of the Atlantic thermohaline circulation: Internal and forced variability with paleoclimatological implications, J. Geophys. Res., C100, 13455–13479, 1995.

    Article  Google Scholar 

  • Saltzman, B., and M. Y. Verbitsky, Multiple instabilities and modes of glacial rhythmicity in the Plio-Pleistocene: A general theory of late Cenozoic climate change, Clim. Dyn., 9, 1–15, 1993.

    Article  Google Scholar 

  • Sarmiento, J. L., R. Murnane, and C. Le Quéré, Air-sea CO2 budget of the North Atlantic, Phil. Trans. R. Soc. Lond. B., 348, 211–219, 1995.

    Article  Google Scholar 

  • Samthein, M., and R. Tiedemann, Younger Dryas-style cooling events at glacial terminations I-VI at ODP Site 658; associated benthic 13C anomalies constrain meltwater hypothesis, Paleoceanogr., 5, 1041–1055, 1990.

    Article  Google Scholar 

  • Sarnthein, M., K. Winn, S. J. A. Jung, J. C. Duplessy, L. Labeyrie, H. Erlenkeuser, and G. Ganssen, Changes in East Atlantic deepwater circulation over the last 30,000 years — 8 time slice reconstructions, Paleoceanogr., 9, 209–267, 1994.

    Article  Google Scholar 

  • Samthein, M., E. Jansen, M. Weinelt, M. Arnold, J. C. Duplessy, H. Erlenkeuser, A. Flatoy, G. Johannessen, T. Johannessen, S. Jung, N. Koc, L. Labeyrie, M. Maslin, U. Pflaumann, and H. Schulz, Variations in Atlantic surface ocean paleoceanography, 50-80 N: A time-slice record of the last 30,000 years, Paleoceanogr., 10, 1063–1094, 1995.

    Article  Google Scholar 

  • Schäfer-Neth, C., and K. Stattegger, Circulation of the glacial Atlantic: combining global and regional modelling, in Computerized modeling of sedimentary systems, edited by J. Harff, W. Lemke, and K. Stattegger, Springer, Berlin, 1998.

    Google Scholar 

  • Schäfer-Neth, C., Modellierung der Paläoozeanographie des nördlichen Nordatlantiks zur letzten Maximalvereisung, Ber. SFB 313, Univ. Kiel, 51, 1–106, 1994.

    Google Scholar 

  • Schäfer-Neth, C., Changes in the seawater salinityoxygen isotope relation between last glacial and present: sediment core data and OGCM modelling, Paleoclim., 2, 101–131, 1998.

    Google Scholar 

  • Schäfer-Neth, C., and A. Paul, Circulation of the glacial Atlantic: A synthesis of global and regional Modeling, in The northern North Atlantic: a changing environment, edited by P. Schäfer, W. Ritzrau, M. Schlüter, and J. Thiede, Springer, Berlin, this volume.

    Google Scholar 

  • Schäfer-Neth, C., and K. Stattegger, Meltwater pulses in the northern North Atlantic: retrodiction and forecast by numerical modelling, Geol. Rundsch., 86, 492–498, 1997.

    Article  Google Scholar 

  • Schiller, A., U. Mikolajewicz, and R. Voss, The stability of the North Atlantic thermohaline circulation in a coupled ocean-atmosphere general circulation model, Clim. Dyn., 13, 325–347, 1997.

    Article  Google Scholar 

  • Schmitz, W. J., On the interbasin-scale thermohaline circulation, Rev. Geophys., 33, 151–173, 1995.

    Article  Google Scholar 

  • Schmitz, W. J. Jr, and M. S. McCartney, On the North Atlantic circulation, Rev. Geophys., 31, 29–49, 1993.

    Article  Google Scholar 

  • Schulz, H., Meeresoberflächentemperaturen vor 10.000 Jahren — Auswirkungen des frühholozänen Insolationsmaximums, Berichte — Reports, Geol.-Päliiont. lnst. Univ. Kiel, 73, 1–156, 1995.

    Google Scholar 

  • Schulz, M., Numerische Modellexperimente zur Veränderung des Ozean-Atmospäre-Kohlenstoffkreislaufes während der letzten 21000 Jahre: Der Einfluß von Variationen der thermohalinen Ozeanzirkulation, Ber. SFB 313, Univ. Kiel, 74, 1–177, 1998.

    Google Scholar 

  • Schulz, M., D. Seidov, M. Sarnthein, K. Stattegger, Modeling ocean-atmosphere carbon budgets during the Last Glacial Maximum—Heinrich 1 Meltwater Event—Bølling transition, Geol. Rundsch., in press.

    Google Scholar 

  • Schulz, M., and K. Stattegger, SPECTRUM: Spectral analysis of unevenly spaced paleoclimatic time series, Computers and Geosci., 23, 929–945, 1997.

    Article  Google Scholar 

  • Seidov, D., An intermediate model for large-scale ocean circulation studies, Dyn. Atmos. Oceans, 25, 25–55, 1996.

    Article  Google Scholar 

  • Seidov, D., and B. J. Haupt, Numerical study of glacial and meltwater global ocean thermohaline conveyor, in Computerized modeling ofsedimentary systems, edited by J. Harff, W. Lemke, and K. Stattegger, pp. 79–113, Springer, Berlin, 1998.

    Google Scholar 

  • Seidov, D., and M. Maslin, Seasonally ice free glacial Nordic seas without deep water ventilation, Terra Nova, 8, 245–254, 1996.

    Article  Google Scholar 

  • Seidov, D., M. Samthein, K. Stattegger, R. Prien, and M. Weinelt, North Atlantic ocean circulation during the last glacial maximum and subsequent meltwater event: A numerical model, J. Geophys. Res., C101, 16305–16332, 1996.

    Article  Google Scholar 

  • Shackleton, N. J., Carbon-13 in Uvigerina: Tropical rainforest history and the equatorial Pacific carbonate dissolution cycles, in The fate of fossil fuel CO 2 in the oceans, edited by N. R. Andersen, and A. Malahoff, pp. 401–427, Plenum Press, New York, 1977.

    Google Scholar 

  • Simstich, J., Die ozeanische Deckschicht des Europäischen Nordmeers im Abbild stabiler Isotope von Kalkgehäsen unterschiedlicher Planktonforaminiferenarten, D. Sc. Thesis, pp. 1–83, Univ. of Kiel, Kiel, 1998.

    Google Scholar 

  • Simstich, J., M. Samthein, and H. Erlenkeuser, Surface layer stratification in the nordic seas: stable isotope anomalies of N. pachyderma (sin) and T. quinqueloba, 6th International Conference on Paleoceanography, Lisbon, 24–28 Aug. Program, 211 (Abstract), 1998.

    Google Scholar 

  • Sirocko, E, D. Garbe-Schönberg, A McIntyre, and B. Molfino, Teleconnections between the subtropical monsoons and high-latitude climates during the last deglaciation, Science, 272, 526–529, 1996.

    Article  Google Scholar 

  • Sowers, T., and M. Bender, Climate records covering the last deglaciation, Science, 269, 210–214, 1995.

    Article  Google Scholar 

  • Spero, H. J., J. Bijma, D. W. Lea, and B. E. Bemis, Effect of seawater carbonate concentration on foraminiferal carbon and oxygen isotopes, Nature, 390, 497–500, 1997.

    Article  Google Scholar 

  • Spielhagen, R. F., G. Bonani, A Eisenhauer, M. Frank, T. Frederichs, H. Kassens, P. W. Kubik, A Mangini, N. Nørgaard-Pedersen, N. R. Nowaczyk, S. Schäper, R. Stein, J. Thiede, R. Tiedemann, and M. Wahsner, Arctic Ocean evidence for late Quaternary initiation of northern Eurasian ice sheets, Geology, 25, 783–786, 1997.

    Article  Google Scholar 

  • Spielhagen, R. E, N. Nørgaard-Pedersen, H. Erlenkeuser, P. M. Grootes, and J. Heinemeier, A meltwater event in the Arctic Ocean before the Younger Dryas, 6th International Conference on Paleoceanography, Lisbon, 24—28 Aug. Program, 213 (Abstract), 1998.

    Google Scholar 

  • Steinsund, P. I., M. Hald, and D. A. R. Poole, Modem benthic foraminiferal distribution in the southwestern Barents Sea; paleooceanographic applications, Norsk Geologisk Tidsskrift, 71, 169–171, 1991.

    Google Scholar 

  • Stocker, T. E, Climate change—The seesaw effect, Science, 282, 61–62, 1998.

    Article  Google Scholar 

  • Stocker, T. E, and D. G. Wright, Rapid changes in ocean circulation and atmospheric radiocarbon, Paleoceanogr., 11, 773–795, 1996.

    Article  Google Scholar 

  • Stocker, T. E, D. G. Wright, and W. S. Broecker, The influence of high-latitude surface forcing on the global thermohaline circulation, Paleoceanogr., 7, 529–541, 1992.

    Article  Google Scholar 

  • Stommel, H., Thermohaline convection with two stable regimes of flow, Tellus, 13, 224–228, 1961.

    Article  Google Scholar 

  • Stoner, J. S., J. E. T. Channell, and C. Hillaire-Marcel, A 200 ka geomagnetic chronostratigraphy for the Labrador Sea:Indirect correlation of the sediment record to SPECMAP, Earth Planet Sci. Lett., 159, 165–181, 1998.

    Article  Google Scholar 

  • Sy, A, M. Rhein, J. R. N. Lazier, K. P. Koltermann, J. Meincke, A. Putzka, and M. Bersch, Surprisingly rapid spreading of newly formed intermediate waters across the North Atlantic Ocean, Nature, 386, 675–679, 1997.

    Article  Google Scholar 

  • Struck, U., Stepwise postglacial migration of benthic foraminifera into the abyssal northeastern Norwegian Sea, Mar. Micropaleontol., 26, 207–213, 1995.

    Article  Google Scholar 

  • Sundquist, E. T., The global carbon dioxide budget, Science, 259, 934–941, 1993.

    Google Scholar 

  • Takahashi, T., T. T. Takahashi, and S. C. Sutherland, An assessment of the North Atlantic as a CO2 sink, Phil. Trans. R. Soc. Lon. B., 348, 143–152, 1995.

    Article  Google Scholar 

  • Takahashi, T., R. A Feely, R. E Weiss, R. Wanninkhof, D. W. Chipman, S. C. Sutherland, and T. T. Takahashi, Global air-sea flux of CO2: An estimate based on mesurements of sea-air pCO2 difference, Proc. Natl. Acad. Sci. USA, 94, 8292–8299, 1997.

    Article  Google Scholar 

  • Tans, P. P., I. Y. Fung, and T. Takahashi, Observational constraints on the global CO2 budget, Science, 247, 1431–1438, 1990.

    Article  Google Scholar 

  • Taylor, K. C., C. U. Hammer, R. B. Alley, H. B. Clausen, D. Dahl-Jensen, A J. Gow, N. S. Gundestrup, J. Kipfstuhl, J. C. Moore, and E. D. Waddlington, Electrical conductivity measurements from the GISP2 and GRIP Greenland ice cores, Nature, 366, 549–552, 1993.

    Article  Google Scholar 

  • Thiede, J., A. M. Myhre, J. V. Firth, G. L. Johnson, W. E Ruddiman (eds), Proc. ODP, Sci. Results, 151, Ocean Drilling Program, College Station, TX, 1996.

    Google Scholar 

  • Thiede, J., A. Winkler, T. Wolf-Welling, O. Eldholm, A. M. Myhre, K. H. Baumann, R. Henrich, and R. Stein, Late Cenozoic history of the Polar North Atlantic: Results from ocean drilling, Quat. Sci. Rev., 17, 185–208, 1998.

    Article  Google Scholar 

  • Tziperman, E., Inherently unstable climate behaviour due to weak thermohaline ocean circulation, Nature, 386, 592–595, 1997.

    Article  Google Scholar 

  • van Kreveld, S. A., M. Knappertsbusch, J. Ottens, G. M. Ganssen, and J. E. van Hinte, Biogenic carbonate and ice-rafted debris (Heinrich layer) accumulation in deep-sea sediments from a Northeast Atlantic piston core, Mar. Geol., 131, 21–46, 1996.

    Article  Google Scholar 

  • van Kreveld, M. Sarnthein, H. Erlenkeuser, P. M. Grootes, S. A., S. Jung, M. J. Nadeau, U. Pflaumann and A Voelker, Potential links between surging ice sheets, circulation changes, and the Dansgaard-Oeschger cycles in the Inninger sea, 60–18 ka, Paleoceanogr., submitted.

    Google Scholar 

  • Veum, T., E. Jansen, M. Arnold, I. Beyer, and J. C. Duplessy, Water mass exchange between the North Atlantic and the Norwegian Sea during the past 28,000 years, Nature, 356, 783–785, 1992.

    Article  Google Scholar 

  • Vidal, L., L. Labeyrie, E. Cortijo, M. Arnold, J. C. Duplessy, E. Michel, S. Becque, and T. C. E. van Weering, Evidence for changes in the North Atlantic Deep Water linked to meltwater surges during the Heinrich events, Earth Planet Sci Lett., 146, 13–27, 1997.

    Article  Google Scholar 

  • Voelker, A., Zur Deutung der Dansgaard-Oeschger Ereignisse in ultra-hochaufliisenden Sedimentprofilen aus dem Europäischen Nordmeer, D. Sc. Thesis, pp. 1–180, Univ. of Kiel, Kiel, 1999.

    Google Scholar 

  • Voelker, A. H. L., M. Sarnthein, P. M. Grootes, H. Erlenkeuser, C. Laj, A. Mazaud, M. J. Nadeau, and M. Schleicher, Correlation of marine C-14 ages from the Nordic Seas with the GISP2 isotope record: Implications for C-14 calibration beyond 25 ka BP, Radiocarbon, 40, 517, 1998.

    Google Scholar 

  • Vogelsang, E., Paläo-Ozeanographie des Europäischen Nordmeeres an Hand stabiler Kohlenstoffund Sauerstoffisotope, Ber. SFB 313, Univ. Kiel, 23, 1–136, 1990.

    Google Scholar 

  • von Bodungen, B., E Theilen, and E Werner, POSEIDON-Reise 141-2/142 vom 17.10.87 bis 18.11.87; POSEIDON-Reise 146/1 vom 25.4.87 bis 11.5.87; POSEIDON-Reise 146/3 vom 29.5.88 bis 19.6.88, Ber. SFB 313, Univ. Kiel, 11, 1–66, 1988.

    Google Scholar 

  • Vorren, T. O., and J. S. Laberg, Late glacial air temperature, oceanographic and ice sheet interactions in the southern Barents Sea region, in Special Publication No. 111: Late Quaternary palaeoceanography of the North Atlantic margins, edited by J. T. Andrews, W. E. N. Austin, H. Bergsten, and A. E. Jennings, pp. 303–321, Geological Society, London, 1996.

    Google Scholar 

  • Wang, L., M. Samthein, H. Erlenkeuser, J. Grimalt, P. Grootes, S. Heilig, E. Ivanova, M. Kienast, C. Pelejero, and U. Pflaumann, East Asian monsoon climate during the late Pleistocene: High-resolution sediment records from the South China Sea, Mar. Geol., 156, 245–284, 1999.

    Article  Google Scholar 

  • Weinelt, M., Veränderungen der Oberflächenzirkulation im Europaischen Nordmeer wahrend der letzten 60.000 Jahre-Hinweise aus stabilen Isotopen, Ber. SFB 313, Univ. Kiel, 41, 1–106, 1993.

    Google Scholar 

  • Weinelt, M., M. Samthein, U. Pflaumann, H. Schulz, S. Jung, and H. Erlenkeuser, Ice-free nordic seas during the last glacial maximum? Potential sites of deepwater formation, Palaeoclim., 1, 283–309, 1996.

    Google Scholar 

  • Weinelt, M., W. Kuhnt, M. Samthein, A. Altenbach, O. Costello, H. Erlenkeuser, U. Pflaumann, J. Simstich, U. Struck, A. Thies, M. H. Trauth, and E. Vogelsang, Paleoceanographic proxies in the northern North Atlantic, in The northern North Atlantic: a changing environment, edited by P. Schäfer, W. Ritzrau, M. Schlüter, and J. Thiede, Springer, Berlin, this volume.

    Google Scholar 

  • Winton, M., Deep decoupling oscillations of the oceanic thermohaline circulation, in NATO ASI Series: Ice in the climate system, edited by W. R. Peltier, pp. 417–432, Springer, Berlin, 1993.

    Chapter  Google Scholar 

  • Yu, E. E, R. Francois, and M. P. Bacon, Similar rates of modem and last-glacial ocean thermohaline circulation inferred from radiochemical data, Nature, 379, 689–694, 1996.

    Article  Google Scholar 

  • Zahn, R., K. Winn, and M. Samthein, Benthic foraminiferal 13C and accumulation rates of organic carbon: Uvigerina peregrina group and Cibicidoides wuellerstorfi, Paleoceanogr., 1, 27–42, 1986.

    Article  Google Scholar 

  • Zahn, R., J. Schönfeld, H. R. Kudrass, M. H. Park, H. Erlenkeuser, and P. Grootes, Thermohaline instability in the North Atlantic during meltwater events: Stable isotope and ice-rafted detritus records from core SO75-26KL, Portuguese margin, Paleoceanogr., 12, 696–710, 1997.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2001 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

Sarnthein, M. et al. (2001). Fundamental Modes and Abrupt Changes in North Atlantic Circulation and Climate over the last 60 ky — Concepts, Reconstruction and Numerical Modeling. In: Schäfer, P., Ritzrau, W., Schlüter, M., Thiede, J. (eds) The Northern North Atlantic. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56876-3_21

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-56876-3_21

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-63136-8

  • Online ISBN: 978-3-642-56876-3

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics