High-resolution climate records from the North Atlantic during the last interglacial

McManus, Jerry F; Bond, Gérard C.; Broecker, W. S.; Johnsen, S. J.; Labeyrie, Laurent D; Higgins, Sean M.

doi:10.1038/371326a0

Cited by 439 publications

(301 citation statements)

References 18 publications

Supporting

Mentioning

281

Contrasting

Unclassified

Order By: Relevance

“…This is in good agreement with the pollen signal in La Grande Pile (Woillard, 1978) where the percentage of the arboreal pollen during the Montaigu event is of 70 %, but decreased up to 35 and 30 % within the Melisey 1 and Melisey 2, respectively. Also in the NW Iberian margin, the Montiagu event is less pronounced (Sánchez-Goñi et al, 2005) and the North Atlantic cold pulse C23, which was correlated with the Montaigu event, was warmer than C 24 (Melisey 1) and C 22 (Melisey 2) (McManus et al, 1994). In contrast, the strongest signals in pollen data (i.e.…”

Section: Millennial-and Sub-millennial Scale Climate Variability In Lmentioning

confidence: 51%

“…In the marine realm, the early glacial period in turn spans marine isotope sub-stages MIS 5d-a, which reflect alternation of increased (MIS 5d and 5b) and reduced (MIS 5c and 5a) global ice volume phases (Shackleton, 1987). Sea surface temperatures reconstructed for the central-eastern North Atlantic also show millennial-scale climate variability consisting of cold pulses (C25-20) and warm episodes (W24-20) (McManus et al, 1994;Sánchez Goñi et al, 1999;Shackleton et al, 2002). In central Europe, vegetation changes recorded in La Grande Pile lake sequence also describe millennial-scale variability from ∼ 111 ka alternating between periods characterized by reduced tree-pollen size (stadials) known as Woillard event, Melisey 1 and 2 and Montaigu event, and stages identified as episodes of forest development (interstadials) named St. Germain 1 and St. Germain 2 (Kukla, 1997).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

et al. 2014

View full text Add to dashboard Cite

Abstract. We present new annual sedimentological proxies and sub-annual element scanner data from the Lago Grande di Monticchio (MON) sediment record for the sequence 76-112 thousand years before present (ka). They are combined with the previously published decadal to centennial resolved pollen assemblage in order to provide a comprehensive reconstruction of six major abrupt stadial spells (MON 1-6) in the central Mediterranean during the early phase of the last glaciation. These climatic oscillations are defined by intervals of thicker varves and high Ti-counts and coincide with episodes of forest depletion interpreted as Mediterranean stadial conditions (cold winter/dry summer). Our chronology, labelled as MON-2014, has been updated for the study interval by tephrochronology and repeated and more precise varve counts and is independent from ice-core and speleothem chronologies. The high-resolution Monticchio data then have been compared in detail with the Greenland ice-core δ 18 O record (NorthGRIP) and the northern Alps speleothem δ 18 O calcite data (NALPS). Based on visual inspection of major changes in the proxy data, MON 2-6 are suggested to correlate with Greenland stadials (GS) 25-20. MON 1 (Woillard event), the first and shortest cooling spell in the Mediterranean after a long phase of stable interglacial conditions, has no counterpart in the Greenland ice core, but coincides with the lowest isotope values at the end of the gradual decrease in δ 18 O ice in NorthGRIP during the second half of the Greenland interstadial (GI) 25. MON 3 is the least pronounced cold spell and shows gradual transitions, whereas its NorthGRIP counterpart GS 24 is characterized by sharp changes in the isotope records. MON 2 and MON 4 are the longest and most pronounced oscillations in the MON sediments in good agreement with their counterparts identified in the ice and spelethem records. The length of MON 4 (correlating with GS 22) supports the duration of stadial proposed by the NALPS timescales and suggests ca. 500 year longer duration than calculated by the ice-core chronologies GICC05 modelext and AICC2012. Absolute dating of the cold spells provided by the MON-2014 chronology shows good agreement among the MON-2014, the GICC05 modelext and the NALPS timescales for the period between 112 and 100 ka. In contrast, the MON-2014 varve chronology dates the oscillations MON 4 to MON 6 (92-76 ka) as ca. 3500 years older than the most likely corresponding stadials GS 22 to GS 20 by the other chronologies.

show abstract

Section: Millennial-and Sub-millennial Scale Climate Variability In Lmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

et al. 2014

View full text Add to dashboard Cite

show abstract

“…This improvement within paleoclimatic reconstructions allows us to highlight important climatic shifts that have previously been recognized in marine records (McManus et al, 1994(McManus et al, , 2002Shackleton et al, 2002) but have been only poorly documented in continental records. Figure 6 illustrates some cooling events identified in both oceanic and continental records.…”

Section: Application On Eemian Of La Grande Pilementioning

confidence: 99%

Climate reconstruction from pollen and δ<sup>13</sup>C records using inverse vegetation modeling – Implication for past and future climates

2009

View full text Add to dashboard Cite

Abstract. An improved inverse vegetation model has been designed to better specify both temperature and precipitation estimates from vegetation descriptions. It is based on the BIOME4 vegetation model and uses both vegetation δ 13 C and biome as constraints. Previous inverse models based on only one of the two proxies were already improvements over standard reconstruction methods such as the modern analog since these did not take into account some external forcings, for example CO 2 concentration. This new approach makes it possible to describe a potential "isotopic niche" defined by analogy with the "climatic niche" theory. Boreal and temperate biomes simulated by BIOME4 are considered in this study. We demonstrate the impact of CO 2 concentration on biome existence domains by replacing a "most likely biome" with another with increased CO 2 concentration. Additionally, the climate imprint on δ 13 C between and within biomes is shown: the colder the biome, the lighter its potential isotopic niche; and the higher the precipitation, the lighter the δ 13 C.For paleoclimate purposes, previous inverse models based on either biome or δ 13 C did not allow informative paleoclimatic reconstructions of both precipitation and temperature. Application of the new approach to the Eemian of La Grande Pile palynological and geochemical records reduces the range in precipitation values by more than 50% reduces the range in temperatures by about 15% compared to previCorrespondence to: C. Hatté (christine.hatte@lsce.ipsl.fr) ous inverse modeling approaches. This shows evidence of climate instabilities during Eemian period that can be correlated with independent continental and marine records.

show abstract

“…The most prominent increases of ice-rafted detritus, accompanied by southward and eastward expansion of cold water in the North Atlantic during MIS 5e and 5d, are Heinrich event H11 and the cold-water event C24 (McManus et al, 1994;Fronval and Jansen, 1997;Chapman and Shackleton, 1999;Knudsen et al, 2002;Shackleton et al, 2002). H11 occurs close to the MIS 5/6 boundary.…”

Section: Surface Ocean Stratigraphymentioning

confidence: 99%

Last Interglacial Climates

Kukla¹,

et al. 2002

View full text Add to dashboard Cite

The last interglacial, commonly understood as an interval with climate as warm or warmer than today, is represented by marine isotope stage (MIS) 5e, which is a proxy record of low global ice volume and high sea level. It is arbitrarily dated to begin at approximately 130,000 yr B.P. and end at 116,000 yr B.P. with the onset of the early glacial unit MIS 5d. The age of the stage is determined by correlation to uranium-thorium dates of raised coral reefs. The most detailed proxy record of interglacial climate is found in the Vostok ice core where the temperature reached current levels 132,000 yr ago and continued rising for another two millennia. Approximately 127,000 yr ago the Eemian mixed forests were established in Europe. They developed through a characteristic succession of tree species, probably surviving well into the early glacial stage in southern parts of Europe.

show abstract

High-resolution climate records from the North Atlantic during the last interglacial

Cited by 439 publications

References 18 publications

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

Climate reconstruction from pollen and δ<sup>13</sup>C records using inverse vegetation modeling – Implication for past and future climates

Last Interglacial Climates

Contact Info

Product

Resources

About

High-resolution climate records from the North Atlantic during the last interglacial

Cited by 439 publications

References 18 publications

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations

Climate reconstruction from pollen and δ&lt;sup&gt;13&lt;/sup&gt;C records using inverse vegetation modeling – Implication for past and future climates

Last Interglacial Climates

Contact Info

Product

Resources

About

Climate reconstruction from pollen and δ<sup>13</sup>C records using inverse vegetation modeling – Implication for past and future climates