@article {2677,
	title = {Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe},
	journal = {Quaternary Science Reviews},
	volume = {212},
	year = {2019},
	month = {Jan-05-2019},
	pages = {108 - 120},
	abstract = {Paleoclimate reconstructions suggest that the complex variability within the Greenland stadial 1 (GS-1) over western Europe was governed by coupled ocean and atmospheric changes. However, few works from the North Atlantic mid-latitudes document both the GS-1 onset and its termination, which are often considered as single abrupt transition events. Here, we present a direct comparison between marine (alkenone-based sea surface temperatures) and terrestrial (pollen) data, at very high resolution (28 years mean), from the southwestern Iberian shelf record D13882. Our results reveal a rather complex climatic period with internally changing conditions. The GS-1 onset (GS-1a: 12890-12720 yr BP) is marked by a progressive cooling and drying; GS-1b (12720-12390 yr BP) is the coldest and driest phase; GS-1c (12390-12030 yr BP) is marked by a progressive warming and increase in moisture conditions; GS-1 termination (GS-1d: 12030-11770 yr BP) is marked by rapid switches between cool wet, cold dry and cool wet conditions. Although hydroclimate response was very unsteady throughout the GS-1 and in particular during its termination phase, the persistence of an open temperate and Mediterranean forest in southwestern Iberia during the entire episode suggests that at least some moisture was delivered via the Westerlies. We propose coupled ocean and atmospheric mechanisms to reproduce these scenaria. Changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) as well as variations in the North Atlantic sea-ice growth have favoured the displacement of the polar jet stream{\textquoteright}s latitudinal position and contributed to a complex spatial pattern and strength of the Westerlies across western Europe.},
	keywords = {Climate variability, Greenland stadial, Iberian margin, Jet stream, Moisture availability, North Atlantic, Paleoclimate, Westerlies, Younger Dryas Complex},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2019.03.033},
	url = {https://www.researchgate.net/publication/332292599_Coupled_ocean_and_atmospheric_changes_during_Greenland_stadial_1_in_southwestern_Europe},
	author = {Naughton, F. and Costas, S. and Gomes, S.D. and Desprat, S. and Rodrigues, T. and Sanchez Go{\~n}i, M.F. and Renssen, H. and Trigo, R. and Bronk-Ramsey, C. and Oliveira, D. and Salgueiro, E. and Voelker, A.H.L. and Abrantes, F.}
}
@article {2547,
	title = {Long-term variations in Iceland{\textendash}Scotland overflow strength during the Holocene},
	journal = {Climate of the Past},
	volume = {9},
	year = {2013},
	month = {Jan-01-2013},
	pages = {2073 - 2084},
	abstract = {The overflow of deep water from the Nordic seas into the North Atlantic plays a critical role in global ocean circulation and climate. Approximately half of this overflow occurs via the Iceland{\textendash}Scotland (I{\textendash}S) overflow, yet the history of its strength throughout the Holocene (~ 0{\textendash}11 700 yr ago, ka) is poorly constrained, with previous studies presenting apparently contradictory evidence regarding its long-term variability. Here, we provide a comprehensive reconstruction of I{\textendash}S overflow strength throughout the Holocene using sediment grain size data from a depth transect of 13 cores from the Iceland Basin. Our data are consistent with the hypothesis that the main axis of the I{\textendash}S overflow on the Iceland slope was shallower during the early Holocene, deepening to its present depth by ~ 7 ka. Our results also reveal weaker I{\textendash}S overflow during the early and late Holocene, with maximum overflow strength occurring at ~ 7 ka, the time of a regional climate thermal maximum. Climate model simulations suggest a shoaling of deep convection in the Nordic seas during the early and late Holocene, consistent with our evidence for weaker I{\textendash}S overflow during these intervals. Whereas the reduction in I{\textendash}S overflow strength during the early Holocene likely resulted from melting remnant glacial ice sheets, the decline throughout the last 7000 yr was caused by an orbitally induced increase in the amount of Arctic sea ice entering the Nordic seas. Although the flux of Arctic sea ice to the Nordic seas is expected to decrease throughout the next century, model simulations predict that under high emissions scenarios, competing effects, such as warmer sea surface temperatures in the Nordic seas, will result in reduced deep convection, likely driving a weaker I{\textendash}S overflow.},
	doi = {10.5194/cp-9-2073-201310.5194/cp-9-2073-2013-supplement},
	url = {http://www.clim-past.net/9/2073/2013},
	author = {Thornalley, D. J. R. and Blaschek, M. and Davies, F. J. and Praetorius, S. and Oppo, D. W. and McManus, J. F. and Hall, I. R. and Kleiven, H. and Renssen, H. and McCave, I. N.}
}
