Estimating crossing success of human agents across sea straits out of Africa in the Late Pleistocene

Hölzchen, Ericson; Hertler, Christine; Willmes, Christian; Anwar, I P; Mateos, Ana; Rodrı́guez, Jesús; Timm, Ingo J.

doi:10.1016/j.palaeo.2022.110845

Cited by 9 publications

(6 citation statements)

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“…Sea level records, together with deep‐sea temperature records, are also essential for (b) improving insights into the processes involved in changing Earth's long‐term climate state (e.g., Boettner et al., 2021; DeConto & Pollard, 2003; De Vleeschouwer et al., 2017; Foster & Rohling, 2013; Katz et al., 2008; K. G. Miller et al., 2020; Rohling et al., 2021; Westerhold et al., 2020); and (c) assessing whether, and to what extent, Earth's climate sensitivity to radiative forcing changes depended on the initial climate state, with relevance for anthropogenic climate change (e.g., Hansen et al., 2007, 2008; Köhler et al., 2010; Masson‐Delmotte et al., 2010; PALAEOSENS, 2012; Rohling et al., 2012, 2018; Stap et al., 2018; von der Heydt et al., 2016). Finally, enhanced understanding of sea‐level change supports: (d) quantification of coastal stability related to vertical crustal movements, including the influences of mantle dynamic topography and glacio‐isostatic adjustments (for references, see Section 2); and (e) improved determination of the drivers of past biogeographic and paleo‐anthropological migration, isolation, and diversification patterns (e.g., Abbate & Sagri, 2012; Adeleye et al., 2021; Armitage et al., 2011; Bailey, 2010; Elias et al., 1996; Fernandes et al., 2006; Gibert et al., 2003; Hill et al., 2022; Hölzchen et al., 2022; G. E. Lee et al., 2020; Machado et al., 2021; Molina‐Venegas et al., 2015; Qi et al., 2014; Rohling, Grant, et al., 2013; Rolland, 2013).…”

Section: Introductionmentioning

confidence: 99%

Comparison and Synthesis of Sea‐Level and Deep‐Sea Temperature Variations Over the Past 40 Million Years

Rohling

Foster

Gernon

et al. 2022

Reviews of Geophysics

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Section: Introductionmentioning

confidence: 99%

Comparison and Synthesis of Sea‐Level and Deep‐Sea Temperature Variations Over the Past 40 Million Years

Rohling

Foster

Gernon

et al. 2022

Reviews of Geophysics

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“…In Oscillayers, benthic δ 18 O records are first merged with Community Climate System Model Version 4 LGM-model simulations (Gent et al, 2011), and then extrapolated across the Plio-Pleistocene using the δ 18 O data. Oscillayers data shows a reasonably good match with independent time-slice GCM simulations (Gamisch, 2019) and has been used in several studies covering different time spans (Hölzchen et al, 2022;Lawing, 2021;McGuire & Lauer, 2020). ) is indicated by a closed blue circle.…”

Section: Observation and Simulation Datamentioning

confidence: 87%

South Asian Monsoon Variability and Arctic Sea Ice Extent Linkages During the Late Pliocene

Behera

Tiwari

Kumar

et al. 2022

Paleoceanog and Paleoclimatol

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The influence of a warming‐induced reduction in Arctic sea ice extent (SIE) on the South Asian monsoon (SoAM) is not well understood. The mid‐Piacenzian Warm Period (MPWP, 3.264–3.025 million years ago, Ma), the most recent warm climate event when the Earth's CO2 levels were similar to the present, is considered an analog for future global warming. We present a multi‐proxy high‐resolution record of SoAM variability during the late Pliocene (∼3.4–2.7 Ma) using denitrification, productivity, weathering, and terrestrial influx proxies from the eastern Arabian Sea (International Ocean Discovery Program Expedition 355). The proxy‐based SoAM reconstruction is independently verified using a hybrid model‐proxy data set (Oscillayers). We identify two distinct intervals of monsoon intensification—during the MPWP and at 2.9 Ma. The SoAM variability appears to result from an interplay between dynamic (Insolation, Arctic SIE variability, and southern tropical Indian Ocean surface temperature variability due to Indonesian Throughflow changes) and thermodynamic effects (global temperature change due to pCO2 variability). Using a late Pliocene Arctic spring sea ice concentration reconstruction, we find that lower (higher) Arctic SIE leads to stronger (weaker) late Pliocene SoAM via asymmetric interhemispheric energy export and through modulating jet stream flow and meridional circulation. Our finding of strengthened SoAM during the MPWP corroborates model results and implies that more intense precipitation is expected over South Asia with continued climate warming.

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“…Evidently, these threshold values are subjective and their impact on the results could be further investigated (not undertaken in this work) within a sensitivity analysis context. Additional effects hindering successful water crossings, such as hypothermia, fatigue, or dehydration, are not explicitly considered in this work; see [79] for a relevant recent publication.…”

Section: Methodsmentioning

confidence: 99%

Virtual Sea-Drifting Experiments between the Island of Cyprus and the Surrounding Mainland in the Early Prehistoric Eastern Mediterranean

et al. 2022

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Seaborne movement underpins frontier research in prehistoric archaeology, including water-crossings in the context of human dispersals, and island colonisation. Yet, it also controls the degree of interaction between locations, which in turn is essential for investigating the properties of maritime networks. The onset of the Holocene (circa 12,000 years ago) is a critical period for understanding the origins of early visitors/inhabitants to the island of Cyprus in the Eastern Mediterranean in connection with the spread of Neolithic cultures in the region. The research undertaken in this work exemplifies the synergies between archaeology, physical sciences and geomatics, towards providing novel insights on the feasibility of drift-induced seaborne movement and the corresponding trip duration between Cyprus and coastal regions on the surrounding mainland. The overarching objective is to support archaeological inquiry regarding the possible origins of these visitors/inhabitants—Anatolia and/or the Levant being two suggested origins.

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Estimating crossing success of human agents across sea straits out of Africa in the Late Pleistocene

Cited by 9 publications

References 100 publications

Comparison and Synthesis of Sea‐Level and Deep‐Sea Temperature Variations Over the Past 40 Million Years

Comparison and Synthesis of Sea‐Level and Deep‐Sea Temperature Variations Over the Past 40 Million Years

South Asian Monsoon Variability and Arctic Sea Ice Extent Linkages During the Late Pliocene

Virtual Sea-Drifting Experiments between the Island of Cyprus and the Surrounding Mainland in the Early Prehistoric Eastern Mediterranean

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