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- PublicationRestrictedVolcanic ash layers illuminate the resilience of Neanderthals and early modern humans to natural hazards(2012-08)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Lowe, J.; Department of Geography, Royal Holloway University of London ;Barton, N.; Institute of Archaeology, Oxford University, ;Blockley, S.; Department of Geography, Royal Holloway University of London ;Ramsey, C. B.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Cullen, V. L.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Davies, W.; Archaeology Department, University of Southampton, National Oceanography Centre ;Gamble, C.; Archaeology Department, University of Southampton, National Oceanography Centre ;Grant, K.; School of Ocean and Earth Science, University of Southampton, ;Hardiman, M.; Department of Geography, Royal Holloway University of London, ;Housley, R.; Department of Geography, Royal Holloway University of London, ;Lane, C. S.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Lee, S.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Lewis, M.; Palaeontology Department, Natural History Museum, London ;MacLeod, A.; Department of Geography, Royal Holloway University of London, ;Menzies, M. A.; gDepartment of Earth Sciences, Royal Holloway University of London ;Muller, W.; gDepartment of Earth Sciences, Royal Holloway University of London ;Pollard, M.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Price, C.; Institute of Archaeology, Oxford University, ;Roberts, A. P.; Research School of Earth Sciences, Australian National University, ;Rohling, E. J.; School of Ocean and Earth Science, University of Southampton ;Satow, C.; Department of Geography, Royal Holloway University of London, ;Smith, V. C.; Research Laboratory for Archaeology and the History of Art, Oxford University, ;Stringer, C. B.; Palaeontology Department, Natural History Museum, London ;Tomlinson, E. L.; Department of Earth Sciences, Royal Holloway University of London ;White, D.; Institute of Archaeology, Oxford University, ;Albert, P.; Department of Earth Sciences, Royal Holloway University of London, ;Arienzo, I.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Barker, G.; McDonald Institute for Archaeological Research, University of Cambridge ;Boric, D.; Cardiff School of History, Ancient History, Archaeology and Religion, Cardiff University, ;Carandente, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Civetta, L.; Dipartimento di Scienze Fisiche, Università Federico II, 80126 Naples, ;Ferrier, C.; De la Préhistoire à l’Actuel: Culture, Environnement et Anthropologie, Préhistoire, Palèoenvironnement, Patrimonie, Unité Mixte de Recherche 5199 Centre National de la Recherche Scienti!que, Université Bordeaux ;Guadelli, J. L.; De la Préhistoire à l’Actuel: Culture, Environnement et Anthropologie, Préhistoire, Palèoenvironnement, Patrimonie, Unité Mixte de Recherche 5199 Centre National de la Recherche Scienti!que, Université Bordeaux ;Karkanas, P.; Ephoreia of Palaeoanthropology–Speleology of Southern Greece, 116 36 Athens, Greece; ;Koumouzelis, M.; Ephoreia of Palaeoanthropology–Speleology of Southern Greece, 116 36 Athens, Greece ;Muller, U.; Institute of Geosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany; ;Orsi, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Pross, J.; Institute of Geosciences, Goethe University Frankfurt, ;Rosi, M.; Dipartimento di Scienze della Terra, Università di Pisa ;Shalamanov-KorobarKorobas, L.; National Institution Museum of Macedonia, ;Sirakov, N.; National Institute of Archaeology and Museum of Bulgarian Academy of Sciences ;Tzedakis, P. C.; Department of Geography, University College London; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Marked changes in human dispersal and development during the Middle to Upper Paleolithic transition have been attributed to massive volcanic eruption and/or severe climatic deterioration. We test this concept using records of volcanic ash layers of the Campanian Ignimbrite eruption dated to ca. 40,000 y ago (40 ka B.P.). The distribution of the Campanian Ignimbrite has been enhanced by the discovery of cryptotephra deposits (volcanic ash layers that are not visible to the naked eye) in archaeological cave sequences. They enable us to synchronize archaeological and paleoclimatic records through the period of transition from Neanderthal to the earliest anatomically modern human populations in Europe. Our results con!rm that the combined effects of a major volcanic eruption and severe climatic cooling failed to have lasting impacts on Neanderthals or early modern humans in Europe. We infer that modern humans proved a greater competitive threat to indigenous populations than natural disasters.310 27 - PublicationRestrictedFirst ground-based observations of mesopause temperatures above the Eastern-Mediterranean Part I: Multi-day oscillations and tides(2017-03-01)
; ; ; ; ; ; ;Silber, I.; Department of Geosciences, Tel Aviv University, Tel Aviv, Israel ;Price, C.; Department of Geosciences, Tel Aviv University, Tel Aviv, Israel ;Schmidt, C.; German Remote Sensing Data Center – German Aerospace Center (DLR), Oberpfaffenhofen, Germany ;Wüst, S.; German Remote Sensing Data Center – German Aerospace Center (DLR), Oberpfaffenhofen, Germany ;Bittner, M.; German Remote Sensing Data Center – German Aerospace Center (DLR), Oberpfaffenhofen, Germany ;Pecora, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia; ; ; ; ; The mesopause region (~90 km altitude) is the coldest region of our atmosphere, and is found at the boundary between the upper mesosphere and lower thermosphere. Ground-based spectrometers, which are sensitive to the emissions from the hydroxyl (OH*) airglow layer (lying at ~87 km altitude), are used to monitor the temperature variability within the mesosphere-lower-thermosphere (MLT), at high temporal resolution. The variability of the MLT region of the atmosphere is driven by momentum deposition from gravity waves, atmospheric tides and planetary waves. The displacement of air caused by these waves can produce strong temperature, wind and species concentration perturbations. In this study we present an analysis of 4-years of OH* rotational temperature data, acquired with the German Aerospace Center (DLR) GRIPS-10 (Ground Based Infrared P-branch Spectrometer) instrument, which was installed in Israel in November 2011. This instrument provided the first long-term ground-based observations of airglow emissions in the Eastern Mediterranean. We show the nocturnal mean temperature analysis, which includes time series as well as spectral analysis of the data. In addition, we obtain (migrating) tidal oscillation estimates from the high resolution (1 min) data, by using harmonic fitting, and we analyze the variability of planetary wave signatures in the residual temperature data, which are retrieved after the removal of the tidal harmonic fits from the data. In this analysis of the residual data we find a dominant quasi-5–7 day planetary wave influence on the mesopause temperatures above the Eastern Mediterranean.136 11