Articles | Volume 15, issue 5
https://doi.org/10.5194/cp-15-1757-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-15-1757-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Sep 2019
Research article |
| 16 Sep 2019
| 16 Sep 2019
Enhanced Mediterranean water cycle explains increased humidity during MIS 3 in North Africa
Mike Rogerson
CORRESPONDING AUTHOR
School of Environmental Sciences, University of Hull, Cottingham Road,
Hull, HU6 7RX, UK
Yuri Dublyansky
Institute of Geology, University of Innsbruck, Innrain 52, 6020
Innsbruck, Austria
Dirk L. Hoffmann
Department of Human Evolution, Max Planck Institute for Evolutionary
Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany
Marc Luetscher
Institute of Geology, University of Innsbruck, Innrain 52, 6020
Innsbruck, Austria
Swiss Institute for Speleology and Karst Studies (ISSKA), Rue de la Serre 68,
2300 La Chaux-de-Fonds, Switzerland
Paul Töchterle
Institute of Geology, University of Innsbruck, Innrain 52, 6020
Innsbruck, Austria
Christoph Spötl
Institute of Geology, University of Innsbruck, Innrain 52, 6020
Innsbruck, Austria
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Haiwei Zhang, Hai Cheng, Yanjun Cai, Christoph Spötl, Gayatri Kathayat, Ashish Sinha, R. Lawrence Edwards, and Liangcheng Tan
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The collapses of several Neolithic cultures in China are considered to have been associated with abrupt climate change during the 4.2 ka BP event; however, the hydroclimate of this event in China is still poorly known. Based on stalagmite records from monsoonal China, we found that north China was dry but south China was wet during this event. We propose that the rain belt remained longer at its southern position, giving rise to a pronounced humidity gradient between north and south China.
Arno Hartmann, Marc Luetscher, Ralf Wachter, Philipp Holz, Elisabeth Eiche, and Thomas Neumann
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We have developed a new mobile automated water sampling device for environmental research and other applications where waters need to be tested for compliance with environmental/health regulations. It has two main advantages over similar devices: firstly, it injects water samples directly into airtight vials to prevent any change in sample properties through contamination, evaporation and gas exchange. Secondly, it can hold up to 160 sample vials, while other devices only hold up to 24 vials.
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Here we present a multi-proxy study of flowstones in fractures of crystalline rocks with the aim of assessing the palaeoclimate significance of this new type of speleothem archive. Our results indicate a high degree of spatial heterogeneity, whereby changes in speleothem mineralogy and carbon isotope composition are likely governed by aquifer-internal processes. In contrast, the oxygen isotope composition reflects first-order climate variability.
C. Spötl and H. Cheng
Clim. Past, 10, 1349–1362, https://doi.org/10.5194/cp-10-1349-2014, https://doi.org/10.5194/cp-10-1349-2014, 2014
M. Rogerson, H. M. Pedley, A. Kelham, and J. D Wadhawan
Earth Surf. Dynam., 2, 197–216, https://doi.org/10.5194/esurf-2-197-2014, https://doi.org/10.5194/esurf-2-197-2014, 2014
M. Luetscher, M. Borreguero, G. E. Moseley, C. Spötl, and R. L. Edwards
The Cryosphere, 7, 1073–1081, https://doi.org/10.5194/tc-7-1073-2013, https://doi.org/10.5194/tc-7-1073-2013, 2013
V. E. Johnston, A. Borsato, C. Spötl, S. Frisia, and R. Miorandi
Clim. Past, 9, 99–118, https://doi.org/10.5194/cp-9-99-2013, https://doi.org/10.5194/cp-9-99-2013, 2013
Related subject area
Subject: Continental Surface Processes | Archive: Terrestrial Archives | Timescale: Milankovitch
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G. Q. Xiao, H. A. Abels, Z. Q. Yao, G. Dupont-Nivet, and F. J. Hilgen
Clim. Past, 6, 501–513, https://doi.org/10.5194/cp-6-501-2010, https://doi.org/10.5194/cp-6-501-2010, 2010
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Short summary
Rainfall in North Africa is known to vary through time and is likely to change as global climate warms. Here, we provide a new level of understanding about past rainfall in North Africa by looking at a stalagmite which formed within northeastern Libya between 67 and 30 thousand years ago. We find that at times more rain falls, and the associated moisture is mostly derived from the western Mediterranean during winter storms. Sometimes, water comes from the eastern Mediterranean.
Rainfall in North Africa is known to vary through time and is likely to change as global climate...
