Articles | Volume 12, issue 4
https://doi.org/10.5194/cp-12-1029-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/cp-12-1029-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Climate change and ecosystems dynamics over the last 6000 years in the Middle Atlas, Morocco
Majda Nourelbait
CORRESPONDING AUTHOR
Université Chouaib Doukkali, Laboratoire Géosciences Marines
et Sciences des Sols, Unité Associée CNRST(URAC45), El Jadida,
Morocco
Université Cadi Ayyad, FST, laboratoire de Géoressources, Unité Associée CNRST (URAC42), Gueliz Marrakech, Morocco
Université Montpellier 2, Institut des Sciences de l'Evolution,
UMR UM2-CNRS-IRD5554, Montpellier, France
Ali Rhoujjati
Université Cadi Ayyad, FST, laboratoire de Géoressources, Unité Associée CNRST (URAC42), Gueliz Marrakech, Morocco
Abdelfattah Benkaddour
Université Cadi Ayyad, FST, laboratoire de Géoressources, Unité Associée CNRST (URAC42), Gueliz Marrakech, Morocco
Matthieu Carré
Université Montpellier 2, Institut des Sciences de l'Evolution,
UMR UM2-CNRS-IRD5554, Montpellier, France
Frederique Eynaud
University of Bordeaux, UMR EPOC5805, CS50023, 33615 Pessac, Bordeaux, France
Philippe Martinez
University of Bordeaux, UMR EPOC5805, CS50023, 33615 Pessac, Bordeaux, France
Rachid Cheddadi
Université Montpellier 2, Institut des Sciences de l'Evolution,
UMR UM2-CNRS-IRD5554, Montpellier, France
Related authors
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Claire Waelbroeck, Jerry Tjiputra, Chuncheng Guo, Kerim H. Nisancioglu, Eystein Jansen, Natalia Vázquez Riveiros, Samuel Toucanne, Frédérique Eynaud, Linda Rossignol, Fabien Dewilde, Elodie Marchès, Susana Lebreiro, and Silvia Nave
Clim. Past, 19, 901–913, https://doi.org/10.5194/cp-19-901-2023, https://doi.org/10.5194/cp-19-901-2023, 2023
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The precise geometry and extent of Atlantic circulation changes that accompanied rapid climate changes of the last glacial period are still unknown. Here, we combine carbon isotopic records from 18 Atlantic sediment cores with numerical simulations and decompose the carbon isotopic change across a cold-to-warm transition into remineralization and circulation components. Our results show that the replacement of southern-sourced by northern-sourced water plays a dominant role below ~ 3000 m depth.
Mélanie Wary, Frédérique Eynaud, Didier Swingedouw, Valérie Masson-Delmotte, Jens Matthiessen, Catherine Kissel, Jena Zumaque, Linda Rossignol, and Jean Jouzel
Clim. Past, 13, 729–739, https://doi.org/10.5194/cp-13-729-2017, https://doi.org/10.5194/cp-13-729-2017, 2017
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The last glacial period was punctuated by abrupt climatic variations, whose cold atmospheric phases have been commonly associated with cold sea-surface temperatures and expansion of sea ice in the North Atlantic and adjacent seas. Here we provide direct evidence of a regional paradoxical see-saw pattern: cold Greenland and North Atlantic phases coincide with warmer sea-surface conditions and shorter seasonal sea-ice cover durations in the Norwegian Sea as compared to warm phases.
Yannick Mary, Frédérique Eynaud, Christophe Colin, Linda Rossignol, Sandra Brocheray, Meryem Mojtahid, Jennifer Garcia, Marion Peral, Hélène Howa, Sébastien Zaragosi, and Michel Cremer
Clim. Past, 13, 201–216, https://doi.org/10.5194/cp-13-201-2017, https://doi.org/10.5194/cp-13-201-2017, 2017
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In the boreal Atlantic, the subpolar and subtropical gyres (SPG and STG respectively) are key elements of the Atlantic Meridional Overturning Circulation (AMOC) cell and contribute to climate modulations over Europe. Here we document the last 10 kyr evolution of sea-surface temperatures over the North Atlantic with a focus on new data obtained from an exceptional sedimentary archive retrieved the southern Bay of Biscay, enabling the study of Holocene archives at (infra)centennial scales.
Aurélie Penaud, Frédérique Eynaud, Antje Helga Luise Voelker, and Jean-Louis Turon
Biogeosciences, 13, 5357–5377, https://doi.org/10.5194/bg-13-5357-2016, https://doi.org/10.5194/bg-13-5357-2016, 2016
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This paper presents new analyses conducted at high resolution in the Gulf of Cadiz over the last 50 ky. Palaeohydrological changes in these subtropical latitudes are discussed through dinoflagellate cyst assemblages but also dinocyst transfer function results, implying sea surface temperature and salinity as well as annual productivity reconstructions. This study is thus important for our understanding of past and future productivity regimes, also implying consequences on the biological pump.
Pedro Tarroso, José Carrión, Miriam Dorado-Valiño, Paula Queiroz, Luisa Santos, Ana Valdeolmillos-Rodríguez, Paulo Célio Alves, José Carlos Brito, and Rachid Cheddadi
Clim. Past, 12, 1137–1149, https://doi.org/10.5194/cp-12-1137-2016, https://doi.org/10.5194/cp-12-1137-2016, 2016
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The climate fluctuates between warm and cold stages, forcing biodiversity to shift patterns according to climatic tolerance. Here we provide an analysis of the shifting patterns of climate in the Iberian Peninsula for the last 15 000 years. By analysing climate in the spatial and temporal dimensions, we were able to divide the peninsula into areas that shared similar climate patterns and to derive a map of climate stability for this period.
O. Raji, L. Dezileau, U. Von Grafenstein, S. Niazi, M. Snoussi, and P. Martinez
Nat. Hazards Earth Syst. Sci., 15, 203–211, https://doi.org/10.5194/nhess-15-203-2015, https://doi.org/10.5194/nhess-15-203-2015, 2015
M. Guillevic, L. Bazin, A. Landais, C. Stowasser, V. Masson-Delmotte, T. Blunier, F. Eynaud, S. Falourd, E. Michel, B. Minster, T. Popp, F. Prié, and B. M. Vinther
Clim. Past, 10, 2115–2133, https://doi.org/10.5194/cp-10-2115-2014, https://doi.org/10.5194/cp-10-2115-2014, 2014
G. Milzer, J. Giraudeau, S. Schmidt, F. Eynaud, and J. Faust
Clim. Past, 10, 305–323, https://doi.org/10.5194/cp-10-305-2014, https://doi.org/10.5194/cp-10-305-2014, 2014
T. Caley, S. Zaragosi, J. Bourget, P. Martinez, B. Malaizé, F. Eynaud, L. Rossignol, T. Garlan, and N. Ellouz-Zimmermann
Biogeosciences, 10, 7347–7359, https://doi.org/10.5194/bg-10-7347-2013, https://doi.org/10.5194/bg-10-7347-2013, 2013
J. Etourneau, R. S. Robinson, P. Martinez, and R. Schneider
Biogeosciences, 10, 5663–5670, https://doi.org/10.5194/bg-10-5663-2013, https://doi.org/10.5194/bg-10-5663-2013, 2013
C. V. Dylmer, J. Giraudeau, F. Eynaud, K. Husum, and A. De Vernal
Clim. Past, 9, 1505–1518, https://doi.org/10.5194/cp-9-1505-2013, https://doi.org/10.5194/cp-9-1505-2013, 2013
G. Milzer, J. Giraudeau, J. Faust, J. Knies, F. Eynaud, and C. Rühlemann
Biogeosciences, 10, 4433–4448, https://doi.org/10.5194/bg-10-4433-2013, https://doi.org/10.5194/bg-10-4433-2013, 2013
J. Zumaque, F. Eynaud, S. Zaragosi, F. Marret, K. M. Matsuzaki, C. Kissel, D. M. Roche, B. Malaizé, E. Michel, I. Billy, T. Richter, and E. Palis
Clim. Past, 8, 1997–2017, https://doi.org/10.5194/cp-8-1997-2012, https://doi.org/10.5194/cp-8-1997-2012, 2012
Related subject area
Subject: Climate Modelling | Archive: Terrestrial Archives | Timescale: Holocene
Internal climate variability and spatial temperature correlations during the past 2000 years
Mid-Holocene climate change over China: model–data discrepancy
The 4.2 ka BP event in the Levant
The evolution of sub-monsoon systems in the Afro-Asian monsoon region during the Holocene– comparison of different transient climate model simulations
Regional climate model simulations for Europe at 6 and 0.2 k BP: sensitivity to changes in anthropogenic deforestation
Investigating the consistency between proxy-based reconstructions and climate models using data assimilation: a mid-Holocene case study
Skill and reliability of climate model ensembles at the Last Glacial Maximum and mid-Holocene
Proxy benchmarks for intercomparison of 8.2 ka simulations
Influence of orbital forcing and solar activity on water isotopes in precipitation during the mid- and late Holocene
Simulated oxygen isotopes in cave drip water and speleothem calcite in European caves
Mechanisms for European summer temperature response to solar forcing over the last millennium
Holocene land-cover reconstructions for studies on land cover-climate feedbacks
On the importance of paleoclimate modelling for improving predictions of future climate change
Pepijn Bakker, Hugues Goosse, and Didier M. Roche
Clim. Past, 18, 2523–2544, https://doi.org/10.5194/cp-18-2523-2022, https://doi.org/10.5194/cp-18-2523-2022, 2022
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Natural climate variability plays an important role in the discussion of past and future climate change. Here we study centennial temperature variability and the role of large-scale ocean circulation variability using different climate models, geological reconstructions and temperature observations. Unfortunately, uncertainties in models and geological reconstructions are such that more research is needed before we can describe the characteristics of natural centennial temperature variability.
Yating Lin, Gilles Ramstein, Haibin Wu, Raj Rani, Pascale Braconnot, Masa Kageyama, Qin Li, Yunli Luo, Ran Zhang, and Zhengtang Guo
Clim. Past, 15, 1223–1249, https://doi.org/10.5194/cp-15-1223-2019, https://doi.org/10.5194/cp-15-1223-2019, 2019
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The mid-Holocene has been an excellent target for comparing models and data. This work shows that, over China, all the ocean–atmosphere general circulation models involved in PMIP3 show a very large discrepancy with pollen data reconstruction when comparing annual and seasonal temperature. It demonstrates that to reconcile models and data and to capture the signature of seasonal thermal response, it is necessary to integrate non-linear processes, particularly those related to vegetation changes.
David Kaniewski, Nick Marriner, Rachid Cheddadi, Joël Guiot, and Elise Van Campo
Clim. Past, 14, 1529–1542, https://doi.org/10.5194/cp-14-1529-2018, https://doi.org/10.5194/cp-14-1529-2018, 2018
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Studies have long suggested that a protracted drought phase, termed the 4.2 ka BP event, directly impacted subsistence systems (dry farming agro-production, pastoral nomadism, and fishing) and outlying nomad habitats, forcing rain-fed cereal agriculturalists into habitat-tracking when agro-innovations were not available. Here, we focus on this crucial period to examine whether drought was active in the eastern Mediterranean Old World, especially in the Levant.
A. Dallmeyer, M. Claussen, N. Fischer, K. Haberkorn, S. Wagner, M. Pfeiffer, L. Jin, V. Khon, Y. Wang, and U. Herzschuh
Clim. Past, 11, 305–326, https://doi.org/10.5194/cp-11-305-2015, https://doi.org/10.5194/cp-11-305-2015, 2015
G. Strandberg, E. Kjellström, A. Poska, S. Wagner, M.-J. Gaillard, A.-K. Trondman, A. Mauri, B. A. S. Davis, J. O. Kaplan, H. J. B. Birks, A. E. Bjune, R. Fyfe, T. Giesecke, L. Kalnina, M. Kangur, W. O. van der Knaap, U. Kokfelt, P. Kuneš, M. Lata\l owa, L. Marquer, F. Mazier, A. B. Nielsen, B. Smith, H. Seppä, and S. Sugita
Clim. Past, 10, 661–680, https://doi.org/10.5194/cp-10-661-2014, https://doi.org/10.5194/cp-10-661-2014, 2014
A. Mairesse, H. Goosse, P. Mathiot, H. Wanner, and S. Dubinkina
Clim. Past, 9, 2741–2757, https://doi.org/10.5194/cp-9-2741-2013, https://doi.org/10.5194/cp-9-2741-2013, 2013
J. C. Hargreaves, J. D. Annan, R. Ohgaito, A. Paul, and A. Abe-Ouchi
Clim. Past, 9, 811–823, https://doi.org/10.5194/cp-9-811-2013, https://doi.org/10.5194/cp-9-811-2013, 2013
C. Morrill, D. M. Anderson, B. A. Bauer, R. Buckner, E. P. Gille, W. S. Gross, M. Hartman, and A. Shah
Clim. Past, 9, 423–432, https://doi.org/10.5194/cp-9-423-2013, https://doi.org/10.5194/cp-9-423-2013, 2013
S. Dietrich, M. Werner, T. Spangehl, and G. Lohmann
Clim. Past, 9, 13–26, https://doi.org/10.5194/cp-9-13-2013, https://doi.org/10.5194/cp-9-13-2013, 2013
A. Wackerbarth, P. M. Langebroek, M. Werner, G. Lohmann, S. Riechelmann, A. Borsato, and A. Mangini
Clim. Past, 8, 1781–1799, https://doi.org/10.5194/cp-8-1781-2012, https://doi.org/10.5194/cp-8-1781-2012, 2012
D. Swingedouw, L. Terray, J. Servonnat, and J. Guiot
Clim. Past, 8, 1487–1495, https://doi.org/10.5194/cp-8-1487-2012, https://doi.org/10.5194/cp-8-1487-2012, 2012
M.-J. Gaillard, S. Sugita, F. Mazier, A.-K. Trondman, A. Broström, T. Hickler, J. O. Kaplan, E. Kjellström, U. Kokfelt, P. Kuneš, C. Lemmen, P. Miller, J. Olofsson, A. Poska, M. Rundgren, B. Smith, G. Strandberg, R. Fyfe, A. B. Nielsen, T. Alenius, L. Balakauskas, L. Barnekow, H. J. B. Birks, A. Bjune, L. Björkman, T. Giesecke, K. Hjelle, L. Kalnina, M. Kangur, W. O. van der Knaap, T. Koff, P. Lagerås, M. Latałowa, M. Leydet, J. Lechterbeck, M. Lindbladh, B. Odgaard, S. Peglar, U. Segerström, H. von Stedingk, and H. Seppä
Clim. Past, 6, 483–499, https://doi.org/10.5194/cp-6-483-2010, https://doi.org/10.5194/cp-6-483-2010, 2010
J. C. Hargreaves and J. D. Annan
Clim. Past, 5, 803–814, https://doi.org/10.5194/cp-5-803-2009, https://doi.org/10.5194/cp-5-803-2009, 2009
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Short summary
The present study is related the climate changes and their environmental impacts during the last 6 ky from a fossil record collected in the Middle Atlas, Morocco. We used the reconstruction of three climate variables and geo-chemical elements to evaluate the relationships between all the environmental variables. In summary, this present study confirms the overall climate stability over the last 6 ky and highlights the presence of a short and abrupt climate event at about 5.2 ka cal BP.
The present study is related the climate changes and their environmental impacts during the last...
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