Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes
International audience High-resolution pollen analyses (~50 yr) from sediment cores retrieved at Chernyshov Bay in the NW Large Aral Sea record shifts in vegetational development from subdesertic to steppe vegetation in the Aral Sea basin during the late Holocene. Using pollen data to quantify clima...
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ftinsu:oai:HAL:hal-00172305v1 2024-04-14T08:15:58+00:00 Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes Sorrel, Philippe Popescu, Speranta-Maria Klotz, Stefan Suc, Jean-Pierre Oberhänsli, Hedi German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut für Geowissenschaften, Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen 2007 https://hal.science/hal-00172305 https://doi.org/10.1016/j.yqres.2006.11.006 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.11.006 hal-00172305 https://hal.science/hal-00172305 doi:10.1016/j.yqres.2006.11.006 ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.science/hal-00172305 Quaternary Research, 2007, 67, pp.357-370. ⟨10.1016/j.yqres.2006.11.006⟩ Pollen analysis Vegetation Climate Aral Sea Late Holocene Central Asia Negative NAO [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2007 ftinsu https://doi.org/10.1016/j.yqres.2006.11.006 2024-03-21T17:22:50Z International audience High-resolution pollen analyses (~50 yr) from sediment cores retrieved at Chernyshov Bay in the NW Large Aral Sea record shifts in vegetational development from subdesertic to steppe vegetation in the Aral Sea basin during the late Holocene. Using pollen data to quantify climatic parameters, we reconstruct and date for the first time significant changes in moisture conditions in Central Asia during the past 2000 yr. Cold and arid conditions prevailed between ca. AD 0 and 400, AD 900 and 1150, and AD 1500 and 1650 with the extension of xeric vegetation dominated by steppe elements. These intervals are characterized by low winter and summer mean temperatures and low mean annual precipitation (Pmm <250 mm/yr). Conversely, the most suitable climate conditions occurred between ca. AD 400 and 900, and AD 1150 and 1450, when steppe vegetation was enriched by plants requiring moister conditions (Pmm ~250–500 mm/yr) and some trees developed. Our results are fairly consistent with other late Holocene records from the eastern Mediterranean region and the Middle East, showing that regional rainfall in Central Asia is predominantly controlled by the eastern Mediterranean cyclonic system when the North Atlantic Oscillation (NAO) is in a negative phase. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Institut national des sciences de l'Univers: HAL-INSU Quaternary Research 67 3 357 370 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Pollen analysis Vegetation Climate Aral Sea Late Holocene Central Asia Negative NAO [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Pollen analysis Vegetation Climate Aral Sea Late Holocene Central Asia Negative NAO [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Sorrel, Philippe Popescu, Speranta-Maria Klotz, Stefan Suc, Jean-Pierre Oberhänsli, Hedi Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
topic_facet |
Pollen analysis Vegetation Climate Aral Sea Late Holocene Central Asia Negative NAO [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience High-resolution pollen analyses (~50 yr) from sediment cores retrieved at Chernyshov Bay in the NW Large Aral Sea record shifts in vegetational development from subdesertic to steppe vegetation in the Aral Sea basin during the late Holocene. Using pollen data to quantify climatic parameters, we reconstruct and date for the first time significant changes in moisture conditions in Central Asia during the past 2000 yr. Cold and arid conditions prevailed between ca. AD 0 and 400, AD 900 and 1150, and AD 1500 and 1650 with the extension of xeric vegetation dominated by steppe elements. These intervals are characterized by low winter and summer mean temperatures and low mean annual precipitation (Pmm <250 mm/yr). Conversely, the most suitable climate conditions occurred between ca. AD 400 and 900, and AD 1150 and 1450, when steppe vegetation was enriched by plants requiring moister conditions (Pmm ~250–500 mm/yr) and some trees developed. Our results are fairly consistent with other late Holocene records from the eastern Mediterranean region and the Middle East, showing that regional rainfall in Central Asia is predominantly controlled by the eastern Mediterranean cyclonic system when the North Atlantic Oscillation (NAO) is in a negative phase. |
author2 |
German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut für Geowissenschaften, Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen |
format |
Article in Journal/Newspaper |
author |
Sorrel, Philippe Popescu, Speranta-Maria Klotz, Stefan Suc, Jean-Pierre Oberhänsli, Hedi |
author_facet |
Sorrel, Philippe Popescu, Speranta-Maria Klotz, Stefan Suc, Jean-Pierre Oberhänsli, Hedi |
author_sort |
Sorrel, Philippe |
title |
Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
title_short |
Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
title_full |
Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
title_fullStr |
Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
title_full_unstemmed |
Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
title_sort |
climate variability in the aral sea basin (central asia) during the late holocene based on vegetation changes |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00172305 https://doi.org/10.1016/j.yqres.2006.11.006 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.science/hal-00172305 Quaternary Research, 2007, 67, pp.357-370. ⟨10.1016/j.yqres.2006.11.006⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.11.006 hal-00172305 https://hal.science/hal-00172305 doi:10.1016/j.yqres.2006.11.006 |
op_doi |
https://doi.org/10.1016/j.yqres.2006.11.006 |
container_title |
Quaternary Research |
container_volume |
67 |
container_issue |
3 |
container_start_page |
357 |
op_container_end_page |
370 |
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1796314492734275584 |