Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes
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 reco...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_235299 2023-05-15T17:33:39+02:00 Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes Sorrel, P. Popescu, S. Klotz, S. Suc, J. Oberhänsli, H. 2007 https://gfzpublic.gfz-potsdam.de/pubman/item/item_235299 unknown info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.11.006 https://gfzpublic.gfz-potsdam.de/pubman/item/item_235299 Quaternary Research 550 - Earth sciences info:eu-repo/semantics/article 2007 ftgfzpotsdam https://doi.org/10.1016/j.yqres.2006.11.006 2022-09-14T05:56:26Z 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 GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Quaternary Research 67 3 357 370 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
topic |
550 - Earth sciences |
spellingShingle |
550 - Earth sciences Sorrel, P. Popescu, S. Klotz, S. Suc, J. Oberhänsli, H. Climate variability in the Aral Sea basin (Central Asia) during the late Holocene based on vegetation changes |
topic_facet |
550 - Earth sciences |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Sorrel, P. Popescu, S. Klotz, S. Suc, J. Oberhänsli, H. |
author_facet |
Sorrel, P. Popescu, S. Klotz, S. Suc, J. Oberhänsli, H. |
author_sort |
Sorrel, P. |
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 |
publishDate |
2007 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_235299 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Quaternary Research |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.11.006 https://gfzpublic.gfz-potsdam.de/pubman/item/item_235299 |
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 |
_version_ |
1766132214562553856 |