Control of wind strength and frequency in the Aral Sea basin during the late Holocene
International audience Changing content of detrital input in laminated sediments traced by XRF scanning and microfacies analyses reflect prominent variations in sedimentation processes in the Aral Sea. A high-resolution record of titanium from a core retrieved in the northwestern Large Aral Sea allo...
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ftccsdartic:oai:HAL:hal-00333367v1 2023-05-15T16:29:35+02:00 Control of wind strength and frequency in the Aral Sea basin during the late Holocene Sorrel, P. Oberhänsli, H. Boroffka, N. Nourgaliev, D. Dulski, P. Röhl, U. GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ) Faculty of Geology Kazan State University (KPFU) DFG Research Center for Ocean Margins (RCOM) Universität Bremen 2007-05-01 https://hal.archives-ouvertes.fr/hal-00333367 https://doi.org/10.1016/j.yqres.2006.12.003 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.12.003 hal-00333367 https://hal.archives-ouvertes.fr/hal-00333367 doi:10.1016/j.yqres.2006.12.003 ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.archives-ouvertes.fr/hal-00333367 Quaternary Research, Elsevier, 2007, 67 (3), pp.371-382. ⟨10.1016/j.yqres.2006.12.003⟩ Chemical composition Laminated sediments Wind dynamics Siberian High Aral Sea Late Holocene [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2007 ftccsdartic https://doi.org/10.1016/j.yqres.2006.12.003 2021-06-20T00:37:49Z International audience Changing content of detrital input in laminated sediments traced by XRF scanning and microfacies analyses reflect prominent variations in sedimentation processes in the Aral Sea. A high-resolution record of titanium from a core retrieved in the northwestern Large Aral Sea allows a continuous reconstruction of wind strength and frequency in western Central Asia for the past 1500 yr. During AD 450–700, AD 1210–1265, AD 1350–1750 and AD 1800–1975, detrital inputs (bearing titanium) are high, documenting an enhanced early spring atmospheric circulation associated with an increase in intensity of the Siberian High pressure system over Central Asia. In contrast, lower titanium content during AD 1750–1800 and AD 1980–1985 reflects a diminished influence of the Siberian High during early spring with a reduced atmospheric circulation. A moderate circulation characterizes the time period AD 700–1150. Unprecedented weakened atmospheric circulation over western Central Asia are inferred during ca. AD 1180–1210 and AD 1265–1310 with a considerable decrease in dust storm frequency, sedimentation rates, lamination thickness and detrital inputs (screened at 40-μm resolution). Our results are concurrent with changes in the intensity of the Siberian High during the past 1400 yr as reported in the GISP2 Ice Core from Greenland. Article in Journal/Newspaper Greenland ice core Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Greenland Quaternary Research 67 3 371 382 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Chemical composition Laminated sediments Wind dynamics Siberian High Aral Sea Late Holocene [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Chemical composition Laminated sediments Wind dynamics Siberian High Aral Sea Late Holocene [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Sorrel, P. Oberhänsli, H. Boroffka, N. Nourgaliev, D. Dulski, P. Röhl, U. Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
topic_facet |
Chemical composition Laminated sediments Wind dynamics Siberian High Aral Sea Late Holocene [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Changing content of detrital input in laminated sediments traced by XRF scanning and microfacies analyses reflect prominent variations in sedimentation processes in the Aral Sea. A high-resolution record of titanium from a core retrieved in the northwestern Large Aral Sea allows a continuous reconstruction of wind strength and frequency in western Central Asia for the past 1500 yr. During AD 450–700, AD 1210–1265, AD 1350–1750 and AD 1800–1975, detrital inputs (bearing titanium) are high, documenting an enhanced early spring atmospheric circulation associated with an increase in intensity of the Siberian High pressure system over Central Asia. In contrast, lower titanium content during AD 1750–1800 and AD 1980–1985 reflects a diminished influence of the Siberian High during early spring with a reduced atmospheric circulation. A moderate circulation characterizes the time period AD 700–1150. Unprecedented weakened atmospheric circulation over western Central Asia are inferred during ca. AD 1180–1210 and AD 1265–1310 with a considerable decrease in dust storm frequency, sedimentation rates, lamination thickness and detrital inputs (screened at 40-μm resolution). Our results are concurrent with changes in the intensity of the Siberian High during the past 1400 yr as reported in the GISP2 Ice Core from Greenland. |
author2 |
GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ) Faculty of Geology Kazan State University (KPFU) DFG Research Center for Ocean Margins (RCOM) Universität Bremen |
format |
Article in Journal/Newspaper |
author |
Sorrel, P. Oberhänsli, H. Boroffka, N. Nourgaliev, D. Dulski, P. Röhl, U. |
author_facet |
Sorrel, P. Oberhänsli, H. Boroffka, N. Nourgaliev, D. Dulski, P. Röhl, U. |
author_sort |
Sorrel, P. |
title |
Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
title_short |
Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
title_full |
Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
title_fullStr |
Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
title_full_unstemmed |
Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
title_sort |
control of wind strength and frequency in the aral sea basin during the late holocene |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00333367 https://doi.org/10.1016/j.yqres.2006.12.003 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core |
genre_facet |
Greenland ice core |
op_source |
ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.archives-ouvertes.fr/hal-00333367 Quaternary Research, Elsevier, 2007, 67 (3), pp.371-382. ⟨10.1016/j.yqres.2006.12.003⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2006.12.003 hal-00333367 https://hal.archives-ouvertes.fr/hal-00333367 doi:10.1016/j.yqres.2006.12.003 |
op_doi |
https://doi.org/10.1016/j.yqres.2006.12.003 |
container_title |
Quaternary Research |
container_volume |
67 |
container_issue |
3 |
container_start_page |
371 |
op_container_end_page |
382 |
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1766019296425672704 |