Control of wind strength and frequency in the Aral Sea basin during the late Holocene
Abstract 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 continuou...
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Cambridge University Press (CUP)
2007
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Online Access: | http://dx.doi.org/10.1016/j.yqres.2006.12.003 http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400005081 |
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crcambridgeupr:10.1016/j.yqres.2006.12.003 2024-09-15T18:09:53+00:00 Control of wind strength and frequency in the Aral Sea basin during the late Holocene Sorrel, Philippe Oberhänsli, Hedi Boroffka, Nikolaus Nourgaliev, Danis Dulski, Peter Röhl, Ursula 2007 http://dx.doi.org/10.1016/j.yqres.2006.12.003 http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400005081 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 67, issue 3, page 371-382 ISSN 0033-5894 1096-0287 journal-article 2007 crcambridgeupr https://doi.org/10.1016/j.yqres.2006.12.003 2024-07-17T04:01:51Z Abstract 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 Cambridge University Press Quaternary Research 67 3 371 382 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract 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. |
format |
Article in Journal/Newspaper |
author |
Sorrel, Philippe Oberhänsli, Hedi Boroffka, Nikolaus Nourgaliev, Danis Dulski, Peter Röhl, Ursula |
spellingShingle |
Sorrel, Philippe Oberhänsli, Hedi Boroffka, Nikolaus Nourgaliev, Danis Dulski, Peter Röhl, Ursula Control of wind strength and frequency in the Aral Sea basin during the late Holocene |
author_facet |
Sorrel, Philippe Oberhänsli, Hedi Boroffka, Nikolaus Nourgaliev, Danis Dulski, Peter Röhl, Ursula |
author_sort |
Sorrel, Philippe |
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 |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1016/j.yqres.2006.12.003 http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589406001633?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400005081 |
genre |
Greenland ice core |
genre_facet |
Greenland ice core |
op_source |
Quaternary Research volume 67, issue 3, page 371-382 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
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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1810447478549381120 |