What caused the unseasonal extreme dust storm in Uzbekistan during November 2021?
Abstract An unseasonal dust storm hit large parts of Central Asia on 4–5 November 2021, setting records for the column aerosol burden and fine particulate concentration in Tashkent, Uzbekistan. The dust event originated from an agropastoral region in southern Kazakhstan, where the soil erodibility w...
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Online Access: | http://dx.doi.org/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af/pdf |
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crioppubl:10.1088/1748-9326/ad02af 2024-06-02T08:07:31+00:00 What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? Xi, Xin Steinfeld, Daniel Cavallo, Steven M Wang, Jun Chen, Jiquan Zulpykharov, Kanat Henebry, Geoffrey M Earth Sciences Division 2023 http://dx.doi.org/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 18, issue 11, page 114029 ISSN 1748-9326 journal-article 2023 crioppubl https://doi.org/10.1088/1748-9326/ad02af 2024-05-07T14:06:02Z Abstract An unseasonal dust storm hit large parts of Central Asia on 4–5 November 2021, setting records for the column aerosol burden and fine particulate concentration in Tashkent, Uzbekistan. The dust event originated from an agropastoral region in southern Kazakhstan, where the soil erodibility was enhanced by a prolonged agricultural drought resulting from La Niña-related precipitation deficit and persistent high atmospheric evaporative demand. The dust outbreak was triggered by sustained postfrontal northerly winds during an extreme cold air outbreak. The cold air and dust outbreaks were preceded by a chain of processes consisting of recurrent synoptic-scale transient Rossby wave packets over the North Pacific and North Atlantic, upper-level wave breaking and blocking over Greenland, followed by high-latitude blocking over Northern Europe and West Siberia, and the equatorward shift of a tropopause polar vortex and cold pool into southern Kazakhstan. Our study suggests that the historic dust storm in Uzbekistan was a compound weather event driven by cold extreme, high winds, and drought precondition. Article in Journal/Newspaper Greenland North Atlantic Siberia IOP Publishing Greenland Pacific Environmental Research Letters 18 11 114029 |
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Abstract An unseasonal dust storm hit large parts of Central Asia on 4–5 November 2021, setting records for the column aerosol burden and fine particulate concentration in Tashkent, Uzbekistan. The dust event originated from an agropastoral region in southern Kazakhstan, where the soil erodibility was enhanced by a prolonged agricultural drought resulting from La Niña-related precipitation deficit and persistent high atmospheric evaporative demand. The dust outbreak was triggered by sustained postfrontal northerly winds during an extreme cold air outbreak. The cold air and dust outbreaks were preceded by a chain of processes consisting of recurrent synoptic-scale transient Rossby wave packets over the North Pacific and North Atlantic, upper-level wave breaking and blocking over Greenland, followed by high-latitude blocking over Northern Europe and West Siberia, and the equatorward shift of a tropopause polar vortex and cold pool into southern Kazakhstan. Our study suggests that the historic dust storm in Uzbekistan was a compound weather event driven by cold extreme, high winds, and drought precondition. |
author2 |
Earth Sciences Division |
format |
Article in Journal/Newspaper |
author |
Xi, Xin Steinfeld, Daniel Cavallo, Steven M Wang, Jun Chen, Jiquan Zulpykharov, Kanat Henebry, Geoffrey M |
spellingShingle |
Xi, Xin Steinfeld, Daniel Cavallo, Steven M Wang, Jun Chen, Jiquan Zulpykharov, Kanat Henebry, Geoffrey M What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
author_facet |
Xi, Xin Steinfeld, Daniel Cavallo, Steven M Wang, Jun Chen, Jiquan Zulpykharov, Kanat Henebry, Geoffrey M |
author_sort |
Xi, Xin |
title |
What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
title_short |
What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
title_full |
What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
title_fullStr |
What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
title_full_unstemmed |
What caused the unseasonal extreme dust storm in Uzbekistan during November 2021? |
title_sort |
what caused the unseasonal extreme dust storm in uzbekistan during november 2021? |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af https://iopscience.iop.org/article/10.1088/1748-9326/ad02af/pdf |
geographic |
Greenland Pacific |
geographic_facet |
Greenland Pacific |
genre |
Greenland North Atlantic Siberia |
genre_facet |
Greenland North Atlantic Siberia |
op_source |
Environmental Research Letters volume 18, issue 11, page 114029 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ad02af |
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Environmental Research Letters |
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18 |
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11 |
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114029 |
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