Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s
Based on dust storm frequency (DSF) data from the China Meteorological Administration, Arctic sea-ice concentration (SIC) data from the Hadley Centre, and atmospheric reanalysis data from the National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR), te...
Published in: | Geological Magazine |
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Language: | English |
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CAMBRIDGE UNIV PRESS
2020
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Online Access: | http://ir.ieecas.cn/handle/361006/14817 https://doi.org/10.1017/S0016756819000967 |
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ftchinacascieeca:oai:ir.ieecas.cn:361006/14817 2023-06-11T04:08:10+02:00 Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s Shang, Ke Liu, Xiaodong 2020-05-01 http://ir.ieecas.cn/handle/361006/14817 https://doi.org/10.1017/S0016756819000967 英语 eng CAMBRIDGE UNIV PRESS GEOLOGICAL MAGAZINE http://ir.ieecas.cn/handle/361006/14817 doi:10.1017/S0016756819000967 East Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train EURASIAN TELECONNECTION HAZE POLLUTION WAVE-ACTIVITY DESERT DUST CLIMATE CHINA PRECIPITATION CONNECTIONS PACIFIC ROLES Geology Geosciences Multidisciplinary 期刊论文 2020 ftchinacascieeca https://doi.org/10.1017/S0016756819000967 2023-05-08T13:24:50Z Based on dust storm frequency (DSF) data from the China Meteorological Administration, Arctic sea-ice concentration (SIC) data from the Hadley Centre, and atmospheric reanalysis data from the National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR), temporal variations and regime shifts of East Asian DSF and Arctic SIC during 1961-2015 are revealed, and the possible relationship between them is explored. The results show that East Asian DSF in spring is closely associated with the preceding winter SIC from the northern Greenland Sea to the Barents Sea (20 degrees W-60 degrees E, 74.5 degrees N-78.5 degrees N). In the past half-century, both East Asian DSF and Arctic SIC have shown significant declining trends, with consistent regime shifts in the early 1980s. Further statistical analyses indicate that the abrupt decrease of East Asian DSF in spring may be attributed to the concurrent sharp loss of Arctic SIC in the preceding winter. It is the loss of Arctic SIC that causes the atmospheric circulation anomalies downstream by stimulating a Rossby wave train, resulting in decelerated wind speed, dampened vertical wind shear and restrained synoptic-scale disturbances over the dust source region, eventually leading to the decline in East Asian DSF over decadal timescales. Report Arctic Barents Sea Greenland Greenland Sea Sea ice Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Arctic Barents Sea Greenland Pacific Geological Magazine 157 5 729 740 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
East Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train EURASIAN TELECONNECTION HAZE POLLUTION WAVE-ACTIVITY DESERT DUST CLIMATE CHINA PRECIPITATION CONNECTIONS PACIFIC ROLES Geology Geosciences Multidisciplinary |
spellingShingle |
East Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train EURASIAN TELECONNECTION HAZE POLLUTION WAVE-ACTIVITY DESERT DUST CLIMATE CHINA PRECIPITATION CONNECTIONS PACIFIC ROLES Geology Geosciences Multidisciplinary Shang, Ke Liu, Xiaodong Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
topic_facet |
East Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train EURASIAN TELECONNECTION HAZE POLLUTION WAVE-ACTIVITY DESERT DUST CLIMATE CHINA PRECIPITATION CONNECTIONS PACIFIC ROLES Geology Geosciences Multidisciplinary |
description |
Based on dust storm frequency (DSF) data from the China Meteorological Administration, Arctic sea-ice concentration (SIC) data from the Hadley Centre, and atmospheric reanalysis data from the National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR), temporal variations and regime shifts of East Asian DSF and Arctic SIC during 1961-2015 are revealed, and the possible relationship between them is explored. The results show that East Asian DSF in spring is closely associated with the preceding winter SIC from the northern Greenland Sea to the Barents Sea (20 degrees W-60 degrees E, 74.5 degrees N-78.5 degrees N). In the past half-century, both East Asian DSF and Arctic SIC have shown significant declining trends, with consistent regime shifts in the early 1980s. Further statistical analyses indicate that the abrupt decrease of East Asian DSF in spring may be attributed to the concurrent sharp loss of Arctic SIC in the preceding winter. It is the loss of Arctic SIC that causes the atmospheric circulation anomalies downstream by stimulating a Rossby wave train, resulting in decelerated wind speed, dampened vertical wind shear and restrained synoptic-scale disturbances over the dust source region, eventually leading to the decline in East Asian DSF over decadal timescales. |
format |
Report |
author |
Shang, Ke Liu, Xiaodong |
author_facet |
Shang, Ke Liu, Xiaodong |
author_sort |
Shang, Ke |
title |
Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
title_short |
Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
title_full |
Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
title_fullStr |
Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
title_full_unstemmed |
Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s |
title_sort |
relationship between the sharp decrease in dust storm frequency over east asia and the abrupt loss of arctic sea ice in the early 1980s |
publisher |
CAMBRIDGE UNIV PRESS |
publishDate |
2020 |
url |
http://ir.ieecas.cn/handle/361006/14817 https://doi.org/10.1017/S0016756819000967 |
geographic |
Arctic Barents Sea Greenland Pacific |
geographic_facet |
Arctic Barents Sea Greenland Pacific |
genre |
Arctic Barents Sea Greenland Greenland Sea Sea ice |
genre_facet |
Arctic Barents Sea Greenland Greenland Sea Sea ice |
op_relation |
GEOLOGICAL MAGAZINE http://ir.ieecas.cn/handle/361006/14817 doi:10.1017/S0016756819000967 |
op_doi |
https://doi.org/10.1017/S0016756819000967 |
container_title |
Geological Magazine |
container_volume |
157 |
container_issue |
5 |
container_start_page |
729 |
op_container_end_page |
740 |
_version_ |
1768381308398993408 |