Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation
Abstract Although moisture is an important factor affecting precipitation in arid Central Asia (ACA), the water vapour sources and their influencing factors are unclear. This study investigates the moisture sources of extreme precipitation events in summer over Northern ACA and in winter over Southe...
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crwiley:10.1002/joc.6683 2024-06-23T07:49:33+00:00 Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation Xie, Tingting Huang, Wei Chang, Shiqiao Zheng, Fei Chen, Jianhui Chen, Jie Chen, Fahu National Basic Research Program of China National Natural Science Foundation of China 2020 http://dx.doi.org/10.1002/joc.6683 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6683 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6683 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6683 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 41, issue S1 ISSN 0899-8418 1097-0088 journal-article 2020 crwiley https://doi.org/10.1002/joc.6683 2024-06-04T06:49:03Z Abstract Although moisture is an important factor affecting precipitation in arid Central Asia (ACA), the water vapour sources and their influencing factors are unclear. This study investigates the moisture sources of extreme precipitation events in summer over Northern ACA and in winter over Southern ACA. The results show that in summer over Northern ACA, the water vapour at low and upper atmospheric levels is mainly transported from the North Atlantic and the Arctic Ocean. In addition, the water vapour in winter over Southern ACA is mainly transported from the North Atlantic and the Northern Indian Ocean. Among these sources, anomalous moisture from the North Atlantic is transported to Northern and Southern ACA along the Mediterranean pressure ridge and the Aral Sea pressure trough. In addition, anomalous moisture in Northern ACA from the Arctic Ocean is closely associated with the negative height anomaly near ACA and with the positive height anomaly in the Mediterranean extending northward to the Arctic Ocean; this results in the high‐latitude moisture transporting along the western edge of the cyclone in Northern ACA. In Southern ACA, low‐latitude water vapour from the Northern Indian Ocean is affected by negative and positive height anomalies in Northwest and Southeast ACA. In addition, significant ascending motion occurs in the study area which provides the necessary dynamic conditions for precipitation. The precipitation variations in Northern and Southern ACA are also related to sea‐surface temperature variations, mainly in the North Atlantic, Arctic Ocean, Mediterranean Sea, and Northern Indian Ocean. Therefore, moisture from the North Atlantic, Arctic Ocean, and the Indian Ocean converge and together influence precipitation development during summer over Northern ACA and in winter over Southern ACA. Highlights Arctic Ocean and North Atlantic moisture together influence summer and autumn precipitation in northern arid Central Asia. Indian Ocean and North Atlantic moisture together influence spring and ... Article in Journal/Newspaper Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic North Atlantic Wiley Online Library Arctic Arctic Ocean Indian International Journal of Climatology 41 S1 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Although moisture is an important factor affecting precipitation in arid Central Asia (ACA), the water vapour sources and their influencing factors are unclear. This study investigates the moisture sources of extreme precipitation events in summer over Northern ACA and in winter over Southern ACA. The results show that in summer over Northern ACA, the water vapour at low and upper atmospheric levels is mainly transported from the North Atlantic and the Arctic Ocean. In addition, the water vapour in winter over Southern ACA is mainly transported from the North Atlantic and the Northern Indian Ocean. Among these sources, anomalous moisture from the North Atlantic is transported to Northern and Southern ACA along the Mediterranean pressure ridge and the Aral Sea pressure trough. In addition, anomalous moisture in Northern ACA from the Arctic Ocean is closely associated with the negative height anomaly near ACA and with the positive height anomaly in the Mediterranean extending northward to the Arctic Ocean; this results in the high‐latitude moisture transporting along the western edge of the cyclone in Northern ACA. In Southern ACA, low‐latitude water vapour from the Northern Indian Ocean is affected by negative and positive height anomalies in Northwest and Southeast ACA. In addition, significant ascending motion occurs in the study area which provides the necessary dynamic conditions for precipitation. The precipitation variations in Northern and Southern ACA are also related to sea‐surface temperature variations, mainly in the North Atlantic, Arctic Ocean, Mediterranean Sea, and Northern Indian Ocean. Therefore, moisture from the North Atlantic, Arctic Ocean, and the Indian Ocean converge and together influence precipitation development during summer over Northern ACA and in winter over Southern ACA. Highlights Arctic Ocean and North Atlantic moisture together influence summer and autumn precipitation in northern arid Central Asia. Indian Ocean and North Atlantic moisture together influence spring and ... |
author2 |
National Basic Research Program of China National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Xie, Tingting Huang, Wei Chang, Shiqiao Zheng, Fei Chen, Jianhui Chen, Jie Chen, Fahu |
spellingShingle |
Xie, Tingting Huang, Wei Chang, Shiqiao Zheng, Fei Chen, Jianhui Chen, Jie Chen, Fahu Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
author_facet |
Xie, Tingting Huang, Wei Chang, Shiqiao Zheng, Fei Chen, Jianhui Chen, Jie Chen, Fahu |
author_sort |
Xie, Tingting |
title |
Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
title_short |
Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
title_full |
Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
title_fullStr |
Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
title_full_unstemmed |
Moisture sources of extreme precipitation events in arid Central Asia and their relationship with atmospheric circulation |
title_sort |
moisture sources of extreme precipitation events in arid central asia and their relationship with atmospheric circulation |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/joc.6683 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6683 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6683 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6683 |
geographic |
Arctic Arctic Ocean Indian |
geographic_facet |
Arctic Arctic Ocean Indian |
genre |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic North Atlantic |
genre_facet |
Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic North Atlantic |
op_source |
International Journal of Climatology volume 41, issue S1 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.6683 |
container_title |
International Journal of Climatology |
container_volume |
41 |
container_issue |
S1 |
_version_ |
1802640028562620416 |