Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation
In this study, the daily observational precipitation data and NCEP reanalysis data during 1951–2014, Euler and Lagrangian method were used to investigate the moisture sources of summer extreme precipitation events in North Xinjiang. The results show that water vapor at low and upper levels of most s...
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ftdoajarticles:oai:doaj.org/article:7752c96bcad540b298d8966722c7909e 2023-05-15T14:59:25+02:00 Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation Wei Huang Shi-Qiao Chang Cheng-Ling Xie Zhi-Ping Zhang 2017-03-01T00:00:00Z https://doi.org/10.1016/j.accre.2017.02.001 https://doaj.org/article/7752c96bcad540b298d8966722c7909e EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674927816300648 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2017.02.001 https://doaj.org/article/7752c96bcad540b298d8966722c7909e Advances in Climate Change Research, Vol 8, Iss 1, Pp 12-17 (2017) North Xinjiang Moisture sources Extreme precipitation events Lagrangian trajectory model Indian Ocean Meteorology. Climatology QC851-999 Social sciences (General) H1-99 article 2017 ftdoajarticles https://doi.org/10.1016/j.accre.2017.02.001 2022-12-31T04:38:19Z In this study, the daily observational precipitation data and NCEP reanalysis data during 1951–2014, Euler and Lagrangian method were used to investigate the moisture sources of summer extreme precipitation events in North Xinjiang. The results show that water vapor at low and upper levels of most summer heavy rain (more than 50 mm d−1 and less than 100 mm d−1) in North Xinjiang are mainly transported by westerly circulation from the North Atlantic Ocean and the Eurasian continent. However, rainstorms of more than 100 mm d−1, which are rarely observed, are dominated by vertically integrated moisture from the North Atlantic, Arctic Oceans, and the Eurasian continent, in addition to low-level moisture from the Indian Ocean. Among these sources, the anomalous low-level moisture from the Indian Ocean, which is closely associated with stronger meridional circulation, is considered to be more important with respect to rainstorms. On the days prior to rainstorm days, stronger meridional circulation leads to an anomalous pressure gradient force, which can transport low-level moisture from the Indian Ocean along the eastern periphery of the Tibetan Plateau to North Xinjiang. Furthermore, moisture from the North Atlantic, Arctic Oceans, the Eurasian continent, and the Indian Ocean converge together to influence rainstorm development in this region. Article in Journal/Newspaper Arctic Atlantic Arctic Atlantic-Arctic North Atlantic Directory of Open Access Journals: DOAJ Articles Arctic Indian Advances in Climate Change Research 8 1 12 17 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
North Xinjiang Moisture sources Extreme precipitation events Lagrangian trajectory model Indian Ocean Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
spellingShingle |
North Xinjiang Moisture sources Extreme precipitation events Lagrangian trajectory model Indian Ocean Meteorology. Climatology QC851-999 Social sciences (General) H1-99 Wei Huang Shi-Qiao Chang Cheng-Ling Xie Zhi-Ping Zhang Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
topic_facet |
North Xinjiang Moisture sources Extreme precipitation events Lagrangian trajectory model Indian Ocean Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
description |
In this study, the daily observational precipitation data and NCEP reanalysis data during 1951–2014, Euler and Lagrangian method were used to investigate the moisture sources of summer extreme precipitation events in North Xinjiang. The results show that water vapor at low and upper levels of most summer heavy rain (more than 50 mm d−1 and less than 100 mm d−1) in North Xinjiang are mainly transported by westerly circulation from the North Atlantic Ocean and the Eurasian continent. However, rainstorms of more than 100 mm d−1, which are rarely observed, are dominated by vertically integrated moisture from the North Atlantic, Arctic Oceans, and the Eurasian continent, in addition to low-level moisture from the Indian Ocean. Among these sources, the anomalous low-level moisture from the Indian Ocean, which is closely associated with stronger meridional circulation, is considered to be more important with respect to rainstorms. On the days prior to rainstorm days, stronger meridional circulation leads to an anomalous pressure gradient force, which can transport low-level moisture from the Indian Ocean along the eastern periphery of the Tibetan Plateau to North Xinjiang. Furthermore, moisture from the North Atlantic, Arctic Oceans, the Eurasian continent, and the Indian Ocean converge together to influence rainstorm development in this region. |
format |
Article in Journal/Newspaper |
author |
Wei Huang Shi-Qiao Chang Cheng-Ling Xie Zhi-Ping Zhang |
author_facet |
Wei Huang Shi-Qiao Chang Cheng-Ling Xie Zhi-Ping Zhang |
author_sort |
Wei Huang |
title |
Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
title_short |
Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
title_full |
Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
title_fullStr |
Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
title_full_unstemmed |
Moisture sources of extreme summer precipitation events in North Xinjiang and their relationship with atmospheric circulation |
title_sort |
moisture sources of extreme summer precipitation events in north xinjiang and their relationship with atmospheric circulation |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.accre.2017.02.001 https://doaj.org/article/7752c96bcad540b298d8966722c7909e |
geographic |
Arctic Indian |
geographic_facet |
Arctic Indian |
genre |
Arctic Atlantic Arctic Atlantic-Arctic North Atlantic |
genre_facet |
Arctic Atlantic Arctic Atlantic-Arctic North Atlantic |
op_source |
Advances in Climate Change Research, Vol 8, Iss 1, Pp 12-17 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674927816300648 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2017.02.001 https://doaj.org/article/7752c96bcad540b298d8966722c7909e |
op_doi |
https://doi.org/10.1016/j.accre.2017.02.001 |
container_title |
Advances in Climate Change Research |
container_volume |
8 |
container_issue |
1 |
container_start_page |
12 |
op_container_end_page |
17 |
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1766331519191744512 |