Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin
The timing of the cessation of Meiyu is closely connected to the amount of Meiyu rainfall and the commencement of the rainy season in North China. Accurately forecasting the Meiyu withdrawal date (MWD) over the Yangtze–Huaihe River basin (YHRB) has significant implications for the prevention and mit...
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ftdoajarticles:oai:doaj.org/article:77b0149c76cf49e0985b3dc333ca1c18 2024-01-07T09:41:11+01:00 Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin Jing Wang Ning Fu Ping Liang Mingcai Li 2022-08-01T00:00:00Z https://doi.org/10.3390/atmos13081293 https://doaj.org/article/77b0149c76cf49e0985b3dc333ca1c18 EN eng MDPI AG https://www.mdpi.com/2073-4433/13/8/1293 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13081293 2073-4433 https://doaj.org/article/77b0149c76cf49e0985b3dc333ca1c18 Atmosphere, Vol 13, Iss 8, p 1293 (2022) Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin Meteorology. Climatology QC851-999 article 2022 ftdoajarticles https://doi.org/10.3390/atmos13081293 2023-12-10T01:45:38Z The timing of the cessation of Meiyu is closely connected to the amount of Meiyu rainfall and the commencement of the rainy season in North China. Accurately forecasting the Meiyu withdrawal date (MWD) over the Yangtze–Huaihe River basin (YHRB) has significant implications for the prevention and mitigation of flooding in eastern China. This study observed an intimate out-of-phase relationship between MWD variations and early spring (March and April) Arctic Sea ice area (SIA) anomalies to the north of the Chukchi and Beaufort Seas, as well as SIA anomalies to the north of the Queen Elizabeth Islands (75° N–82° N, 170° E–130° W and 82° N–86° N, 130° W–80° W, respectively) on the interannual timescale. As such, these can be considered key Arctic Sea ice domains connected to Meiyu cessation in the YHRB. The Arctic SIA anomalies in the key domains persist from early spring to early summer (May and June), thus exerting a lag modulation effect on year-to-year changes in Meiyu cessation, which can be demonstrated through observational analysis and results from the Community Earth System Model Large Ensemble Numerical Simulation (CESM-LENS) project. Specifically, the preceding negative SIA anomalies in the key domains are linked to a planetary-scale Rossby wave-like pattern emanating over areas to the northwest of the Chukchi Sea. This tele-connected wave-like pattern is conducive to the generation and maintenance of a quasi-barotropic “north-low–south-high” meridional see-saw pattern over the East Asian–Western North Pacific sector in July, which is a pivotal circulation pattern responsible for delayed Meiyu termination. Furthermore, the situation is the opposite in response to increased sea ice in these key domains within the Arctic. This study proposes a significant cryospheric forcing indicator for Meiyu cessation over the YHRB, which may provide helpful information for operational forecasting of the withdrawal timing of the Meiyu over the YHRB. Article in Journal/Newspaper Arctic Chukchi Chukchi Sea Queen Elizabeth Islands Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Chukchi Sea Pacific Atmosphere 13 8 1293 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin Meteorology. Climatology QC851-999 |
spellingShingle |
Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin Meteorology. Climatology QC851-999 Jing Wang Ning Fu Ping Liang Mingcai Li Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
topic_facet |
Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin Meteorology. Climatology QC851-999 |
description |
The timing of the cessation of Meiyu is closely connected to the amount of Meiyu rainfall and the commencement of the rainy season in North China. Accurately forecasting the Meiyu withdrawal date (MWD) over the Yangtze–Huaihe River basin (YHRB) has significant implications for the prevention and mitigation of flooding in eastern China. This study observed an intimate out-of-phase relationship between MWD variations and early spring (March and April) Arctic Sea ice area (SIA) anomalies to the north of the Chukchi and Beaufort Seas, as well as SIA anomalies to the north of the Queen Elizabeth Islands (75° N–82° N, 170° E–130° W and 82° N–86° N, 130° W–80° W, respectively) on the interannual timescale. As such, these can be considered key Arctic Sea ice domains connected to Meiyu cessation in the YHRB. The Arctic SIA anomalies in the key domains persist from early spring to early summer (May and June), thus exerting a lag modulation effect on year-to-year changes in Meiyu cessation, which can be demonstrated through observational analysis and results from the Community Earth System Model Large Ensemble Numerical Simulation (CESM-LENS) project. Specifically, the preceding negative SIA anomalies in the key domains are linked to a planetary-scale Rossby wave-like pattern emanating over areas to the northwest of the Chukchi Sea. This tele-connected wave-like pattern is conducive to the generation and maintenance of a quasi-barotropic “north-low–south-high” meridional see-saw pattern over the East Asian–Western North Pacific sector in July, which is a pivotal circulation pattern responsible for delayed Meiyu termination. Furthermore, the situation is the opposite in response to increased sea ice in these key domains within the Arctic. This study proposes a significant cryospheric forcing indicator for Meiyu cessation over the YHRB, which may provide helpful information for operational forecasting of the withdrawal timing of the Meiyu over the YHRB. |
format |
Article in Journal/Newspaper |
author |
Jing Wang Ning Fu Ping Liang Mingcai Li |
author_facet |
Jing Wang Ning Fu Ping Liang Mingcai Li |
author_sort |
Jing Wang |
title |
Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
title_short |
Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
title_full |
Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
title_fullStr |
Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
title_full_unstemmed |
Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin |
title_sort |
possible impact of early spring arctic sea ice on meiyu cessation over the yangtze–huaihe river basin |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13081293 https://doaj.org/article/77b0149c76cf49e0985b3dc333ca1c18 |
geographic |
Arctic Chukchi Sea Pacific |
geographic_facet |
Arctic Chukchi Sea Pacific |
genre |
Arctic Chukchi Chukchi Sea Queen Elizabeth Islands Sea ice |
genre_facet |
Arctic Chukchi Chukchi Sea Queen Elizabeth Islands Sea ice |
op_source |
Atmosphere, Vol 13, Iss 8, p 1293 (2022) |
op_relation |
https://www.mdpi.com/2073-4433/13/8/1293 https://doaj.org/toc/2073-4433 doi:10.3390/atmos13081293 2073-4433 https://doaj.org/article/77b0149c76cf49e0985b3dc333ca1c18 |
op_doi |
https://doi.org/10.3390/atmos13081293 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
8 |
container_start_page |
1293 |
_version_ |
1787422011439448064 |