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...
Published in: | Atmosphere |
---|---|
Main Authors: | , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/atmos13081293 |
id |
ftmdpi:oai:mdpi.com:/2073-4433/13/8/1293/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2073-4433/13/8/1293/ 2023-08-20T04:03:51+02:00 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 agris 2022-08-15 application/pdf https://doi.org/10.3390/atmos13081293 EN eng Multidisciplinary Digital Publishing Institute Climatology https://dx.doi.org/10.3390/atmos13081293 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 13; Issue 8; Pages: 1293 Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin Text 2022 ftmdpi https://doi.org/10.3390/atmos13081293 2023-08-01T06:04:51Z 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. Text Arctic Chukchi Chukchi Sea Queen Elizabeth Islands Sea ice MDPI Open Access Publishing Arctic Chukchi Sea Pacific Atmosphere 13 8 1293 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin |
spellingShingle |
Arctic Sea ice atmospheric circulation early spring Meiyu cessation Yangtze–Huaihe River basin 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 |
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 |
Text |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13081293 |
op_coverage |
agris |
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; Volume 13; Issue 8; Pages: 1293 |
op_relation |
Climatology https://dx.doi.org/10.3390/atmos13081293 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos13081293 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
8 |
container_start_page |
1293 |
_version_ |
1774714282825482240 |