Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming
Abstract Based on the zonal winds from the Modern‐Era Retrospective Analysis for Research and Applications, version 2 reanalysis data, we investigate the enhancement of an eastward propagating 4‐day wave (E4DW) during the 2019 Antarctic sudden stratospheric warming (SSW). The amplitudes of E4DW are...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
|
| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2022GL102704 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850229046235889664 |
|---|---|
| author | Jiahui Luo Zheng Ma Yun Gong Shaodong Zhang Qiao Xiao Chunming Huang Kaiming Huang |
| author_facet | Jiahui Luo Zheng Ma Yun Gong Shaodong Zhang Qiao Xiao Chunming Huang Kaiming Huang |
| author_sort | Jiahui Luo |
| collection | DOAJ |
| description | Abstract Based on the zonal winds from the Modern‐Era Retrospective Analysis for Research and Applications, version 2 reanalysis data, we investigate the enhancement of an eastward propagating 4‐day wave (E4DW) during the 2019 Antarctic sudden stratospheric warming (SSW). The amplitudes of E4DW are centered at 50°S and 50 km with a maximum amplitude of ∼20 m/s. The enhanced E4DW significantly exceeds the climatological level and has the strongest amplitude in the Southern Hemisphere since 1980. Our results show that the E4DW is generated by the atmospheric instabilities via a double‐jet configuration of the zonal mean zonal winds. Our analysis further indicates that the special structure of the zonal mean zonal winds caused by the 2019 Antarctic SSW at the stratopause is responsible for the excitation of the record‐strong E4DW in 2019 in the Southern Hemisphere. |
| format | Article |
| id | doaj-art-dfabfc0df9ba4f9d86d51781e2370512 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-dfabfc0df9ba4f9d86d51781e23705122025-08-20T02:04:21ZengWileyGeophysical Research Letters0094-82761944-80072023-04-01507n/an/a10.1029/2022GL102704Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric WarmingJiahui Luo0Zheng Ma1Yun Gong2Shaodong Zhang3Qiao Xiao4Chunming Huang5Kaiming Huang6School of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaSchool of Electronic Information Wuhan University Wuhan ChinaAbstract Based on the zonal winds from the Modern‐Era Retrospective Analysis for Research and Applications, version 2 reanalysis data, we investigate the enhancement of an eastward propagating 4‐day wave (E4DW) during the 2019 Antarctic sudden stratospheric warming (SSW). The amplitudes of E4DW are centered at 50°S and 50 km with a maximum amplitude of ∼20 m/s. The enhanced E4DW significantly exceeds the climatological level and has the strongest amplitude in the Southern Hemisphere since 1980. Our results show that the E4DW is generated by the atmospheric instabilities via a double‐jet configuration of the zonal mean zonal winds. Our analysis further indicates that the special structure of the zonal mean zonal winds caused by the 2019 Antarctic SSW at the stratopause is responsible for the excitation of the record‐strong E4DW in 2019 in the Southern Hemisphere.https://doi.org/10.1029/2022GL102704 |
| spellingShingle | Jiahui Luo Zheng Ma Yun Gong Shaodong Zhang Qiao Xiao Chunming Huang Kaiming Huang Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming Geophysical Research Letters |
| title | Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming |
| title_full | Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming |
| title_fullStr | Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming |
| title_full_unstemmed | Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming |
| title_short | Record‐Strong Eastward Propagating 4‐Day Wave in the Southern Hemisphere Observed During the 2019 Antarctic Sudden Stratospheric Warming |
| title_sort | record strong eastward propagating 4 day wave in the southern hemisphere observed during the 2019 antarctic sudden stratospheric warming |
| url | https://doi.org/10.1029/2022GL102704 |
| work_keys_str_mv | AT jiahuiluo recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT zhengma recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT yungong recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT shaodongzhang recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT qiaoxiao recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT chunminghuang recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming AT kaiminghuang recordstrongeastwardpropagating4daywaveinthesouthernhemisphereobservedduringthe2019antarcticsuddenstratosphericwarming |