Spatiotemporal differences in the interannual variability of Baiu frontal activity in June
Abstract The Baiu frontal activity (BFA) clearly shows spatiotemporal differences in its interannual variability. This work examines the physical mechanisms behind these differences. On interannual time scales, the Baiu front can be divided into three subregions: (1) the western Baiu (WB), (2) the c...
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crwiley:10.1002/joc.2058 2024-06-02T08:11:27+00:00 Spatiotemporal differences in the interannual variability of Baiu frontal activity in June Yamaura, Tsuyoshi Tomita, Tomohiko Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology 2010 http://dx.doi.org/10.1002/joc.2058 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.2058 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.2058 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 31, issue 1, page 57-71 ISSN 0899-8418 1097-0088 journal-article 2010 crwiley https://doi.org/10.1002/joc.2058 2024-05-03T10:57:17Z Abstract The Baiu frontal activity (BFA) clearly shows spatiotemporal differences in its interannual variability. This work examines the physical mechanisms behind these differences. On interannual time scales, the Baiu front can be divided into three subregions: (1) the western Baiu (WB), (2) the central Baiu (CB), and (3) the eastern Baiu (EB). Time series analysis revealed that the dominant periods in these three subregions are long eastward periods of approximately 2 years in the WB, 4 years in the CB, and 6 years in the EB. The biennial oscillation of the Asian monsoon controls the interannual variation in the WB through specific meridional circulation in the western North Pacific, whereas the El Niño/Southern Oscillation forces the interannual variation in the CB through the Pacific–East Asian teleconnection. The interannual variation in the EB is controlled by mid‐latitude atmospheric circulations, not by effects from the Tropics. The summertime North Atlantic Oscillation (SNAO) with a 6‐year period excites the stationary Rossby waves, the energies of which reach Japan through the strong upper tropospheric westerlies over Eurasia. Geopotential height anomalies then appear around Japan with an equivalent barotropic structure that modifies the precipitation in the EB. Copyright © 2009 Royal Meteorological Society Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Pacific International Journal of Climatology 31 1 57 71 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract The Baiu frontal activity (BFA) clearly shows spatiotemporal differences in its interannual variability. This work examines the physical mechanisms behind these differences. On interannual time scales, the Baiu front can be divided into three subregions: (1) the western Baiu (WB), (2) the central Baiu (CB), and (3) the eastern Baiu (EB). Time series analysis revealed that the dominant periods in these three subregions are long eastward periods of approximately 2 years in the WB, 4 years in the CB, and 6 years in the EB. The biennial oscillation of the Asian monsoon controls the interannual variation in the WB through specific meridional circulation in the western North Pacific, whereas the El Niño/Southern Oscillation forces the interannual variation in the CB through the Pacific–East Asian teleconnection. The interannual variation in the EB is controlled by mid‐latitude atmospheric circulations, not by effects from the Tropics. The summertime North Atlantic Oscillation (SNAO) with a 6‐year period excites the stationary Rossby waves, the energies of which reach Japan through the strong upper tropospheric westerlies over Eurasia. Geopotential height anomalies then appear around Japan with an equivalent barotropic structure that modifies the precipitation in the EB. Copyright © 2009 Royal Meteorological Society |
author2 |
Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology |
format |
Article in Journal/Newspaper |
author |
Yamaura, Tsuyoshi Tomita, Tomohiko |
spellingShingle |
Yamaura, Tsuyoshi Tomita, Tomohiko Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
author_facet |
Yamaura, Tsuyoshi Tomita, Tomohiko |
author_sort |
Yamaura, Tsuyoshi |
title |
Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
title_short |
Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
title_full |
Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
title_fullStr |
Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
title_full_unstemmed |
Spatiotemporal differences in the interannual variability of Baiu frontal activity in June |
title_sort |
spatiotemporal differences in the interannual variability of baiu frontal activity in june |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/joc.2058 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.2058 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.2058 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology volume 31, issue 1, page 57-71 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.2058 |
container_title |
International Journal of Climatology |
container_volume |
31 |
container_issue |
1 |
container_start_page |
57 |
op_container_end_page |
71 |
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1800757603006939136 |