Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study
ABSTRACT In this study, potential impacts of the North Pacific subarctic frontal zone (SAFZ) variation, including its intensity variation and meridional shift, upon the subseasonally varying North Pacific storm track are investigated by using the 100‐year reanalysis data sets. Regression analysis in...
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crwiley:10.1002/joc.5429 2024-09-09T20:10:46+00:00 Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study Yao, Yao Zhong, Zhong Yang, Xiu‐Qun National Natural Science Foundation of China China Meteorological Administration 2018 http://dx.doi.org/10.1002/joc.5429 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5429 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5429 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 38, issue 5, page 2554-2564 ISSN 0899-8418 1097-0088 journal-article 2018 crwiley https://doi.org/10.1002/joc.5429 2024-06-18T04:16:49Z ABSTRACT In this study, potential impacts of the North Pacific subarctic frontal zone (SAFZ) variation, including its intensity variation and meridional shift, upon the subseasonally varying North Pacific storm track are investigated by using the 100‐year reanalysis data sets. Regression analysis indicates that the changes in the SAFZ intensity and meridional position have significant influence on the North Pacific storm track, which intensifies with the strengthening of the SAFZ and moves northwards following the northwards shift of the SAFZ. However, the storm‐track response pattern exhibits distinct differences from one calendar month to another. Specifically, the storm‐track response to the SAFZ intensity variation is strongest in February and March; while its response to the SAFZ meridional shift is most pronounced in November and December. However, the storm‐track response is relatively weak in January. Further analysis shows that the intensified (or northwards shifted) SAFZ would result in changes in the near‐surface baroclinicity and hence affects the storm track, while the weak storm‐track response in January is not the result of the anomalous near‐surface baroclinicity. The investigation of the local energetics reveals that changes in the baroclinic energy conversion (BCEC) associated with the SAFZ variation are consistent with the storm‐track anomalies, indicating that the BCEC plays a crucial role in modulating the subseasonal changes in the storm‐track response. In January, the weakened BCEC contributes to the reduced storm‐track response to the SAFZ variation. Article in Journal/Newspaper Subarctic Wiley Online Library Pacific International Journal of Climatology 38 5 2554 2564 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT In this study, potential impacts of the North Pacific subarctic frontal zone (SAFZ) variation, including its intensity variation and meridional shift, upon the subseasonally varying North Pacific storm track are investigated by using the 100‐year reanalysis data sets. Regression analysis indicates that the changes in the SAFZ intensity and meridional position have significant influence on the North Pacific storm track, which intensifies with the strengthening of the SAFZ and moves northwards following the northwards shift of the SAFZ. However, the storm‐track response pattern exhibits distinct differences from one calendar month to another. Specifically, the storm‐track response to the SAFZ intensity variation is strongest in February and March; while its response to the SAFZ meridional shift is most pronounced in November and December. However, the storm‐track response is relatively weak in January. Further analysis shows that the intensified (or northwards shifted) SAFZ would result in changes in the near‐surface baroclinicity and hence affects the storm track, while the weak storm‐track response in January is not the result of the anomalous near‐surface baroclinicity. The investigation of the local energetics reveals that changes in the baroclinic energy conversion (BCEC) associated with the SAFZ variation are consistent with the storm‐track anomalies, indicating that the BCEC plays a crucial role in modulating the subseasonal changes in the storm‐track response. In January, the weakened BCEC contributes to the reduced storm‐track response to the SAFZ variation. |
author2 |
National Natural Science Foundation of China China Meteorological Administration |
format |
Article in Journal/Newspaper |
author |
Yao, Yao Zhong, Zhong Yang, Xiu‐Qun |
spellingShingle |
Yao, Yao Zhong, Zhong Yang, Xiu‐Qun Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
author_facet |
Yao, Yao Zhong, Zhong Yang, Xiu‐Qun |
author_sort |
Yao, Yao |
title |
Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
title_short |
Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
title_full |
Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
title_fullStr |
Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
title_full_unstemmed |
Impacts of the subarctic frontal zone on the North Pacific storm track in the cold season: an observational study |
title_sort |
impacts of the subarctic frontal zone on the north pacific storm track in the cold season: an observational study |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/joc.5429 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.5429 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.5429 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
International Journal of Climatology volume 38, issue 5, page 2554-2564 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.5429 |
container_title |
International Journal of Climatology |
container_volume |
38 |
container_issue |
5 |
container_start_page |
2554 |
op_container_end_page |
2564 |
_version_ |
1809945208491606016 |