Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020
Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equati...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wang, Tianju [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 |
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| Übergeordnetes Werk: |
Enthalten in: Theoretical and applied climatology - Wien [u.a.] : Springer, 1948, 149(2022), 1-2 vom: 13. Mai, Seite 773-786 |
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| Übergeordnetes Werk: |
volume:149 ; year:2022 ; number:1-2 ; day:13 ; month:05 ; pages:773-786 |
| Links: |
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| DOI / URN: |
10.1007/s00704-022-04075-8 |
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SPR047371781 |
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| 520 | |a Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. | ||
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10.1007/s00704-022-04075-8 doi (DE-627)SPR047371781 (SPR)s00704-022-04075-8-e DE-627 ger DE-627 rakwb eng Wang, Tianju verfasserin aut Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. Zhong, Zhong (orcid)0000-0002-6145-2698 aut Sun, Yuan aut Hu, Yijia aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 149(2022), 1-2 vom: 13. Mai, Seite 773-786 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:149 year:2022 number:1-2 day:13 month:05 pages:773-786 https://dx.doi.org/10.1007/s00704-022-04075-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 149 2022 1-2 13 05 773-786 |
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10.1007/s00704-022-04075-8 doi (DE-627)SPR047371781 (SPR)s00704-022-04075-8-e DE-627 ger DE-627 rakwb eng Wang, Tianju verfasserin aut Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. Zhong, Zhong (orcid)0000-0002-6145-2698 aut Sun, Yuan aut Hu, Yijia aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 149(2022), 1-2 vom: 13. Mai, Seite 773-786 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:149 year:2022 number:1-2 day:13 month:05 pages:773-786 https://dx.doi.org/10.1007/s00704-022-04075-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 149 2022 1-2 13 05 773-786 |
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10.1007/s00704-022-04075-8 doi (DE-627)SPR047371781 (SPR)s00704-022-04075-8-e DE-627 ger DE-627 rakwb eng Wang, Tianju verfasserin aut Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. Zhong, Zhong (orcid)0000-0002-6145-2698 aut Sun, Yuan aut Hu, Yijia aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 149(2022), 1-2 vom: 13. Mai, Seite 773-786 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:149 year:2022 number:1-2 day:13 month:05 pages:773-786 https://dx.doi.org/10.1007/s00704-022-04075-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 149 2022 1-2 13 05 773-786 |
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10.1007/s00704-022-04075-8 doi (DE-627)SPR047371781 (SPR)s00704-022-04075-8-e DE-627 ger DE-627 rakwb eng Wang, Tianju verfasserin aut Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. Zhong, Zhong (orcid)0000-0002-6145-2698 aut Sun, Yuan aut Hu, Yijia aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 149(2022), 1-2 vom: 13. Mai, Seite 773-786 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:149 year:2022 number:1-2 day:13 month:05 pages:773-786 https://dx.doi.org/10.1007/s00704-022-04075-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 149 2022 1-2 13 05 773-786 |
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10.1007/s00704-022-04075-8 doi (DE-627)SPR047371781 (SPR)s00704-022-04075-8-e DE-627 ger DE-627 rakwb eng Wang, Tianju verfasserin aut Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. Zhong, Zhong (orcid)0000-0002-6145-2698 aut Sun, Yuan aut Hu, Yijia aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 149(2022), 1-2 vom: 13. Mai, Seite 773-786 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:149 year:2022 number:1-2 day:13 month:05 pages:773-786 https://dx.doi.org/10.1007/s00704-022-04075-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 149 2022 1-2 13 05 773-786 |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR047371781</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230507213325.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">220623s2022 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00704-022-04075-8</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR047371781</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s00704-022-04075-8-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Wang, Tianju</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhong, Zhong</subfield><subfield code="0">(orcid)0000-0002-6145-2698</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sun, Yuan</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hu, Yijia</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Theoretical and applied climatology</subfield><subfield code="d">Wien [u.a.] : Springer, 1948</subfield><subfield code="g">149(2022), 1-2 vom: 13. 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characteristics and mechanisms study of abnormal meridional movement of the western pacific subtropical high in july 2020 |
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Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 |
| abstract |
Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 |
| abstractGer |
Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 |
| abstract_unstemmed |
Abstract The climate in China is extremely abnormal in July 2020, which is largely attributed to the anomalous activities of the Western Pacific Subtropical High (WPSH). In the present study, statistical analysis and diagnostic calculation of individual terms of the complete form of vorticity equation are conducted to investigate features of meridional movement of WPSH in July 2020, and the mechanism for the anomalous meridional movement of the WPSH is also explored. Results indicate that in July 2020, the western segment of the WPSH ridge line persistently remained to the south of its climatological position, especially in the lower troposphere. Meanwhile, the eastern segment of the ridge line continuously stayed to the north of its normal position. Such a configuration leads to a large meridional span of the WPSH ridge line and is directly responsible for the super long Meiyu season in eastern China in the summer of 2020. The persistent southward shift of the WPSH ridge line in its western segment is attributed to the maintenance of strong positive vorticity anomalies to the north of the WPSH ridge line. Whereas the abnormally frequent southward invasion of cold air and the activities of troughs in the mid- and high-latitude regions are the main reasons for the maintenance of the vorticity anomalies to the north of the WPSH ridge line. In addition, the anomalously southward WPSH combined with the Indian ocean SST anomalies inhibited the development of tropical convection in the South China Sea—Philippines, which subsequently weakened the vorticity anomalies to the south of the WPSH ridge line and made the P-J teleconnection pattern exhibiting in abnormally negative phase, and resulting in anomalous cyclonic circulation and negative geopotential height developed in the middle and lower troposphere over southern Japan, which further caused the WPSH centroid locating southward and restricted the northward movement of the WPSH. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022 |
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Characteristics and mechanisms study of abnormal meridional movement of the Western Pacific Subtropical High in July 2020 |
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Zhong, Zhong Sun, Yuan Hu, Yijia |
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| score |
7.3999777 |