Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation
The dynamic effects of three-dimensional atmospheric circulation patterns are critical for regulating both regional and global climates. By using the three-pattern decomposition of global atmospheric circulation (3P-DGAC), this study recognizes the interdecadal changes of three-dimensional atmospher...
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IOP Publishing
2025-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/adad86 |
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| author | Jianjun Peng Shujuan Hu Ruiqiang Ding Deqian Li Jingjing Zhang |
| author_facet | Jianjun Peng Shujuan Hu Ruiqiang Ding Deqian Li Jingjing Zhang |
| author_sort | Jianjun Peng |
| collection | DOAJ |
| description | The dynamic effects of three-dimensional atmospheric circulation patterns are critical for regulating both regional and global climates. By using the three-pattern decomposition of global atmospheric circulation (3P-DGAC), this study recognizes the interdecadal changes of three-dimensional atmospheric circulation patterns associated with summer temperature anomalies in the middle and lower reaches of Yangtze River (MLRYR), and further demonstrates that these related changes of atmospheric circulation patterns are modulated by the Interdecadal Pacific Oscillation (IPO). During the positive phase of the IPO, the three-dimensional atmospheric circulation patterns are characterized by the anticyclonic high at the middle and upper troposphere, and anomalous downdrafts along local meridional circulation near MLRYR. Then, in the negative phase of the IPO, alongside the aforementioned atmospheric circulation patterns, there are anomalous downdrafts along the local zonal circulation at the Eastern Tibetan Plateau (ETP). Through statistical and dynamical analysis, the emergence of local zonal circulation is attributed to the influences of positive sea surface temperature anomalies in North Atlantic during the negative phase of the IPO, which propagate to East Asia through intensified jet stream waviness. The findings of this study establish a synchronous linkage between ETP climate and downstream regions, offering significant implications for enhancing seasonal climate forecasting in the future. |
| format | Article |
| id | doaj-art-ab78ef5d63754210ab4b2f5de23020be |
| institution | Kabale University |
| issn | 1748-9326 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj-art-ab78ef5d63754210ab4b2f5de23020be2025-02-04T08:36:35ZengIOP PublishingEnvironmental Research Letters1748-93262025-01-0120202405110.1088/1748-9326/adad86Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific OscillationJianjun Peng0Shujuan Hu1https://orcid.org/0000-0003-1756-434XRuiqiang Ding2https://orcid.org/0000-0003-4139-3843Deqian Li3Jingjing Zhang4Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University , Beijing, People’s Republic of China; Key Laboratory of Environmental Change and Natural Disasters of Chinese Ministry of Education, Beijing Normal University , Beijing, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaThe dynamic effects of three-dimensional atmospheric circulation patterns are critical for regulating both regional and global climates. By using the three-pattern decomposition of global atmospheric circulation (3P-DGAC), this study recognizes the interdecadal changes of three-dimensional atmospheric circulation patterns associated with summer temperature anomalies in the middle and lower reaches of Yangtze River (MLRYR), and further demonstrates that these related changes of atmospheric circulation patterns are modulated by the Interdecadal Pacific Oscillation (IPO). During the positive phase of the IPO, the three-dimensional atmospheric circulation patterns are characterized by the anticyclonic high at the middle and upper troposphere, and anomalous downdrafts along local meridional circulation near MLRYR. Then, in the negative phase of the IPO, alongside the aforementioned atmospheric circulation patterns, there are anomalous downdrafts along the local zonal circulation at the Eastern Tibetan Plateau (ETP). Through statistical and dynamical analysis, the emergence of local zonal circulation is attributed to the influences of positive sea surface temperature anomalies in North Atlantic during the negative phase of the IPO, which propagate to East Asia through intensified jet stream waviness. The findings of this study establish a synchronous linkage between ETP climate and downstream regions, offering significant implications for enhancing seasonal climate forecasting in the future.https://doi.org/10.1088/1748-9326/adad86middle and lower reaches of Yangtze Riverinterdecadal Pacific Oscillationthree-dimensional atmospheric circulation patternsatmospheric teleconnectioninterdecadal variability |
| spellingShingle | Jianjun Peng Shujuan Hu Ruiqiang Ding Deqian Li Jingjing Zhang Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation Environmental Research Letters middle and lower reaches of Yangtze River interdecadal Pacific Oscillation three-dimensional atmospheric circulation patterns atmospheric teleconnection interdecadal variability |
| title | Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation |
| title_full | Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation |
| title_fullStr | Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation |
| title_full_unstemmed | Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation |
| title_short | Interdecadal changes in three-dimensional atmospheric circulation patterns related to summer temperature variability in Eastern China modulated by the interdecadal Pacific Oscillation |
| title_sort | interdecadal changes in three dimensional atmospheric circulation patterns related to summer temperature variability in eastern china modulated by the interdecadal pacific oscillation |
| topic | middle and lower reaches of Yangtze River interdecadal Pacific Oscillation three-dimensional atmospheric circulation patterns atmospheric teleconnection interdecadal variability |
| url | https://doi.org/10.1088/1748-9326/adad86 |
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