Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China
Abstract The mid‐high latitude intraseasonal oscillation (ISO) has remarkable impacts on the Northern Hemisphere. However, the interannual variance of the mid‐high latitude ISO and its underlying mechanism are rarely explored. Here, we find that the tropical stratospheric Quasi‐Biennial Oscillation...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2023GL106448 |
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| author | Xinrui Xie Jiye Wu Jing‐Jia Luo Jianxiang Xu Huiping Yan |
| author_facet | Xinrui Xie Jiye Wu Jing‐Jia Luo Jianxiang Xu Huiping Yan |
| author_sort | Xinrui Xie |
| collection | DOAJ |
| description | Abstract The mid‐high latitude intraseasonal oscillation (ISO) has remarkable impacts on the Northern Hemisphere. However, the interannual variance of the mid‐high latitude ISO and its underlying mechanism are rarely explored. Here, we find that the tropical stratospheric Quasi‐Biennial Oscillation (QBO) has notable impacts. A statistically significant contrast in the interannual variability of intraseasonal 2‐m temperature (T2m) over northern Eurasia is detected between the easterly (EQBO) and westerly (WQBO) QBO phase. The influence of the QBO could be attributed to the interactions of ISO perturbation and QBO‐related winter‐mean flow. Specifically, the ISO perturbation is more efficient in extracting kinetic and potential energy from the winter‐mean flow in EQBO. Additionally, the northern Eurasia ISO propagates southeastward and exert effects on China. Due to this, the subseasonal forecast system of NUIST (NUIST CFS1.1) displays higher skill in predicting the T2m in China during EQBO phase at 3, 4, and 5 pentads in advance. |
| format | Article |
| id | doaj-art-fb15b5ed831e474a9ece8a28f0a1669e |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-fb15b5ed831e474a9ece8a28f0a1669e2025-08-20T03:11:03ZengWileyGeophysical Research Letters0094-82761944-80072024-01-01512n/an/a10.1029/2023GL106448Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in ChinaXinrui Xie0Jiye Wu1Jing‐Jia Luo2Jianxiang Xu3Huiping Yan4Institute of Climate Application Research (ICAR)/CIC‐FEMD/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing ChinaInstitute of Climate Application Research (ICAR)/CIC‐FEMD/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing ChinaInstitute of Climate Application Research (ICAR)/CIC‐FEMD/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing ChinaInstitute of Climate Application Research (ICAR)/CIC‐FEMD/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing ChinaInstitute of Climate Application Research (ICAR)/CIC‐FEMD/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing ChinaAbstract The mid‐high latitude intraseasonal oscillation (ISO) has remarkable impacts on the Northern Hemisphere. However, the interannual variance of the mid‐high latitude ISO and its underlying mechanism are rarely explored. Here, we find that the tropical stratospheric Quasi‐Biennial Oscillation (QBO) has notable impacts. A statistically significant contrast in the interannual variability of intraseasonal 2‐m temperature (T2m) over northern Eurasia is detected between the easterly (EQBO) and westerly (WQBO) QBO phase. The influence of the QBO could be attributed to the interactions of ISO perturbation and QBO‐related winter‐mean flow. Specifically, the ISO perturbation is more efficient in extracting kinetic and potential energy from the winter‐mean flow in EQBO. Additionally, the northern Eurasia ISO propagates southeastward and exert effects on China. Due to this, the subseasonal forecast system of NUIST (NUIST CFS1.1) displays higher skill in predicting the T2m in China during EQBO phase at 3, 4, and 5 pentads in advance.https://doi.org/10.1029/2023GL106448 |
| spellingShingle | Xinrui Xie Jiye Wu Jing‐Jia Luo Jianxiang Xu Huiping Yan Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China Geophysical Research Letters |
| title | Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China |
| title_full | Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China |
| title_fullStr | Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China |
| title_full_unstemmed | Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China |
| title_short | Modulation of Quasi‐Biennial Oscillation on Wintertime Variability of Intraseasonal 2‐m Temperature Over Northern Eurasia and Its Potential Impact on Subseasonal Prediction in China |
| title_sort | modulation of quasi biennial oscillation on wintertime variability of intraseasonal 2 m temperature over northern eurasia and its potential impact on subseasonal prediction in china |
| url | https://doi.org/10.1029/2023GL106448 |
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