A CEOF-based method for measuring amplitude and phase properties of the QBO
Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study...
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| Autor*in: |
Xu, Wenwen [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Climate dynamics - Springer Berlin Heidelberg, 1986, 61(2022), 1-2 vom: 12. Dez., Seite 923-937 |
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| Übergeordnetes Werk: |
volume:61 ; year:2022 ; number:1-2 ; day:12 ; month:12 ; pages:923-937 |
| Links: |
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| DOI / URN: |
10.1007/s00382-022-06625-2 |
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OLC2143974264 |
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| 520 | |a Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. | ||
| 650 | 4 | |a QBO properties | |
| 650 | 4 | |a CEOF | |
| 650 | 4 | |a Vertical propagation | |
| 650 | 4 | |a Asymmetry and seasonality | |
| 700 | 1 | |a Ren, Hong-Li |4 aut | |
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10.1007/s00382-022-06625-2 doi (DE-627)OLC2143974264 (DE-He213)s00382-022-06625-2-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 16,13 ssgn Xu, Wenwen verfasserin aut A CEOF-based method for measuring amplitude and phase properties of the QBO 2022 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. QBO properties CEOF Vertical propagation Asymmetry and seasonality Ren, Hong-Li aut Enthalten in Climate dynamics Springer Berlin Heidelberg, 1986 61(2022), 1-2 vom: 12. Dez., Seite 923-937 (DE-627)129932728 (DE-600)382992-3 (DE-576)015479005 0930-7575 nnns volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 https://doi.org/10.1007/s00382-022-06625-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_62 GBV_ILN_154 GBV_ILN_2018 GBV_ILN_4277 AR 61 2022 1-2 12 12 923-937 |
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10.1007/s00382-022-06625-2 doi (DE-627)OLC2143974264 (DE-He213)s00382-022-06625-2-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 16,13 ssgn Xu, Wenwen verfasserin aut A CEOF-based method for measuring amplitude and phase properties of the QBO 2022 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. QBO properties CEOF Vertical propagation Asymmetry and seasonality Ren, Hong-Li aut Enthalten in Climate dynamics Springer Berlin Heidelberg, 1986 61(2022), 1-2 vom: 12. Dez., Seite 923-937 (DE-627)129932728 (DE-600)382992-3 (DE-576)015479005 0930-7575 nnns volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 https://doi.org/10.1007/s00382-022-06625-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_62 GBV_ILN_154 GBV_ILN_2018 GBV_ILN_4277 AR 61 2022 1-2 12 12 923-937 |
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10.1007/s00382-022-06625-2 doi (DE-627)OLC2143974264 (DE-He213)s00382-022-06625-2-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 16,13 ssgn Xu, Wenwen verfasserin aut A CEOF-based method for measuring amplitude and phase properties of the QBO 2022 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. QBO properties CEOF Vertical propagation Asymmetry and seasonality Ren, Hong-Li aut Enthalten in Climate dynamics Springer Berlin Heidelberg, 1986 61(2022), 1-2 vom: 12. Dez., Seite 923-937 (DE-627)129932728 (DE-600)382992-3 (DE-576)015479005 0930-7575 nnns volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 https://doi.org/10.1007/s00382-022-06625-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_62 GBV_ILN_154 GBV_ILN_2018 GBV_ILN_4277 AR 61 2022 1-2 12 12 923-937 |
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10.1007/s00382-022-06625-2 doi (DE-627)OLC2143974264 (DE-He213)s00382-022-06625-2-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 16,13 ssgn Xu, Wenwen verfasserin aut A CEOF-based method for measuring amplitude and phase properties of the QBO 2022 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. QBO properties CEOF Vertical propagation Asymmetry and seasonality Ren, Hong-Li aut Enthalten in Climate dynamics Springer Berlin Heidelberg, 1986 61(2022), 1-2 vom: 12. Dez., Seite 923-937 (DE-627)129932728 (DE-600)382992-3 (DE-576)015479005 0930-7575 nnns volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 https://doi.org/10.1007/s00382-022-06625-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_62 GBV_ILN_154 GBV_ILN_2018 GBV_ILN_4277 AR 61 2022 1-2 12 12 923-937 |
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10.1007/s00382-022-06625-2 doi (DE-627)OLC2143974264 (DE-He213)s00382-022-06625-2-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 16,13 ssgn Xu, Wenwen verfasserin aut A CEOF-based method for measuring amplitude and phase properties of the QBO 2022 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. QBO properties CEOF Vertical propagation Asymmetry and seasonality Ren, Hong-Li aut Enthalten in Climate dynamics Springer Berlin Heidelberg, 1986 61(2022), 1-2 vom: 12. Dez., Seite 923-937 (DE-627)129932728 (DE-600)382992-3 (DE-576)015479005 0930-7575 nnns volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 https://doi.org/10.1007/s00382-022-06625-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_62 GBV_ILN_154 GBV_ILN_2018 GBV_ILN_4277 AR 61 2022 1-2 12 12 923-937 |
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Enthalten in Climate dynamics 61(2022), 1-2 vom: 12. Dez., Seite 923-937 volume:61 year:2022 number:1-2 day:12 month:12 pages:923-937 |
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a ceof-based method for measuring amplitude and phase properties of the qbo |
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A CEOF-based method for measuring amplitude and phase properties of the QBO |
| abstract |
Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract The quasi-biennial oscillation (QBO) is an important climate phenomenon in the tropical stratosphere with impacts worldwide, and thus reasonably representing the QBO properties, with its vertical propagation considered, is the key to clearly understanding its fundamental effects. This study proposes a new method that the QBO spatio-temporal characteristics can be reasonably captured by the first complex empirical orthogonal function (CEOF) and its derived time series. With this method, alternate variations of the typical barotropic (easterly/westerly wind) and baroclinic (easterly/westerly wind shear) components in the QBO can be adequately reflected by decomposing the QBO downward propagation structure in terms of the CEOF-based diagnostics. The QBO properties (amplitude and downward propagation speed) have a clear phase asymmetry and are larger in the westerly downward propagating phase than the easterly one. They show the largest difference between the two shear phases. These properties also feature a clear seasonality and are larger in boreal spring–summer but smallest in winter, which is much truer for the baroclinic component of the QBO than the barotropic one. Compared to those existing QBO indices, the CEOF-derived index can provide the representative QBO stages, much closer to realistic values, and thus better obtain the stable typical spatial structure of the QBO, contributing to a unified phase division for various QBO stages. In terms of the CEOF-based phase division, the QBO shows a strong modulation on the Arctic Oscillation and Madden–Julian Oscillation activities. This study provides a useful tool for diagnosing the QBO and a beneficial addition to related QBO monitoring and prediction. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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