Interaction of Typhoon Shanshan (2006) with the Midlatitude Trough from both Adjoint-Derived Sensitivity Steering Vector and Potential Vorticity Perspectives.
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| Title: | Interaction of Typhoon Shanshan (2006) with the Midlatitude Trough from both Adjoint-Derived Sensitivity Steering Vector and Potential Vorticity Perspectives. |
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| Authors: | Chun-Chieh Wu1 cwu@typhoon.as.ntu.edu.tw, Shin-Gan Chen1, Jan-Huey Chen1, Kun-Hsuan Chou1, Po-Hsiung Lin1 |
| Source: | Monthly Weather Review. Mar2009, Vol. 137 Issue 3, p852-862. 11p. 1 Chart, 3 Graphs, 6 Maps. |
| Subjects: | Typhoons, Computational steering (Computer science), Vector analysis, Vortex motion, Weather forecasting, Climatology |
| Abstract: | Targeted observation is one of the most important research and forecasting issues for improving tropical cyclone predictability. A new parameter [i.e., the adjoint-derived sensitivity steering vector (ADSSV)] has been proposed and adopted as one of the targeted observing strategies in the Dropwindsonde Observations for Typhoon Surveillance near the Taiwan Region (DOTSTAR). The ADSSV identifies the sensitive areas at the observing time to the steering flow at the verifying time through the adjoint calculation. In this study, the ADSSV is calculated from the nonlinear forecast model of the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5) and its adjoint to interpret the dynamical processes in the interaction between Typhoon Shanshan (2006) and the midlatitude trough. The ADSSV results imply that high-sensitivity regions affecting the motion of Typhoon Shanshan are located at the edge of the subtropical high and the 500-hPa midlatitude trough over northern central China. These ADSSV signals are in very good agreement with the quantitative evaluation based on the potential vorticity (PV) diagnosis. The vertical structure of the ADSSV is also shown for more physical insights into the typhoon–trough interaction. The maximum ADSSV occurs at 800–500 hPa to the southeast of Shanshan (associated with the subtropical high), while distinct ADSSV signals are located upstream of the storm center at about 500–300 hPa (associated with the mid- to upper-tropospheric midlatitude trough). Overall, it is demonstrated that the ADSSV features can well capture the signal of the large-scale trough feature affecting the motion of Shanshan, which can also be well validated from the PV analysis. [ABSTRACT FROM AUTHOR] |
| Copyright of Monthly Weather Review is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 38016317 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Interaction of Typhoon Shanshan (2006) with the Midlatitude Trough from both Adjoint-Derived Sensitivity Steering Vector and Potential Vorticity Perspectives. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chun-Chieh+Wu%22">Chun-Chieh Wu</searchLink><relatesTo>1</relatesTo><i> cwu@typhoon.as.ntu.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Shin-Gan+Chen%22">Shin-Gan Chen</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jan-Huey+Chen%22">Jan-Huey Chen</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kun-Hsuan+Chou%22">Kun-Hsuan Chou</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Po-Hsiung+Lin%22">Po-Hsiung Lin</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Monthly+Weather+Review%22">Monthly Weather Review</searchLink>. Mar2009, Vol. 137 Issue 3, p852-862. 11p. 1 Chart, 3 Graphs, 6 Maps. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Typhoons%22">Typhoons</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+steering+%28Computer+science%29%22">Computational steering (Computer science)</searchLink><br /><searchLink fieldCode="DE" term="%22Vector+analysis%22">Vector analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Vortex+motion%22">Vortex motion</searchLink><br /><searchLink fieldCode="DE" term="%22Weather+forecasting%22">Weather forecasting</searchLink><br /><searchLink fieldCode="DE" term="%22Climatology%22">Climatology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Targeted observation is one of the most important research and forecasting issues for improving tropical cyclone predictability. A new parameter [i.e., the adjoint-derived sensitivity steering vector (ADSSV)] has been proposed and adopted as one of the targeted observing strategies in the Dropwindsonde Observations for Typhoon Surveillance near the Taiwan Region (DOTSTAR). The ADSSV identifies the sensitive areas at the observing time to the steering flow at the verifying time through the adjoint calculation. In this study, the ADSSV is calculated from the nonlinear forecast model of the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5) and its adjoint to interpret the dynamical processes in the interaction between Typhoon Shanshan (2006) and the midlatitude trough. The ADSSV results imply that high-sensitivity regions affecting the motion of Typhoon Shanshan are located at the edge of the subtropical high and the 500-hPa midlatitude trough over northern central China. These ADSSV signals are in very good agreement with the quantitative evaluation based on the potential vorticity (PV) diagnosis. The vertical structure of the ADSSV is also shown for more physical insights into the typhoon–trough interaction. The maximum ADSSV occurs at 800–500 hPa to the southeast of Shanshan (associated with the subtropical high), while distinct ADSSV signals are located upstream of the storm center at about 500–300 hPa (associated with the mid- to upper-tropospheric midlatitude trough). Overall, it is demonstrated that the ADSSV features can well capture the signal of the large-scale trough feature affecting the motion of Shanshan, which can also be well validated from the PV analysis. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Monthly Weather Review is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1175/2008MWR2585.1 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 852 Subjects: – SubjectFull: Typhoons Type: general – SubjectFull: Computational steering (Computer science) Type: general – SubjectFull: Vector analysis Type: general – SubjectFull: Vortex motion Type: general – SubjectFull: Weather forecasting Type: general – SubjectFull: Climatology Type: general Titles: – TitleFull: Interaction of Typhoon Shanshan (2006) with the Midlatitude Trough from both Adjoint-Derived Sensitivity Steering Vector and Potential Vorticity Perspectives. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chun-Chieh Wu – PersonEntity: Name: NameFull: Shin-Gan Chen – PersonEntity: Name: NameFull: Jan-Huey Chen – PersonEntity: Name: NameFull: Kun-Hsuan Chou – PersonEntity: Name: NameFull: Po-Hsiung Lin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 00270644 Numbering: – Type: volume Value: 137 – Type: issue Value: 3 Titles: – TitleFull: Monthly Weather Review Type: main |
| ResultId | 1 |
