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You searched for +publisher:"University of Oklahoma" +contributor:("Droegemeier, Kelvin||Gao, Jidong"). One record found.

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University of Oklahoma

1. Ge, Guoqing. ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS.

Degree: PhD, 2011, University of Oklahoma

To help boost dynamic consistency among model variables, the storm-scale diagnostic pressure equation is incorporated into the storm-scale 3DVAR cost function in the form of a weak constraint. The impact of the constraint has been examined by applying it to case studies of one idealized tornadic supercell thunderstorm and two real-world tornadic supercell thunderstorms. It is demonstrated in the idealized case study that at single analysis step, the use of the constraint can help slightly improve the analysis of wind fields and pressure field. After a given period of intermittent data assimilation, the use of the constraint can evidently improve the quality of the data assimilation results. For the 8 May 2003 OKC tornadic supercell thunderstorm case, it is shown that the use of the constraint help improve the forecast in term of the general evolution and the mesocyclone rotation of the major tornadic supercell thunderstorm. For the 5 May 2007 Greensburg tornadic supercell thunderstorm case, two different assimilation configurations are introduced to examine the impact of the constraint under different situations. It is shown that assimilating wind data alone produces reasonable forecast and the use of the diagnostic pressure equation constraint evidently improve the forecast. When assimilating reflectivity data in addition to wind data, the impact of the constraint is also positive. Overall, it is demonstrated that the constraint can improve the quality of radar data assimilation and the subsequent forecast. Advisors/Committee Members: Droegemeier, Kelvin||Gao, Jidong (advisor).

Subjects/Keywords: Thunderstorm forecasting; Weather forecasting; Tornadoes; Doppler radar

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Ge, G. (2011). ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/319176

Chicago Manual of Style (16th Edition):

Ge, Guoqing. “ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS.” 2011. Doctoral Dissertation, University of Oklahoma. Accessed November 27, 2020. http://hdl.handle.net/11244/319176.

MLA Handbook (7th Edition):

Ge, Guoqing. “ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS.” 2011. Web. 27 Nov 2020.

Vancouver:

Ge G. ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS. [Internet] [Doctoral dissertation]. University of Oklahoma; 2011. [cited 2020 Nov 27]. Available from: http://hdl.handle.net/11244/319176.

Council of Science Editors:

Ge G. ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS. [Doctoral Dissertation]. University of Oklahoma; 2011. Available from: http://hdl.handle.net/11244/319176

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