| Application of a Shape-Preserving Advection Scheme to the Moisture Equation in an E-grid Regional Forecast Model |
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| 作者姓名： | Yu Rucong |
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| 作者单位： | LASG，Institute of Atmospheric Physics，Chinese Academy of Sciences，Beijing 100080 |
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| 摘 要： | This paper presents a methodology which is very useful to design shape-preserving advection finite difference scheme on general E-grid horizontal arrangement of variables through introducing a two-step shape-preserving positive definite advection scheme in the moisture equation of the LASG-REM (LASG regional E-grid eta-coordinate forecast model). By trial-forecasting six local heavy raincases, the efficiency of the shape-preserving advection scheme in practical application has been examined. The LASG-REM with the shape-preserving advection scheme has a good forecasting ability for local precipitation.
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| 收稿时间： | 9 April 1994 |
Application of a shape-preserving advection scheme to the moisture equation in an E-grid regional forecast model |
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| Yu Rucong.Application of a Shape-Preserving Advection Scheme to the Moisture Equation in an E-grid Regional Forecast Model[J].Advances in Atmospheric Sciences,1995,12(1):13-19. |
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| Authors: | Yu Rucong |
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| Affiliation: | LASG,InstituteofAtmosphericPhysics,ChineseAcademyofSciences,Beijing100080 |
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| Abstract: | This paper presents a methodology which is very useful to design shape-preserving advection finite difference scheme on general E-grid horizontal arrangement of variables through introducing a two-step shape-preserving positive definite advection scheme in the moisture equation of the LASG-REM (LASG regional E-grid eta-coordinate forecast model). By trial-forecasting six local heavy raincases, the efficiency of the shape-preserving advection scheme in practical application has been examined. The LASG-REM with the shape-preserving advection scheme has a good forecasting ability for local precipitation. |
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| Keywords: | Eta-coordinate E-grid Shape-preserving advection scheme |
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