| SENSITIVE NUMERICAL SIMULATION AND ANALYSIS OF RAINSTORM USING NESTED WRF MODEL |
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| 作者姓名： | WANG Shu-chang HUANG Si-xun LI Yi |
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| 作者单位： | WANG Shu-chang，HUANG Si-xun，LI Yi Institute of Meteorology，PLA University of Science and Technology，Nanjing 211101，China |
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| 摘 要： | 1. INTRODUCTION In the field of meteorology, the numerical prediction of rainstorm is a recognized to be a difficult problem. Especially, the generation and development of rainstorm is closely related with the local terrain, physiognomy, and climatic para…
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| 关 键 词： | WRF 嵌套 数字模拟 中尺度分析 水流体动力学 |
| 收稿时间： | 2005-10-19 |
SENSITIVE NUMERICAL SIMULATION AND ANALYSIS OF RAINSTORM USING NESTED WRF MODEL |
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| WANG Shu-chang HUANG Si-xun LI Yi.SENSITIVE NUMERICAL SIMULATION AND ANALYSIS OF RAINSTORM USING NESTED WRF MODEL[J].Journal of Hydrodynamics,2006,18(5):578-586. |
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| Authors: | WANG Shu-chang HUANG Si-xun LI Yi |
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| Affiliation: | 1. Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, USA;2. Joint Institute for Regional Earth System Science and Engineering (JIFRESSE), UCLA, USA;3. Department of Earth and Atmospheric Science, University of Houston, USA;4. NOAA Earth System Research Laboratory (ESRL), Chemical Sciences Division, Boulder, CO, USA;5. Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA;1. Institute for the Environment, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA;2. Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA;3. U.S. Environmental Protection Agency, Office of Research and Development, Research Triangle Park, NC, USA;4. Aerodyne Research, Inc., Billerica, MA, USA;1. Civil Engineering Department, Indian Institute of Technology, Hauz Khas, New Delhi, 110 016, India;2. Centre for Environmental Studies, The Energy and Resources Institute, IHC Complex, Lodhi Road, New Delhi, 110 003, India;1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China;2. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA;3. Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China;4. Guangdong Provincial Environmental Monitoring Center, Guangzhou, China |
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| Abstract: | Nowadays, the nested grid model is widely used to increase the resolution of numerical model. An attempt to investigate the influence of the newly developed nesting technique of WRF model on the mesoscale numerical simulation of severe storm is described in this article. The results of sensitivity tests infer that the WRF model give more accurate and vivid prediction of severe storm with nesting scheme. As is shown in the tests, simulating value of the precipitation centers using nesting scheme are larger than those without using nesting scheme, which indicates that the simulating precipitation of nested storm is closer to the real rainfall. And there is obvious improvement of distribution of rain area and position of precipitation centers. According to the high resolution output data of the WRF model, deep and detailed analysis of characters of the mesoscale system that triggers the rainstorm is reported in this article, and the thermal and dynamical characters of this Meiyu front severe storm are also discussed. |
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| Keywords: | WRF nesting numerical simulation mesoscale analysis |
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