| 报告题名: | Terrain-forced Wind and Turbulence and Optimization of Local Domains and Grids for Terrain-induced Turbulence Forecast |
| 作者: | Sørli, Karstein; Rasheed, Adil
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| 出版年: | 2011
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| 发表日期: | 2011
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| 国家: | 挪威
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| 语种: | 英语
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| 中文主题词: | 湍流/气流
; 地形学
; 湍流
; 密度
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| 主题词: | TURBULENCE
; TOPOGRAPHY
; DENSITY
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| 英文摘要: | A study of mountain-forced wind, wind-shear and turbulence was conducted in order to reveal general characteristics of terrain-induced turbulence nearby airports in mountainous areas. Special studies of the topography close to a number of Norwegian airports that currently receive hourly forecasts of terrain-induced turbulence were also performed. It was found that there is a potential for improving efficiency and robustness as well as accuracy of the micro-scale code at the end of the nested set of numerical weather prediction codes that each resolves different scales and which is used in the forecasting mentioned. The optimizing was done by tuning the shape, size and orientation of the local regions as well as the quality of the spatial grid within the regions.
The continuous increase of computational power opens for utilizing finer and larger forecast grids for airport regions with topography that are not resolved with the present grids. This gives promise to using these finer micro-scale grids in operational forecasting in near future. A rough estimate of the present realistic and operational grids is a doubling of grid density horizontally as well as increasing grid density vertically by a factor 1.5 as compared with existing numbers.
The selected airports were investigated in order to deduce general as well as specific guidelines regarding optimum size, shape and orientation of the micro-scale forecast region relative to the local topography nearby the airports. Details for the selected airports are found in the conclusion section of the report.
Oppdragsgiver: Avinor AS |
| URL: | https://brage.bibsys.no/xmlui/bitstream/handle/11250/2410404/SINTEF%2bA19928.pdf?sequence=3&isAllowed=y
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/28705
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| SINTEF+A19928.pdf（12895KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Sørli, Karstein,Rasheed, Adil. Terrain-forced Wind and Turbulence and Optimization of Local Domains and Grids for Terrain-induced Turbulence Forecast. 2011-01-01.
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