| 农林复合带一维非静力大气边界层模式及其模拟分析 |
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| 引用本文： | 夏俊杰,徐玉貌,倪允琪.农林复合带一维非静力大气边界层模式及其模拟分析[J].南京气象学院学报,2003,26(2):181-189. |
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| 作者姓名： | 夏俊杰 徐玉貌 倪允琪 |
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| 作者单位： | 南京大学,大气科学系,江苏,南京,210093 |
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| 基金项目： | 我国重大气候和天气灾害的形成机理和预测理论研究项目 ( G19980 4 0 90 0 ) |
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| 摘 要： | 建立了一个农林复合带地区一维非静力大气边界层能量闭合模式，对1000m以下的大气边界层内的风、温、湿作了24h的预报，并对下垫面3种不同参数化方案(农作物、森林、无植被)的输出结果与实测值进行了分析和比较；同时通过敏感性试验，突出比较了农作物和森林下垫面对大气边界层垂直流场，湍流垂直交换和湍能的影响。结果表明，本模式能改善边界层风速、位温和湿度预报的模拟效果，下垫面植被对边界层气象要素大小和分布有显著的作用，对湍能垂直分布有一定影响。
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| 关 键 词： | 农林复合带 大气边界层 下垫面 农作物 森林 风速 湿度预报 植被 湍能 垂直分布 |
| 文章编号： | 1000-2022(2003)02-0181-09 |
| 修稿时间： | 2002年6月17日 |
One-Dimensional Non-hydrostatic Model of Atmospheric Boundary Layer for Agro-forestry Zone and Its Simulation Analysis |
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| XIA Jun jie,XU Yu mao,NI Yun qi.One-Dimensional Non-hydrostatic Model of Atmospheric Boundary Layer for Agro-forestry Zone and Its Simulation Analysis[J].Journal of Nanjing Institute of Meteorology,2003,26(2):181-189. |
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| Authors: | XIA Jun jie XU Yu mao NI Yun qi |
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| Abstract: | A one dimensional,non hydrostatic atmospheric boundary layer model for agro forestry zone is established in this paper in terms of turbulent kinetic energy(TKE) closure,and the forecast of 24 hour wind speed,temperature and humidity in the atmospheric boundary layer(ABL) bellow 1000m altitude is made.While,the output results with different parameterization schemes for three kinds of underlying surface(crop,forest and non vegetation) are analyzed and compared with the observational data,especially the effects of the crop and forest on the vertical distributions of airflow,turbulent exchange and turbulent energy above the canopy by sensitivity test.The results show that this model can improve the simulation effect of forecasting wind speed,potential temperature and humidity in ABL,and that the plant of the underlying surface exerts a remarkable influence on meteorological elements in ABL but a little bit effect to turbulent energy. |
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| Keywords: | agro forestry zone eco boundary layer non hydrostatic boundary layer forecast model TKE closure |
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