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首页> 外文期刊>International Journal of Environmental Research and Public Health >A Comparison of HWRF, ARW and NMM Models in Hurricane Katrina (2005) Simulation
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A Comparison of HWRF, ARW and NMM Models in Hurricane Katrina (2005) Simulation

机译：卡特里娜飓风（2005）模拟中的HWRF，ARW和NMM模型的比较

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The life cycle of Hurricane Katrina (2005) was simulated using three different modeling systems of Weather Research and Forecasting (WRF) mesoscale model. These are, HWRF (Hurricane WRF) designed specifically for hurricane studies and WRF model with two different dynamic cores as the Advanced Research WRF (ARW) model and the Non-hydrostatic Mesoscale Model (NMM). The WRF model was developed and sourced from National Center for Atmospheric Research (NCAR), incorporating the advances in atmospheric simulation system suitable for a broad range of applications. The HWRF modeling system was developed at the National Centers for Environmental Prediction (NCEP) based on the NMM dynamic core and the physical parameterization schemes specially designed for tropics. A case study of Hurricane Katrina was chosen as it is one of the intense hurricanes that caused severe destruction along the Gulf Coast from central Florida to Texas. ARW, NMM and HWRF models were designed to have two-way interactive nested domains with 27 and 9 km resolutions. The three different models used in this study were integrated for three days starting from 0000 UTC of 27 August 2005 to capture the landfall of hurricane Katrina on 29 August. The initial and time varying lateral boundary conditions were taken from NCEP global FNL (final analysis) data available at 1 degree resolution for ARW and NMM models and from NCEP GFS data at 0.5 degree resolution for HWRF model. The results show that the models simulated the intensification of Hurricane Katrina and the landfall on 29 August 2005 agreeing with the observations. Results from these experiments highlight the superior performance of HWRF model over ARW and NMM models in predicting the track and intensification of Hurricane Katrina.
机译：卡特里娜飓风（2005）的生命周期使用天气研究和预报（WRF）中尺度模型的三种不同建模系统进行了模拟。它们是专门为飓风研究而设计的HWRF（飓风WRF）和具有两个不同动态核心的WRF模型，分别是Advanced Research WRF（ARW）模型和非静水中尺度模型（NMM）。 WRF模型是从美国国家大气研究中心（NCAR）开发并获得的，它结合了适用于广泛应用的大气模拟系统的进步。 HWRF建模系统是在国家环境预测中心（NCEP）的基础上，基于NMM动态核心和专门为热带地区设计的物理参数化方案开发的。选择了卡特里娜飓风的案例研究，因为它是造成从佛罗里达州中部到德克萨斯州的墨西哥湾沿岸造成严重破坏的强烈飓风之一。 ARW，NMM和HWRF模型设计为具有27和9 km分辨率的双向交互式嵌套域。从2005年8月27日的0000 UTC开始，为期三天对本研究中使用的三种不同模型进行了整合，以捕获8月29日卡特里娜飓风的登陆。初始和随时间变化的横向边界条件取自ARW和NMM模型的1度分辨率的NCEP全局FNL（最终分析）数据，以及HWRF模型的0.5度分辨率的NCEP GFS数据。结果表明，这些模型模拟了卡特里娜飓风的加剧和2005年8月29日的登陆，与观察结果一致。这些实验的结果突显了HWRF模型在预测卡特里娜飓风的轨迹和强度方面优于ARW和NMM模型。

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