2种边界层参数化方案对1013号超强台风"鲇鱼"数值模拟的敏感性研究
Sensitivity Research of Two Planetary Boundary Layer Parameterization Schemes in Numerical Simulation of Super Typhoon 1013 "Megi"
胡昊1
作者信息
- 1. 解放军理工大学气象海洋学院,江苏南京 211101
- 折叠
摘要
利用中国台湾地区"侵台台风之飞机侦察及投落送观测实验(DOTSTAR)"探空数据与WRF模式(3.8版本),针对1013号超强台风"鲇鱼"开展了边界层参数化方案的数值模拟敏感性研究.结果表明,非局地YSU方案在台风强度、路径、螺旋雨带、内核尺度以及台风外围位温、水汽混合比、风向这些方面的模拟效果优于局地MYNN2方案;但在风速的模拟上,YSU方案与MYNN2方案没有明显的优劣之分.
Abstract
Using the dropsonde data from Dropwindsonde Observations for Typhoon Surveillance near the Taiwan Region (DOTSTAR) and the WRF model (version 3.8), sensitivity research of planetary boundary layer parameterization schemes in numerical simulation of super typhoon "Megi" was carried out.The result showed that the non-local YSU scheme was more capable of simulating typhoon intensity, track, spiral rain band, inner-core size and typhoon periphery structure of potential temperature, water vapor mixing ratio, wind direction than the local MYNN2 scheme.However, there was no obvious difference between YSU and MYNN2 in the simulation of wind speed.
关键词
超强台风"鲇鱼"/数值模拟/边界层参数化方案/敏感性Key words
Super typhoon"Megi"/Numerical simulation/Planetary boundary layer parameterization scheme/Sensitivity引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
万方数据