摘要
介绍了针对国内有毒气体泄漏等突发性大气中污染物扩散问题建立的区域精细大气环境应急响应数值预报业务系统。该系统基于污染扩散模式HYSPLIT_4,利用中尺度模式WRF为其提供气象场,对污染扩散的路径和浓度以及地面沉降进行计算,系统后端开发了基于GIS的产品制作平台对模式产品进行叠加地理信息的处理。为实现快速应急响应的功能,模式业务系统始终处于热准备状态,并可在接到指令后迅速完成产品制作。文中给出一个大气环境应急响应演习应用实例,显示该模式系统对影响范围较大的有毒气体泄漏事件应急响应工作具备一定的指导意义和应用前景。
A regional refined atmospheric environmental emergency response system, targeting at the sudden diffusion of atmospheric pollutants, such as chemical accidents, was developed by the National Meteorological Center. The modelling system, based on the atmosphere dispersion model HYSPLIT_4 and the numerical model WRF, can produce such forecast products as trajectory, concentration, and deposition forecasts with the refined GIS information. The modelling system is available for running on demand and maintained in a state of readiness so that the requests for products can be satisfied quickly. An example of atmospheric environmental emergency response is given, and the results show that the modelling system is able to provide instructive products in case of emergency, such as an accident of toxic-gas teakage.
出处
《气象科技》
北大核心
2010年第5期635-639,667,668,共7页
Meteorological Science and Technology
基金
中国气象局气象新技术推广项目"核与非核污染物扩散传输环境紧急响应数值预报系统研发"资助
