【摘要】 本文介绍了在火山灰、核放射性物质和强沙尘暴引发的沙尘粒子的长距离输送数值模拟领域里近年来获得的有关新进展。其基本进展是:1)引进美国NOAA空气资源研究所的HYSPLIT-4模式。并以此为核心形成火山灰、核放射性物质和强沙尘暴的浓度与轨迹数值模拟与预报系统。2)提出一个非连续性空间分布污染场的平流输送方案。3)新发现一个数值模式中的误差污染机制。更多还原

【Abstract】 In this paper,some progresses are introduced on the simulation study of the long distance transport of volcano ashes,nuclear radioactive pollutants and severe dust storms.The basic progresses are 1) The American HYSPLIT-4 model of Air Resource Laboratory has been successfully introduced to form the forecasting system of volcano ashes,nuclear radioactive pollutants and severe dust storms.2) A new advection scheme has been developed to simulate discontinuous fields of pollutants.3) An error contamination mechanism of numerical models has been founded.更多还原