东亚地区黄沙长距离输送模式设计

A Model for Long-range Transport of Yellow-sand in East Asia

在比较国内外相关起沙机制模型的基础上，结合中国北方大量气象台站的有关起沙过程的观测资料，提出了一个适合我国北方的用于黄沙输送模拟与预报的新的起沙机制模型。采用此起沙模型，通过对黄沙输送过程中的干沉降过程、降水清除过程的参数化处理，建立了适合东亚地区的分谱的黄沙输送模式。模式考虑了黄沙的分谱机理及可能的微物理过程。通过与实测资料的对比，表明模式可以较好地模拟黄沙的输送过程。

A new mobilization model, which is suitable to apply for modeling and forecast of yellow-sand transport for North China, is developed with analysis of observed mobilization data of meteorological stations in North China. Based on the model, a long-range transport model for yellow-sand is developed and applied to East Asia. It considers the parameterization of dry and wet deposition, the spectrum of yellow-sand and the micro-physical process in detail. Comparison with observation data proves that the model has good ability to reappear the process of the transport of yellow-sand.