Meteorological Controls on Aerosol Distributions in ACE-Asia

该项目涉及调查控制气溶胶从东南亚流出的气象因素。 该项目有两个组成部分：1）对气象数据、能见度和沙尘观测进行历史分析; 2）为将于2001年春季开展的ACE-亚洲密集实地活动提供业务支持。 对于历史分析，气象系统（包括气旋和反气旋）的结构、强度、发生区域和年际变化将使用动力变量的回顾性分析（即，再分析中获得的气象场）在至少十年的时间内。这项研究将包括地面和高空空气场，特别是包括与地面系统有关的大规模动力环境，这种环境控制着它们的发展、运动和最终衰减。将调查矿物尘发生与母气象系统的空间和时间关系。

This project involves the investigation of meteorological factors controlling the outflow of aerosols from Southeastern Asia. The project has two components: 1) a historical analysis of meteorological data, visibility, and dust observations, and 2) operational support for the ACE-Asia intensive field campaign to be carried out during spring 2001. For the historical analysis, the structure, intensity, area of occurrence and interannual variability of meteorological systems, both cyclones and anticyclones will be documented using retrospective analyses of dynamical variables (i.e., meteorological fields obtained in a reanalysis) over a period of at least ten years. The research will include the surface and upper air fields, specifically including the larger-scale dynamical environment to which the surface systems relate and which control their development, motion and eventual decay. The spatial and temporal relationship of the occurrence of mineral dust to the parent meteorological system will be investigated.