摘要
利用EPTOMS卫星遥感资料,并结合地面气象观测记录,分析了影响我国典型沙尘暴天气的发生、发展和传输过程。定义了使用EPTOMS气溶胶指数定量描述沙尘天气强度的指标体系,并对1998年3—4月间发生的沙尘天气的强度及其演变进行了详细的分析。结果表明:利用EPTOMS气溶胶指数并结合气象观测资料,可以对大规模的沙尘天气进行及时判别、监视,并预报影响范围及传输路径;同时,利用TOMS气溶胶指数建立起来的指标体系可以半定量化地描述沙尘暴天气的强度和影响范围。
The formation, development and transportation features of typical dust storms influencing China were analyzed using EP/TOMS remote sensing data and meteorological observational data of the dust storms. The indicator system applying EP/TOMS aerosol index to quantitatively describe the intensity of dust storm was put forward. The intensity and evolution of dust storms that happened during March to April, 1998, were analyzed in detail. The results show that the EP/TOMS aerosol index data in combination with the meteorological observational data can be used to timely recognize and monitor large dust storms, and to forecast their influencing scopes and transportation paths. Also the intensity and influencing scale of dust storms can be semi-quantified utilizing the indicator system based on EP/TOMS aerosol index, which provides a new approach to study the sand storms.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
2005年第4期96-101,共6页
Research of Environmental Sciences
基金
国家重点基础研究计划项目(G1999043505)
国家自然基金委海外青年学者合作基金资助项目(40028503)
