摘要
针对火山喷发对环境的恶劣影响,提出利用GPS测量方法——掩星反演测量与信噪比多路径测量,监测火山灰并估计火山灰喷发事件的持续时间。以2015年12月埃特纳火山和2008年7月奥克莫克火山的爆发为研究对象,结果表明:大气温度骤降的高度和骤降的幅度与火山灰的高度和浓度成正比;由信噪比异常骤降的时间区间可估计火山灰喷发的时间区间。
Aiming at the problem that the pernicious effects of volcanic eruption on the environment,this paper proposes GPS method--radio-occultation（GPS-RO） measurement and signal to noise（SNR） multipath measurement to monitor ash and estimate the duration of eruption events.Taking Mount Etna in December 2015 and Mount Okmok in July 2008 as research objects,results showed that the dropping altitude and amplitude of atmosphere temperatures were proportional to the height and concentration of volcanic ash.The time intervals of volcanic eruptions could be obtained by the time intervals of SNR abnormal drop.
出处
《工业控制计算机》
2018年第11期19-21,共3页
Industrial Control Computer
