Observations from ground, air and satellite of the ash's extent at specific times might be used to create a series of model runs that would track it better.
地面观测点，特定时间内空气和火山灰范围的卫星图片可以用来建立一系列更好跟踪火山灰的模型。
2
The groundtrack of the Jason-1 satellite is shown here as it crossed the Sumatra-Andaman tsunami at hourly intervals after the earthquake occurred.