Statistics of radar altitude estimates of plume-top over time intervals of 12...

Radar did not detect plume when below about 2.9 km due to mountain ranges and curvature of the Earth.Date/time (UTC) refer to the end of the time interval.受山脉地形与地球曲率效应影响，当探测高度低于约2.9千米时，雷达无法侦测到羽流。所用的协调世界时（UTC）时间戳均对应该观测时段的结束时刻。