Statistics of radar altitude estimates of plume-top over time intervals of 6 ...

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影响，雷达无法探测到处于约2.9千米以下高度的烟羽。采用协调世界时（UTC）标注的时间与日期，均指代对应时间区间的结束时刻。