Measures the celling or base height of cloud layers?

The measurement of the ceiling or base height of cloud layers is typically done using a ceilometer, which uses a laser or light source to determine the distance to the cloud base. This measurement is crucial for aviation, meteorology, and climate studies, as it helps assess visibility conditions and atmospheric stability. Additionally, weather balloons and radar can also provide data on cloud heights. Accurate cloud height measurements are essential for forecasting weather and understanding atmospheric processes.