Vaisala CL51 Ceilometer for Cloud Height Detection
|SeaVoX Device Catalogue
|A ceilometer designed to measure high-range cirrus cloud heights without surpassing the low and middle layer clouds, or vertical visibility in harsh conditions. CL51 can detect 3 cloud layers simultaneously. If the cloud base is obscured due to precipitation or ground-based fog, CL51 reports vertical visibility. CL51 can provide the backscatter profile over the full measurement range. This information provides a possibility for an advanced boundary layer and atmospheric analysis. CL51 employs a pulsed diode laser LIDAR (light detection and ranging) technology, where short, powerful laser pulses are sent out in a vertical or near-vertical direction. The reflection of light (backscatter) caused by clouds, precipitation or other obscuration is analysed and used to determine the cloud base height. It has a cloud reporting range up to 13 km, and can provide backscatter profiling over full range up to 15 km.
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|L05 SeaDataNet device categories - (2)
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