Concept
Vaisala CL51 Ceilometer for Cloud Height Detection
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1678/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Vaisala CL51 | ||
| Definition | 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. | ||
| Date | 2021-04-28T10:42:41 | ||
| Identifier | SDN:L22::TOOL1678 | ||
| Note | accepted | ||
| Is Version Of | TOOL1678 | ||
| version | 1 | ||
| Broader | L19:SDNKG17 |
sensor_model | |
| L05 SeaDataNet device categories - (2) | |||
| Related | L35:MAN0025 |
Vaisala | |
B75:ORG00323 |
Vaisala Ltd | ||
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