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A ceilometer is a device that uses a laser or other light source to determine the height of a cloud ceiling or cloud base. Ceilometers can also be used to measure the aerosol concentration within the atmosphere. A ceilometer that uses laser light is a type of atmospheric lidar (light detection and ranging) instrument.
Laser ceilometer, Optical drum ceilometer & Hazards
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light laser cloud ceilometers base also uses atmosphere air beam height concentration instrument optical lidar aerosol projector clouds signal using
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Ceilometer | is a | device that uses a laser or other light source to determine the height of a cloud ceiling or cloud base | 0.90 | text |
| Iceland.Examination of the behavior of ceilometers under various cloud-cover conditions has led to the improvement of algorithms to avoid false readings | instance of | The movement of volcanic ash has also been tracked from areas | 0.80 | text |
| binoculars near ceilometers is not recommended | instance of | Using optical instruments | 0.80 | text |
| because lenses in instruments could concentrate the beam | instance of | Using optical instruments | 0.80 | text |
| damage one's eyes | instance of | Using optical instruments | 0.80 | text |
| Ceilometer | related to External links | National Science Digital Library | 0.60 | section |
| Ceilometer | related to External links | CeilometerCeilometer Archived | 0.60 | section |
| Ceilometer | related to External links | Wayback Machine | 0.60 | section |
| Ceilometer | related to External links | McGill UniversityNational Weather Service | 0.60 | section |
| Ceilometer | related to External links | ASOS | 0.60 | section |
| Ceilometer | related to Hazards | Ceilometers | 0.60 | section |
| Ceilometer | related to Hazards | In | 0.60 | section |
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