- cloud ceilometer
- 云幕仪
Atmospheric Sciences (English-Chinese) dictionary. 2014.
cloud ceilometer
Look at other dictionaries:
ceilometer — An instrument to measure the heights of clouds during the day. The ceilometer beams a light at the cloud base, which it detects by a photoelectric cell. A process of triangulation then determines the height of the cloud. Cloud ceilometer … Aviation dictionary
ceilometer — ☆ ceilometer [sē läm′ət ər ] n. [< CEILING + O + METER] an automatic device used to determine the height of a cloud ceiling, as by means of a reflected light beam … English World dictionary
Ceilometer — A ceilometer is a device that uses a laser or other light source to determine the height of a cloud base. Ceilometers can also be used to measure the aerosol concentration within the atmosphere.Optical Drum Ceilometer* An optical drum ceilometer… … Wikipedia
ceilometer — /see lom i teuhr, si /, n. an automatic device for measuring and recording the height of clouds by projecting a modulated beam of light onto a cloud base, receiving the reflection of light through a photoelectric apparatus, and computing the… … Universalium
cloud base — noun The altitude of the base of a mass of cloud; measured by a ceilometer … Wiktionary
ceilometer — sēˈläməd.ə(r), sə̇ˈ noun ( s) Etymology: ceiling + o + meter : a photoelectric instrument for determining the height of the cloud ceiling above the earth by indicating the angular elevation of a spot of light formed where a strong modulated beam… … Useful english dictionary
ceilometer — noun Etymology: ceiling + o + meter Date: 1943 a photoelectric instrument for determining by triangulation the height of the cloud ceiling above the earth … New Collegiate Dictionary
ceilometer — noun A device that measures the altitude of the cloud base, especially above an airfield … Wiktionary
ceilometer — instrument for measuring height of cloud ceiling above earth Scientific Instruments … Phrontistery dictionary
ceilometer — /siˈlɒmətə/ (say see lomuhtuh) noun Meteorology a device for measuring and recording the height of clouds, based on the reflection of a beam of light from a cloud base. {ceil(ing) + o + meter1} …
ceilometer — n. instrument measuring the distance between cloud ceiling and Earth s surface … Dictionary of difficult words
