| Instrument: CEILOMETERS |
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Related Data Sets View all records related to this instrument Description Ceilometers are devices using a laser or other light source to determine the height of a cloud base. An optical ceilometer uses triangulation to determine the height of a spot of light projected onto the base of the cloud; a laser ceilometer determines the height by measuring the time required for a pulse of light to be scattered back from the cloud base. Additional information available at http://www.wikipedia.org/wiki/Ceilometer |
