EA: ATM_CEILING_METHOD
EE: ROTATING_BEAM_CEILOMETER
Status:
STD 2005/06/07
Code:
10
EA label:
ATM_CEILING_METHOD
Concept definition:
By measurement of the angle of elevation of a light beam scanning the vertical plane, at the instant at which a proportion of the light scattered by the base of the lowest <
CLOUD
> is received by a photoelectric cell directed vertically upwards at a known distance from the light source; rotating beam ceilometer.
Reference type:
IR
Reference:
[
WMO8
, 15.6, "ROTATING-BEAM CEILOMETER"]
Supplemental references:
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