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EA: ATM_CEILING_METHOD

Status:

STD 2005/06/07

Code:

113

Concept definition:

The method used to determine the <<ATM_CEILING>>.

Attribute value type:

ENUMERATION

Reference type:

Reference:

[GMET, "cloud height indicator"]

Supplemental references:

Enumerants (presented in a natural order)

1 / 2 Entries per page: 5 10 20 50 All Custom: 11 entries (displaying 1-10)

Status	Attribute label	Enumerant label ▾	Concept definition	Code	Ref type	Reference	Supplemental references
STD 2005/06/07	ATM_CEILING_METHOD	AIRCRAFT	By observation of the <<HEIGHT_AGL>> of the base of the lowest <CLOUD> from an <AIRCRAFT>.	1	IR	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":A]
STD 2005/06/07	ATM_CEILING_METHOD	BALLOON	By observing the ascent of a balloon and the <<HEIGHT_AGL>> at which it disappears into the lowest <CLOUD>.	2	IR	[WMO8, 15.5, "MEASUREMENT OF CLOUD HEIGHT BY BALLOON"]	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":B]
STD 2005/06/07	ATM_CEILING_METHOD	CLOUD_OBSERVATION	By observing the vertical distance to the base of the lowest <CLOUD>; cloud observation.	3	IR	[WMO8, 15.2.3, "Estimation of cloud height"]
STD 2005/06/07	ATM_CEILING_METHOD	ESTIMATED	By estimating the <<HEIGHT_AGL>> of the base of the lowest <CLOUD>; estimated.	4	IR	[WMO8, 15.2.3, "Estimation of cloud height"]	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":E]
STD 2005/06/07	ATM_CEILING_METHOD	LASER_CEILOMETER	By measuring the <<TIME_QUANTITY>> taken for a pulse of coherent light to travel from a transmitter to the base of the lowest <CLOUD> and return to the receiver; laser ceilometer.	5	IR	[WMO8, 15.7, "LASER CEILOMETER"]
STD 2005/06/07	ATM_CEILING_METHOD	MEASURED	By measurement of the <<HEIGHT_AGL>> of the base of the lowest <CLOUD>.	6	IR	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":M]	[SOED, "measured"]
STD 2005/06/07	ATM_CEILING_METHOD	MODELLED	By modelling, using numerical methods, the <<HEIGHT_AGL>> of the base of the lowest <CLOUD>; modelled.	7
STD 2005/06/07	ATM_CEILING_METHOD	OBSCURATION_LIMIT	By the reported <<HEIGHT_AGL>> limit of <<VISIBILITY_DISTANCE>> into a surface-based obscuration.	8	IR	[WMO8, 15.1.4.1, "Cloud amount"]	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":W]
STD 2005/06/07	ATM_CEILING_METHOD	RADAR	By measuring the time taken for a radar pulse to travel from a transmitter to the base of the lowest <CLOUD> and return to the receiver.	9	IR	[JMCDM, "SKY-CONDITION-OBSERVATION ceiling determination code":R]
STD 2005/06/07	ATM_CEILING_METHOD	ROTATING_BEAM_CEILOMETER	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.	10	IR	[WMO8, 15.6, "ROTATING-BEAM CEILOMETER"]

1 / 2 Entries per page: 5 10 20 50 All Custom: 11 entries (displaying 1-10)

Group membership:

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