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GM1 MET.TR.210(b)(4) Observing meteorological elements

ED Decision 2017/001/R

VISIBILITY — AVERAGING — MARKED DISCONTINUITY

A marked discontinuity occurs when there is an abrupt and sustained change in visibility, lasting at least 2 minutes, which reaches or passes through one or more of the following values: 800, 1 500 or 3 000 and, in cases where significant numbers of flights are operated in accordance with the visual flight rules,  5 000 m.
Details
Source-Title: GM1 MET.TR.210(b)(4) Observing meteorological elements View latest amendments
Erulesid: ERULES-1963177438-3434 Compare versions
Domain: Air traffic management/Air navigation services
Activitytype: Meteorological services (MET)
Amendedby: Initial issue
Applicabilitydate: 2 January, 2020 (all other service providers)
Entryintoforcedate: 9 March, 2017
Icaoreference: Annex 3
Regulatedentity: MET provider
Regulatorysource: ED Decision 2017/001/R Navigate
Regulatorysubject: Part-MET
Typeofcontent: GM to IR (Guidance material to implementing rule)
Parentir: MET.TR.210 Observing meteorological elements
Origin: EASA
Category: EAR