AMC1 MET.TR.210(c)(3) Observing meteorological elements

• ED Decision 2022/004/R found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

AMC1 MET.TR.210(c)(3) Observing meteorological elements ED Decision 2022/004/R RUNWAY VISUAL RANGE (RVR) — RUNWAY LIGHT INTENSITY (a) Instrumented systems should consider the runway light intensity. (b) When instrumented systems are used for the assessment of RVR, computations should be made separately for each available runway. (c) For local routine report and local special report, the light intensity to be used for the computation should be: (1) for a runway with the lights switched on and a light intensity of more than 3 % of the maximum light intensity available, the light intensity actually in use on that runway; (2) for a runway with the lights switched on and a light intensity of 3 % or less of the maximum light intensity available, the optimum light intensity that would be appropriate for operational use in the prevailing conditions; and (3) for a runway with lights switched off (or at the lowest setting pending the resumption of operations), the optimum light intensity that would be appropriate for operational use in the prevailing conditions. (d) In METAR and SPECI, the RVR should be based on the maximum light intensity available on the runway. AMC1 MET.TR.210(c)(3) Observing meteorological elements ED Decision 2022/004/R RUNWAY VISUAL RANGE (RVR) — RUNWAY LIGHT INTENSITY (a)       Instrumented systems should consider the runway light intensity. (b)       When instrumented systems are used for the assessment of RVR, computations should be made separately for each available runway. (c)       For local routine report and local special report, the light intensity to be used for the computation should be: (1)       for a runway with the lights switched on and a light intensity of more than 3 % of the maximum light intensity available, the light intensity actually in use on that runway; (2)       for a runway with the lights switched on and a light intensity of 3 % or less of the maximum light intensity available, the optimum light intensity that would be appropriate for operational use in the prevailing conditions; and (3)       for a runway with lights switched off (or at the lowest setting pending the resumption of operations), the optimum light intensity that would be appropriate for operational use in the prevailing conditions. (d)       In METAR and SPECI, the RVR should be based on the maximum light intensity available on the runway.