BackForward Variable: Meteorological Optical Range (MOR) (surface)

Full name Meteorological Optical Range (MOR) (surface)
Definition Length of path in the atmosphere required to reduce the luminous flux in a collimated beam from an incandescent lamp, at a colour temperature of 2 700 K, to 5 per cent of its original value, the luminous flux being evaluated by means of the photometric luminosity function of the International Commission on Illumination. For aeronautical purposes, the surface MOR is measured at a height of 2.5 m above the surface. (Unit: m )
Measuring Units m Uncertainty Units m
Horizontal Res Units Vertical Res Units
Stability Units m (Stability /decade)


Last modified: 2011-06-23
Applied in OSCAR/Space Gap Analysis: No
  • Domain: Atmosphere
    • Sub-domain: Aerosols and radiation
      • Variable: Meteorological Optical Range (MOR) (surface)
        • Measured in Layers:
          • Near Surface
  • Cross-cutting themes:

Requirements defined for Meteorological Optical Range (MOR) (surface)  (1)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green and threshold orange

Id Variable Layer App Area Uncertainty Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source
682 Meteorological Optical Range (MOR) (surface) Near Surface Aeronautical Meteorology 5 m
7 m
10 m

36 sec
108 sec

36 sec
108 sec
Global firm 2011-06-14 J van der Meulen