BackForward Variable: Particle single scattering albedo [FM, 550nm]

Definition
Full name Particle single scattering albedo [FM, 550nm]
Definition The ratio of the fine mode particle scattering to the fine mode particle total extinction coefficient at 550nm.According to "WMO Guide to Meteorological Instruments and Methods of Observation" Describes the relative contributions of scattering and absorption to the total light extinction. According to GCOS: The Aerosol Single Scattering Albedo (ω0 or SSA) ratio of particle light scattering coefficient to the particle light extinction coefficient. ω0 is defined as σsp/σep, or σsp/(σsp+ σap) where (σep), is the volumetric cross-section for light extinction and is commonly called the particle light extinction coefficient typically reported in units of Mm-1 (10-6 m-1). It is the sum of the particle light scattering (σsp) and particle light absorption coefficients (σap), σep = σsp + σap . All coefficients are spectrally dependent.
Measuring Units Uncertainty Units
Horizontal Res Units Vertical Res Units
Stability Units (Stability /decade)

 

Comment: FM = fine mode measured at a wavelength of 550 nm.
Last modified: 2022-07-04
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Atmosphere
    • Sub-domain: Atmospheric chemistry
      • Variable: Particle single scattering albedo [FM, 550nm]
        • Measured in Layers:
  • Cross-cutting themes:

Requirements defined for Particle single scattering albedo [FM, 550nm]  (2)

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, threshold orange
Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red

Id Variable Layer App Area ATP Uncertainty Layer/s Quality Coverage Quality Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source General Comment Application Area Comment Horizontal Coverage Comment Observation Comment Performance Comment
956 Particle single scattering albedo [FM, 550nm] 2.6 Atmospheric Composition Forecasting and Monitoring 0.01 
0.03  		3 h
30 d 		3 h
12 h 		Global firm 2022-07-04 GAW Expert Team on Atmospheric Composition Network Design and Evolution Might require definition of cut-off diameter for fine mode.
957 Particle single scattering albedo [FM, 550nm] Forecasting Atmospheric Composition 0.01 
0.03  		3 h
30 d 		3 h
12 h 		Global firm 2022-07-04 GAW Expert Team on Atmospheric Composition Network Design and Evolution Might require definition of cut-off diameter for fine mode.