You are here

GCOS Atmosphere Composition ECV - Aerosols Properties

Atmospheric aerosols are minor constituents of the atmosphere by mass, but a critical component in terms of impacts on the climate and especially climate changes. Aerosols influence the  global radiation balance by directly scattering solar radiation and indirectly through influencing cloud reflectivity, cloud cover and cloud lifetime.

Product requirements:

  • Aerosol optical depth:
    • Frequency: 4hr
    • Resolution: 5-10km/NA/
    • Required Measurement uncertainty: Max(0.03;10%)
    • Stability (per decade unless otherwise specified): 0.02/decade
    • Standards/References: ESA CCI CMUG tables (http://www.esa-cmug-cci.org/)
    • Entity (Satellite): WGClimate
  • Single-scattering albedo:
    • Frequency: 4hr
    • Resolution: 5-10km/NA/
    • Required Measurement uncertainty: 0.03
    • Stability (per decade unless otherwise specified): 0.01
    • Entity (Satellite): WGClimate
  • Aerosol-layer height:
    • Frequency: 4hr
    • Resolution: 5-10km/NA/
    • Required Measurement uncertainty: 1km
    • Stability (per decade unless otherwise specified): 0.5km
    • Entity (in situ): WGClimate
  • Aerosol-extinction coeff. profile near tropopause:
    • Frequency: weekly
    • Resolution: 200-500 km/ 1km
    • Required Measurement uncertainty: 10%
    • Stability (per decade unless otherwise specified): 20%
    • Entity (Satellite): WGClimate
  • Aerosol-extinction coeff. Profile mid stratosphere:
    • Frequency: weekly
    • Resolution: 2km
    • Required Measurement uncertainty: 10%
    • Stability (per decade unless otherwise specified): 20%
    • Entity (Satellite): WGClimate

Contributing networks:

Data sources: