THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Atmosphere >
Aerosols >
Aerosol effective radius (column/profile)


Measurement Definition*: Vertical profile of the size distribution of aerosol, assimilated to spheres of the same volume. Requested in the troposphere (assumed height: 12 km) and as columnar average - Physical unit: [ mm ] - Accuracy unit: [ mm ].
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
AVHRR/3
Advanced Very High Resolution Radiometer/3
Operational
Measurements of land and sea surface temperature, cloud cover, snow and ice cover, soil moisture and vegetation indices. Data also used for volcanic eruption monitoring.n/a
MISR
Multi-angle Imaging SpectroRadiometer
Operational
Measurements of global surface albedo, aerosol and vegetation properties. Also provides multi-angle bidirectional data (1% angle-to-angle accuracy) for cloud cover and reflectances at the surface and aerosol opacities. Global and local modes.Multi-channel/direction/polarisation radiometer
MODIS
MODerate-Resolution Imaging Spectroradiometer
Operational
Data on biological and physical processes on the surface of the Earth and in the lower atmosphere, and on global dynamics. Surface temperatures of land and ocean, chlorophyll fluorescence, land cover measurements, cloud cover (day and night).n/a
MSU-MR
Low-resolution multispectral scanning imager-radiometer
Operational
Parameters of clouds, snow, ice and land cover, vegetation, surface temperature, fire detection.n/a
OCM (Oceansat-2)
Ocean Colour Monitor (Oceansat-2)
Operational
Ocean colour data, Estimation of phytoplankton concentration, identification of potential fishing zones, assessment of primary productivity.n/a
OLCI
Ocean and Land Colour Imager
Operational
Marine and land services.n/a
Sounder
Sounder
Operational
Atmospheric soundings and data on atmospheric stability and thermal gradient winds.n/a
MSI (EarthCARE)
Multi-Spectral Imager (EarthCARE)
Approved
Observation of cloud properties and aerosol (aerosols to be confirmed).n/a
Advanced MSU-MR
Advanced Multispectral scanning imager-radiometer
Proposed
Parameters of clouds, snow, ice and land cover, vegetation, surface temperature, fire detection.n/a
* Description adapted from WMO.
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