BackForwardInstrument:  ALI (HAWCSat) 

Instrument details
Acronym ALI (HAWCSat)
Full name Aerosol Limb Imager
Purpose To observe mid-to high-altitude aerosol particles. It will allow scientists to understand aerosol sizes and densities, and their effects on clouds, reflected sunlight, and climate change.
Short description Radiometer with 10 channels in the 610 - 1560 nm wavelength range. More details when available.
Background New development
Scanning Technique Limb scanning with 200 km swath
Resolution 0.25 km vertical resolution
Coverage / Cycle Repeat cycle 24 days
Mass Power Data Rate


Providing Agency CSA
Instrument Maturity Flown on an R&D satellite
Utilization Period: TBD
Last update: 2023-11-02
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • Moderate resolution optical imager
WIGOS Subcomponents
  • Subcomponent 1
  • UV/VIS/NIR sounders, nadir and limb
  • UV/VIS/NIR scanning limb sounder
Mission objectives
Primary mission objectives
  • Aerosol Absorption Optical Depth
  • Aerosol Extinction Coefficient
  • Aerosol Layer Height
  • Aerosol Optical Depth
  • Aerosol effective radius
  • Aerosol mass mixing ratio
  • Aerosol type
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.