CEOS EO HANDBOOK – INSTRUMENT SUMMARY - MAESTRO -
Full Name Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation Status Operational
Instrument Agencies CSA Maturity
Instrument Type Atmospheric chemistry Geometry Occultation
Instrument Technology Limb-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format ASCII, HDF, NetCDF
Measurements and Applications Chemical processes involved in the depletion of the ozone layer, and now including a high quality water vapour data product.
Resolution Summary Approx 1 - 2 km vertical
Swath Summary
Accuracy Summary
Waveband Summary UV - NIR: 0.285 - 1.03 µm (1 - 2 nm spectral resolution)
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
AerosolsAerosol Extinction / Backscatter (column/profile)
Atmospheric Humidity FieldsAtmospheric specific humidity (HT, LS)
Cloud particle properties and profileCloud liquid water (column/profile)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)NO2 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Aerosols properties click here click here search ECV Inventory records
Cloud Properties click here click here search ECV Inventory records
Ozone click here click here search ECV Inventory records
Water Vapour (upper air) click here click here search ECV Inventory records
Instrument Missions
SCISAT-1 - SCISAT-I/ACE (2003 - 2026)