CEOS EO HANDBOOK – INSTRUMENT SUMMARY - Solar reflected spectrometer (CLARREO) -
Full Name Solar reflected spectrometer (CLARREO) Status No longer considered
Instrument Agencies NASA Maturity Medium Heritage
Instrument Type Earth radiation budget radiometers Geometry Nadir-viewing
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications Solar reflected spectrometer (CLARREO).
Resolution Summary
Swath Summary
Accuracy Summary 3 parts per 100
Waveband Summary 300 to 2000 nm.
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
AerosolsAerosol optical depth (column/profile)
Aerosol absorption optical depth (column/profile)
Radiation budgetDownwelling (Incoming) solar radiation at TOA
Upward short-wave irradiance at TOA
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
Earth Radiation Budget click here click here search ECV Inventory records
Instrument Missions
CLARREO-2 - Climate Absolute Radiance and Refractivity Observatory (2019 - 2022)
CLARREO-4 - Climate Absolute Radiance and Refractivity Observatory (2020 - 2023)