THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - CLARREO Pathfinder Reflected Solar -
Full Name CLARREO Pathfinder - RS Status Proposed
Instrument Agencies NASA Maturity
Instrument Type Hyperspectral imagers Geometry Nadir-viewing
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Other
Data Access Open Access Data Format
Measurements and Applications Measuring key climate change variables such as global and zonal mean surface temperature, tropospheric lapse rate and humidity, cloud fraction, snow and ice cover, and aerosol optical depth.
Resolution Summary 340 m.
Swath Summary 10 deg (67 km).
Accuracy Summary Absolute uncertainty goal is identical to CLARREO Mission Requirement of 0.3% (k=2) in reflectance.
Waveband Summary 400 to 2300 nm at 4-nm sampling interval with 8-nm resolution.
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
TIR (~6.0 µm - ~15.0 µm)
FIR (~15.0 µm - ~0.1 cm)
Instrument Measurements
CategoryParameterAccuracy
Radiation budgetUpwelling (Outgoing) short-wave radiation at TOA0.3 [%]
Upwelling (Outgoing) spectral radiance at TOA0.1 [degrees Kelvin]
Instrument Missions
CLARREO Pathfinder-on-ISS - International Space Station/Climate Absolute Radiance & Reflectivity Observatory Pathfinder (2020 - 2021)
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