Full Name Spectro-Polarimeter for Exploration Status Being developed
Instrument Agencies NSO, SRON, NASA Maturity
Instrument Type Multiple direction/polarisation radiometers Geometry Nadir-viewing
Instrument Technology Multi-channel/direction/polarisation radiometer Sampling Imaging
Data Access Open Access Data Format
Measurements and Applications Polarimeter for measuring aerosol optical properties, clouds and aerosol types. Multi-angle spectro-polarimetry by spectral modulation technology. Distribution and detailed micro-phyiscal properties of atmospheric aerosol. Direct and indirect aerosol radiative forcing and their impact on climate.
Resolution Summary 2.5 km
[Best Resolution: 2500m]
Swath Summary Narrow swath ±4.5°; 100 km; global coverage: 1 month.
[Max Swath: 100 km]
Accuracy Summary Polarimetric: 0.003; Radiometric: 0.02
Waveband Summary 385 to 770nm at 2nm bands
VIS (~0.40 µm - ~0.75 µm)
Instrument Measurements
Measurements Overview
AerosolsAerosol Extinction / Backscatter (column/profile)
Aerosol optical depth (column/profile)
Aerosol effective radius (column/profile)
Aerosol absorption optical depth (column/profile)
Aerosol Single Scattering Albedo
Aerosol Layer Height
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
Instrument Missions
PACE - Plankton, Aerosol, Cloud, ocean Ecosystem (2024 - 2027)