CEOS EO HANDBOOK – INSTRUMENT SUMMARY - UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape) -
Full Name UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape) Status No longer considered
Instrument Agencies NASA Maturity High Heritage - Non-Operational
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Nadir-viewing
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Imaging
Data Access Open Access Data Format
Measurements and Applications Measures natural and human-produced gases and aerosols in the atmosphere, including those that react in sunlight to form polluting low-level ozone.
Resolution Summary 7 km spatial resolution, single layer vertical resolution, 0.9 nm spectral resolution
[Best Resolution: 7000m]
Swath Summary typically uses 2D data array with 1-D north to south in space (7 km wide) and 1D for (oversampled) spectral intervals/bins. The spatial domain is mechanically scanned for east to west to cover a continental domain (either north or south America).
Accuracy Summary ozone precision: 1.3 x 10^16 cm^(-2); NO2 precision: 5 x 10^14 cm^(-2)
Waveband Summary 315 - 600 nm
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
AerosolsAerosol optical depth (column/profile)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)NO2 Mole Fraction
SO2 Mole Fraction
HCHO 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
Ozone click here click here search ECV Inventory records
Instrument Missions
GEO-CAPE - Geostationary Coastal and Air Pollution Events (2023 - 2026)