Full Name UVAS (Ultraviolet Visible and near-infrared Atmospheric Sounder) Status No longer considered
Instrument Agencies CDTI, CSIC Maturity Medium Heritage
Instrument Type Atmospheric chemistry Geometry Nadir-viewing
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Sounding
Data Access Constrained Access Data Format
Measurements and Applications High spatial resolution observations of air quality and climate gases such as ozone (O3), nitrogen dioxide (NO2), sulphur dioxide (SO2), formaldehyde (HCHO) glyoxal (CHO-CHO), and aerosols over selected zones of interest (urban and industrialized areas, mayor motorways, and special events like forest fires, volcano eruption and sand storms). Also measurements of halogenated compounds will be performed, including bromine monoxide (BrO) and iodine monoxide (IO).
Resolution Summary 10km
[Best Resolution: 10000m]
Swath Summary 250
[Max Swath: 250 km]
Accuracy Summary trace gas profile 10 - 40%
Waveband Summary UV/VIS 290 - 490 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 (TC)
OzoneO3 Mole Fraction
Trace gases (excluding ozone)NO2 Mole Fraction
BrO (TC)
SO2 Mole Fraction
HCHO Mole Fraction
CHOCHO (column/profile)
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