Measurements and Applications
Daytime wind measurements below 50 km from Doppler shifts of molecular oxygen absorption lines. Day and night wind measurements above about 60 km from Doppler shifts of neutral and ionised atomic oxygen emission lines. Also measures temperature.
Full Name
High Resolution Doppler Imager
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Atmospheric chemistry 
Geometry
Instrument Technology
Limb-scanning SW spectrometer
Sampling
Sounding
| VIS (~0.40 µm - ~0.75 µm) |
| NIR (~0.75 µm - ~1.3 µm) |
UARS - Upper Atmosphere Research Satellite (1991 - 2005) |