Measurements and Applications
Measures lower stratospheric temperature and concentration of H2O, O3, ClO, HCl, OH, HNO3, N2O and SO2.
Full Name
Microwave Limb Sounder (EOS-Aura)
Status
Operational
Instrument Agencies
Maturity
Instrument Type
Atmospheric temperature and humidity sounders 
Geometry
Limb-scanning
Instrument Technology
Limb-scanning MW spectrometer
Sampling
Sounding
Data Access
Open Access
Data Format
HDF-EOS
Resolution
3 x 300 km horizontal x 1.2 km vertical
Swath
Limb scan 2.5 - 62.5 km Limb to limb
[Max Swath: 62 km]
Accuracy
Temperature: 4 K, Ozone: 50%
Waveband
Microwave: 118 GHz, 190 GHz, 240 GHz, 640 GHz and 2.5 THz
| FIR (~15.0 µm - ~0.1 cm) |
| MW (~0.1 cm - ~100 cm) |
Aura - Aura (formerly EOS Chemistry) (2004 - 2025) |
| Category | Parameter |
| Atmospheric Humidity Fields | Atmospheric specific humidity (HT, LS, HS&M)  |
| Atmospheric Temperature Fields | Atmospheric temperature (HT, LS, HS&M) |
| Cloud particle properties and profile | Cloud ice content (at cloud top) |
| Ozone | O3 Mole Fraction |
| Trace gases (excluding ozone) | CO Mole Fraction |
| OH (column/profile) |
| N2O (HT, LS) |
| HNO3 (HT, LS) |
| HCl (HT, LS) |
| BrO (HT, LS, HS&M) |
| ClO (HT, LS, HS&M) |
| SO2 Mole Fraction |