CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- MLS (EOS-Aura)
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Full Name
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Microwave Limb Sounder (EOS-Aura)
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Status
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Operational
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Instrument Agencies
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NASA
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Maturity
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Instrument Type
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Atmospheric temperature and humidity sounders 
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Geometry
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Limb-scanning
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Instrument Technology
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Limb-scanning MW spectrometer
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Sampling
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Sounding
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Data Access
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Open Access
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Data Format
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HDF-EOS
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Measurements and Applications
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Measures lower stratospheric temperature and concentration of H2O, O3, ClO, HCl, OH, HNO3, N2O and SO2.
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Resolution Summary
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3 x 300 km horizontal x 1.2 km vertical
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Swath Summary
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Limb scan 2.5 - 62.5 km Limb to limb
[Max Swath: 62 km]
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Accuracy Summary
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Temperature: 4 K, Ozone: 50%
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Waveband Summary
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Microwave: 118 GHz, 190 GHz, 240 GHz, 640 GHz and 2.5 THz
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| FIR (~15.0 µm - ~0.1 cm) |
| MW (~0.1 cm - ~100 cm) |
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Instrument Measurements
Measurements Overview
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| 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 |
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Instrument Missions
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