Measurements and Applications
Measures minor trace gas species at high latitudes, in the altitude range 10 - 60 km (O3, CH4, NO2, N2O, H2O, CFC11, HNO3, CIONO2, N2O5, aerosols, temparature, pressure).
Full Name
Improved Limb Atmospheric Spectrometer-II
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Atmospheric chemistry 
Geometry
Occultation
Instrument Technology
Limb-scanning IR spectrometer
Sampling
Sounding
Resolution
Vertical: 1 km Temparature, aerosols, pressure: 2 km (horiz), CIONO2: 21.7 km (horiz), Others: 13 km (horiz)
Accuracy
Temperature: 0.2 K, Pressure: 1%, Aerosol: 2%, Ozone: 3 - 5%, Other trace gases: 2 - 25%
Waveband
VIS: 0.753 - 0.784 µm, MWIR - TIR: 3.0 - 5.7 µm, 6.21 - 11.76 µm, 12.78 - 12.85 µm
| NIR (~0.75 µm - ~1.3 µm) |
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
ADEOS-II - Advanced Earth Observing Satellite - II (2002 - 2003) |
| Category | Parameter |
| Aerosols | Aerosol Extinction / Backscatter (column/profile)  |
| Aerosol absorption optical depth (column/profile) |
| Atmospheric Humidity Fields | Atmospheric specific humidity (HT, LS, HS&M) |
| Atmospheric Temperature Fields | Atmospheric temperature (HT, LS, HS&M) |
| Ozone | O3 Mole Fraction |
| Trace gases (excluding ozone) | CH4 Mole Fraction |
| CFC-11 (HT, LS, HS&M) |
| CFC-12 (HT, LS, HS&M) |
| NO2 Mole Fraction |
| N2O (HT, LS, HS&M) |
| HNO3 (HT, LS, HS&M) |
| ClONO2 (HT, LS, HS&M) |