CEOS Instrument: Improved Limb Atmospheric Spectrometer-II




Instrument:ILAS-II
Agencies: MOE (Japan) [Primary]
 JAXA
Mission: ADEOS-II
Status:No longer operational
Type:Limb-scanning IR spectrometer
Description: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)
Spatial Resolution: Vertical: 1 km Temparature, aerosols, pressure: 2 km (horiz), CIONO2: 21.7 km (horiz), Others: 13 km (horiz)
Swath Width: N/A
Wavebands: VIS: 0.753 - 0.784 ?m, MWIR - TIR: 3.0 - 5.7 ?m, 6.21 - 11.76 ?m, 12.78 - 12.85 ?m
Technology: Limb-scanning IR spectrometer
Description: Spectrometer operating in MWIR and TIR with spectral resolution typically around 0.01 % required for atmospheric chemistry. Designed to provide high vertical resolution in the upper troposphere and above by scanning the Earth’s limb. Many thousands of channels. Spatial resolution typically 1-3 km vertical, 300-500 km horizontal. Applicable only in LEO.

Measurement List:

(select measurement name to view details)



CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18