ILAS, the Improved Limb Atmospheric Spectrometer, on the Advanced Earth Observing Satellite

Makoto SUZUKI  Akiyoshi MATSUZAKI  Takeo ISHIGAKI  Norio KIMURA  Nobuhiro ARAKI  Tatsuya YOKOTA  Yasuhiro SASANO  

IEICE TRANSACTIONS on Communications   Vol.E78-B   No.12   pp.1560-1570
Publication Date: 1995/12/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Satellite Remote Sensing)
remote sensing,  ozone layer,  grating spectrometer,  solar occultation,  

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Overview of Improved Limb Atmospheric Spectrometer (ILAS) instrument design, band selection studies, and operation plan is described. The ILAS is a solar occultation instrument onboard ADEOS spacecraft with two grating spectrometers: one is for measurement for O3, HNO3, NO2, N2O, H2O, CH4 CFC11 and CFC12 in the infrared band (850-1610cm-1, 11.76µm-6.21m), and another is for aerosols, temperature and air density measurement in the visible band (753-784nm, O2 atmospheric A band). The ILAS will observe the ozone layer over high-latitudes (N55-70, S63-87) regions with a high vertical resolution (2km) for a period of 3 years after launch in 1996.