ILAS-II scientific results

The Improved Limb Atmospheric Spectrometer (ILAS)-II is an instrument on board Advanced Earth Observing Satellite (ADEOS)-II to measure various gases and aerosols in the stratospheric ozone layer with the solar occultation technique. ILAS-II conducted its measurements over the northern and the southern high latitude regions from April 2, 2003 to October 24, 2003 and provided a data set for monitoring and scientific studies on the stratospheric ozone layer. The present paper briefly describes the instrument specifications and performance on the orbit and shows some preliminary scientific analysis results. Keywords-ozone layer, stratosphere, satellite, ILAS-II