Improved Limb Atmospheric Spectrometer (ILAS) for polar stratospheric trace gas measurementsThe Improved Limb Atmospheric Spectrometer (ILAS) is a grating spectrometer designed to measure vertical profiles of high latitude stratospheric constituents in a solar occultation mode. ILAS measurement gases are ozone (03), methane (CH4), nitrous oxide (N2O), nitric acid (HNO3), water vapor (H2O), nitrogen dioxide (NO2), and CFC-11 using an IR channel. Temperature, pressure, and aerosol are also measured using a visible channel. The IR channel consists of 44 detector elements which cover the spectral range 6.2 to 11.8 microns, and the visible channel is composed of 1024 pixels that cover 753 to 784 nm. ILAS will be installed on the Advanced Earth Observing Satellite (ADEOS) which will be launched in 1995. Instrument design data are outlined.
Document ID
19920052420
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yokota, Tatsuya (NASA Langley Research Center Hampton, VA, United States)
Suzuki, Makoto (NASA Langley Research Center Hampton, VA, United States)
Sasano, Yasuhiro (National Institute for Environmental Studies Tsukuba, Japan)
Matsuzaki, Akiyoshi (Institute of Space and Aeronautical Science Sagamihara, Japan)
Park, Jae H. (NASA Langley Research Center Hampton, VA, United States)
Asada, Kazuya (Japan Environment Agency Tokyo, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Spacecraft Instrumentation
Meeting Information
Meeting: IGARSS ''91: Annual International Geoscience and Remote Sensing Symposium