Concept information
Preferred term
ILAS
Definition
- The Improved Limb Atmospheric Spectrometer (ILAS) is provided by the Environment Agency (EA) of Japan for the ADvanced Earth Observation Satellite (ADEOS) mission. The ILAS is designed to measure the variability of the concentration of ozone and other trace constituents (such as HNO3 and H2O) in the stratosphere and to monitor ozone layer dynamics. The ILAS system consists of two observation packages: One is a 12 cm telescope containing 44 pyroelectric detectors linearly arrayed for observations in the infrared region of the spectrum (6.0-6.8, 7.3-11.8 microns). The other is a 3 cm telescope consisting of a photodiode array for observations in the visible region (0.753-0.784 microns). Sunrise and sunset observations will be made at 2 km resolution over the 10-60 km vertical range. For more information see: "http://www-ilas.nies.go.jp/" Group: Instrument_Details Entry_ID: ILAS Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Spectrometers/Radiometers Instrument_Subtype: Spectrometers Short_Name: ILAS Long_Name: Improved Limb Atmospheric Spectrometer End_Group Group: Associated_Platforms Short_Name: ADEOS-I End_Group End_Group (en)
Broader concept
- Spectrometers (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/b5f54e44-f6fc-4abc-afb2-b098f8ef061c
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