ALOS-2/CIRC L1 Radiance
type: Dataset
keyword: DIF10
keyword: EARTH SCIENCE
keyword: HUMAN DIMENSIONS
keyword: SOLID EARTH
keyword: SPECTRAL/ENGINEERING
keyword: LAND SURFACE
keyword: NATURAL HAZARDS
keyword: TECTONICS
keyword: INFRARED WAVELENGTHS
keyword: SURFACE THERMAL PROPERTIES
keyword: SENSOR CHARACTERISTICS
keyword: EARTH SCIENCE>HUMAN DIMENSIONS
keyword: EARTH SCIENCE>SOLID EARTH
keyword: EARTH SCIENCE>LAND SURFACE
keyword: EARTH SCIENCE>HUMAN DIMENSIONS>NATURAL HAZARDS
keyword: EARTH SCIENCE>SOLID EARTH>TECTONICS
keyword: EARTH SCIENCE>SPECTRAL/ENGINEERING>INFRARED WAVELENGTHS
keyword: EARTH SCIENCE>LAND SURFACE>SURFACE THERMAL PROPERTIES
keyword: EARTH SCIENCE>SPECTRAL/ENGINEERING>SENSOR CHARACTERISTICS
keyword: ALOS-2
keyword: CIRC
spatial: Location
  bbox: POLYGON((-180 -90,-180 90,180 90,180 -90,-180 -90))
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description: ALOS-2/CIRC L1 Radiance is obtained by Compact Infrared Camera (CIRC) onboard ALOS-2 and produced by the Japan Aerospace Exploration Agency (JAXA). The Advanced Land Observing Satellite-2 (ALOS-2, "DAICHI-2") is Sun-synchronous sub-recurrent Orbit satellite launched on May 24, which is a follow-on mission from the ALOS "Daichi". CIRC is an infrared sensor primarily intended for detecting forest fires, which present a serious problem for the various countries of Southeast Asia, particularly considering the effects of global warming and climate change. The spatial resolution and field of view are 210 m and 128 km Ã 96 km from an altitude of 628 km in the case of ALOS-2. Main characteristic of the CIRC is also an athermal optics. The athermal optics compensates the defocus due to the temperature change by using Germanium and Chalcogenide glass which have different coefficient of thermal expansion and temperature dependence of refractive index.This dataset includes radiance data derived from Level 0 data and the radiometric correction applied. The physical quantity is W/um/sr/m^2.The provided format is GeoTIFF. The spatial resolution is about 210 m. The projection method is UTM. The current version is 21.0.
qualified attribution: Attribution
  agent: Organization
    has name: JP/JAXA/SAOC
temporal: PeriodOfTime
  start date: 2014-07-04T00:00:00.000Z
  end date: 2023-03-27T23:59:59.999Z
license: other