ADEOS-II/GLI L2 Snow Grain and Impurities
type: Dataset
keyword: DIF10
keyword: EARTH SCIENCE
keyword: CRYOSPHERE
keyword: ATMOSPHERE
keyword: SNOW/ICE
keyword: PRECIPITATION
keyword: EARTH SCIENCE>CRYOSPHERE
keyword: EARTH SCIENCE>ATMOSPHERE
keyword: EARTH SCIENCE>TERRESTRIAL HYDROSPHERE>SNOW/ICE
keyword: EARTH SCIENCE>ATMOSPHERE>PRECIPITATION
keyword: ADEOS-II
keyword: GLI
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description: ADEOS-II/GLI L2 Snow Grain and Impurities is obtained from the GLI (Global-Imager) sensor onboard ADEOS-II and produced by the Japan Aerospace Exploration Agency (JAXA). Global environment change has become a worldwide concern in recent years. In order to clarify these environmental changes, the Advanced Earth Observing Satellite (ADEOS-II, renamed "Midori II" after launch) has been developed for the purpose of monitoring the Earth environment using remote sensing technology from space. Midori II carries mission instruments that are particularly dedicated to clarify the water energy cycle and the carbon cycle, and is expected to be utilized for international climate change research programs. GLI an optical sensor that observes the reflected solar radiation from the Earth's surface, including land, oceans and clouds and/or infrared radiation with a multi-channel system for measuring the biological content. The SGLI has a swath of 1600 km. This product includes snow grain size retrieved with 865nm and 1640nm band, Snow impurities as soot, Snow surface temperature, Surface classification flag.Snow grain size retrieved with 865nm is using GLI channels 5 (0.46 Î¼m) and 19 (0.865 Î¼m), is based on the principle that the reflectance of snow is known to be dependent on snow grain size in the near infra-red (NIR) range and pollution in the visible range. It can be applied at high latitude (polar) as well as mid-latitude regions. The physical quantity is micro meter.Snow grain size retrieved with 1640nm is using GLI channel 28 (1.64 Î¼m) independently to retrieve snow grain size at very top surface. The physical quantity is micro meter. Snow impurities applies lookup tables have been constructed by using atmospheric optical properties obtained from MODTRAN in conjunction with the DISORT radiative transfer code.The bi-directional reflectance of snow is taken into account. In the lookup tables the radiances that would be measured by the satellite instrument are simulated as a f…
qualified attribution: Attribution
  agent: Organization
    has name: JP/JAXA/SAOC
temporal: PeriodOfTime
  start date: 2003-01-24T00:00:00.000Z
  end date: 2003-10-25T23:59:59.999Z
license: other