EARTH SCIENCE>TERRESTRIAL HYDROSPHERE>SNOW/ICE
GCOM-C/SGLI L2 Statistics-Snow and Ice cover extent (8-days, 1km) dataset is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). GCOM-C is Sun-synchronous sub-recurrent Orbit satellite launched on December 23, 2017, which mounts SGLI and conducts long-term global observations of geophysical variables related to the global climate system across 28 items including aerosol and vegetation over 4 areas of atmosphere, land, ocean, and cryosphere. The data will be used to contribute to higher accuracy of global warming prediction. The SGLI has swath of 1150 km in the visible band and 1400 km in the infrared band. Level 2 statistics products are using the Level2 product of land and cryosphere (Daily, Tile, 250 m or 1 km resolution) as input, it calculates and outputs the temporal statistics of 8-days or 1-month. The region definition and spatial resolutions of the output product are kept those of input data.This dataset includes SICE_Nsnow1: Number of snow or ice cover, SICE_Nsnow2: Number of snow with vegetation or bare ice, SICE_Nsnow3: Number of melting snow. Their physical quantity unit is dimensionless. Using the Level2 product as input, it calculates and outputs the temporal statistics of 8-days. The region definition and spatial resolutions of the output product are kept those of input data.The physical quantity unit is micrometer. The statistics values stored to product are average (AVE), root-mean-square (RMS), maximum value (MAX), minimum value (MIN), number of input data (Ninput), number of used data (Nused), date of observation (Date), and quality flag (QA_flag).The provided format is HDF5. The spatial resolution is 1 km. The statistical period is 8 days also 1 month is available. The projection method is EQA. The generation unit is Tile. The current version of the product is Version 3. The Version 2 is also available.
JP/JAXA/SAOC
GCOM-C/SGLI L2 Statistics-Snow and Ice Cover Extent (8-Days,1km) 2021