GCOM-C/SGLI L2 Statistics-Leaf Area Index (LAI) (1-Month,250m)

The region definition and spatial resolutions of the output product are kept those of input data. This dataset includes LAI: Leaf Area Index. The physical quantity unit is dimensionless.To retrieve LAI, the processing algorithm generates a lookup table (LUT) indicating the relationship between LAI, FAPAR, land surface reflectance and crown reflectance using FLiES that performs 3-dimensional radiative transfer simulations, in relation to arbitrary solar zenith angle, satellite zenith angle and relative azimuth angle.

The SGLI atmospherically collected land surface reflectance (RSRF) data and geometry data (solar zenith angle, solar azimuth angle, satellite zenith angle and satellite azimuth angle) are used as inputs. The past 7 days of SGLI data are also used to get the data for multi angle direction.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 250 m. The statistical period is 1 month also 8 days statistics 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