SCL
The Sentinel-2 Level-2A (L2A) processing includes a Scene Classification Layer (SCL). The band is generated at 20m spatial resolution alongside the L2-A products. Regarding the Sentinel-2 BDC data cubes, this band is resampled (through nearest neighbor interpolation) to the same spatial resolution of the cube.
BDC uses SCL to generate cloud masks for its Sentinel-2 Image Collections, while for it Data Cubes the SCL band is generated by compositing the existent Image Collection SCL bands. The following table demonstrates each class pixel value:
SCL |
|
|---|---|
Class |
Pixel value |
No Data |
0 |
Satured Or Defective |
1 |
Dark Area Pixels |
2 |
Cloud Shadows |
3 |
Vegetation |
4 |
Not Vegetated |
5 |
Water |
6 |
Unclassified |
7 |
Cloud Medium Probability |
8 |
Cloud High Probability |
9 |
Thin Cirrus |
10 |
Snow |
11 |