A hierarchical ML benchmark for Sentinels, with three task levels covering all major Sentinel missions.

- level 1: preprocessing
  - [x] S2 cloud segmentation
  - [x] S3 cloud segmentation
- level 2: base application
  - single label LULC classification
    - [x] S1 EuroSAT-SAR
    - [x] S2 EuroSAT-MS
  - multi label LULC classification
    - [x] S1 BigEarthNet-v2-SAR
    - [x] S2 BigEarthNet-v2-MS
    - [x] S3 LC100
  - dense LULC segmentation
    - [x] S1 DFC2020-SAR
    - [x] S2 DFC2020-MS
    - [x] S3 LC100
- level 3: specialized application
  - [ ] S1 flood segmentation
  - [x] S2 local climate zone classification
  - [ ] S3 biomass regression
  - S5P air quality regression
    - [x] NO2
    - [x] O3