Hi, the Difference channels are post - pre event. All the other channels are post event. Please note that post event imagery alone does not capture changes.

Band Descriptions:

• Bands 1 to 4: These are Sentinel 2 Level 2 optical bands that capture visible and near-infrared light: Band 1: Red Band 2: Green Band 3: Blue Band 4: Near-Infrared (NIR)
• Bands 5 to 8: These are Sentinel-1 GRD SAR bands from the satellite's descending pass: Band 5: VV polarization (Vertical transmit, Vertical receive) Band 6: VH polarization (Vertical transmit, Horizontal receive) Band 7: Difference in VV (change over time) Band 8: Difference in VH (change over time)
• Bands 9 to 12: These are Sentinel-1 GRD SAR bands from the ascending pass: Band 9: VV polarization Band 10: VH polarization Band 11: Difference in VV Band 12: Difference in VH

Hello!

I wonder why we dont get a pre-image of Sentinel-2 as well? I strongly assume that it would bring a lot of value to the model by giving more context information. Some images show little white spots that are easily misclassified as landslides. A pre-image would likely show the very same spots and the model could be almost-sure that thats an individual landscape characteristic.