Level-1 (TOA) vs. Level-2 (BOA): Picking the Right Input for Analytics
2025-08-17
What top-of-atmosphere and bottom-of-atmosphere really mean, why L2A is computed from L1C, and when ML or analytics should use L1 vs L2.
Tag: Sen2Cor
Articles about Sen2Cor across Sentinel-2, SAR+optical fusion, indices, and EO workflows.
Cloud Masking: Why a Binary Choice Breaks a Continuous Problem
2025-08-09
Cloud masking for satellite imagery is not binary. Cirrus, stratocumulus, haze, aerosol, snow, bright sand, sunglint, and cloud shadows require probabilistic masks and careful thresholds.
Sentinel-2 Bands at Level-1 and Level-2: Wavelengths, Uses, and Comparisons
2025-08-07
A practical guide to Sentinel-2 MSI bands at Level-1C and Level-2A, what each band is good for, and how they compare with Landsat, PlanetScope, and EarthDaily class sensors.
Harmonization vs Data Fusion: Making Multi-Sensor Imagery Agree and Work Together
2025-08-05
Clear definitions, methods, and tradeoffs for multi-sensor harmonization, which makes sources comparable, and data fusion, which combines them into one estimate.