2026-01-14

Normalized Difference B04-B08

📐 10m/Pixel ☁️ 98.2% Contamination 🛰️ S2C
True Color Image (TCI)
Spectral Index Raster

🧮 Data Processing Explanation

This visualization shows a spectral index analysis derived from Sentinel-2 satellite data:

Spectral indices are calculated using the normalized difference formula on Sentinel-2 multispectral bands:

$$\text{Index} = \frac{ B04 - B08 }{ B04 + B08 + 0.00001}$$

Processing Pipeline

  • Cloud Masking: OmniCloudMask identifies cloud and shadow pixels, which are excluded from calculations
  • Spectral Calculation: Normalized difference computed server-side in PostgreSQL on valid (non-masked) pixels only
  • Geographic Clipping: Results clipped to Gaza Strip boundary (EPSG:32636 UTM Zone 36N)
  • Colorization: Values mapped to black-to-orange colormap; masked areas shown in neon blue

Color Mapping

  • Black → Orange Valid spectral index values
  • #0080FF Cloud/shadow masked areas
  • Transparent Areas outside Gaza

🛰️ Product Information & Attribution

Product ID S2C_MSIL2A_20260114T082311_N0511_R121_T36RXV_20260114T111810
Sensing Time 2026-01-14 08:23:11 UTC
Orbit 121
Tile ID T36RXV
Processing Baseline N051
Credit Line Contains modified Copernicus Sentinel data 2026
Data Source https://dataspace.copernicus.eu/
Modifications Derived spectral index product calculated from Sentinel-2 MSIL2A bands [B04, B08] using normalized difference formula. Original raster data processed through server-side PostgreSQL functions and cropped to Gaza Strip AOI.