Mostra la percentuale di copertura del suolo impermeabile (sigillato) per pixel, come asfalto, cemento ed edifici. Si basa sul mosaico globale delle superfici impermeabili a 30m di Resource Watch (dataset CIT039, anno di riferimento 2015) distribuito tramite Google Earth Engine. I valori vanno da 0% (suolo del tutto permeabile e naturale) a 100% (suolo completamente sigillato); la scala di colore passa dal verde per il suolo non sigillato al grigio per il suolo interamente sigillato.
This layer quantifies soil sealing as the percentage of impervious surface cover per pixel. Impervious surfaces (asphalt, concrete, roofs and other artificial materials) prevent water infiltration, increase surface runoff and contribute to the urban heat island effect. The map helps identify the degree of urbanisation and land take within a monitored area.
| Code | Provider | Resolution | Year |
|---|---|---|---|
| WRD_CIT039_01 | Resource Watch (via Google Earth Engine) | 30 m | 2015 |
Method: The GEE asset projects/resource-watch-gee/cit_039_impervious_surfaces_30m_mosaic (band b1) is clipped to the area of interest. The source band is byte-encoded (0-255); it is rescaled by dividing by 2.55 to obtain a true 0-100% impervious-cover raster, then reprojected to Web Mercator at 30 m. Per-area statistics (minimum, maximum and mean percentage) are computed over the valid pixels.