Post · bonfire.cafe

This is a map showing fire risk in the summer season in Liguria, in 5 discrete risk classes. It's an official map https://geoportal.regione.liguria.it/catalogo/mappe.html?typeEvent=detailFromHome&idmap=1454

The original map is a GeoTIFF with three channels for RGB colours. Querying a point will show data like (255, 153, 0) which is useless.

I did some GIS-fu with QGIS, rgb2pct and the calculator to obtain a 1-band raster where each pixel has the value corresponding to the risk class. Then I applied the Cividis colour scale.

2 media

The edited result. A map of Liguria on a white background. The area is coloured in diverging shades of blue and yellow, where the yellow areas have higher risk of fire.

The original. A map of Liguria on a white background. The area is coloured in five different colours: green, blue, orange, red and purple, where each colour shows a different fire risk class. It's quite difficult to read the colour variation as a continuous scale.

Mappe - geoportal Regione Liguria

Questa pagina permette di sfogliare le risorse presenti nel catalogo seguendo alcune classificazioni predefinite. Da qui è possibile trovare dati e metadati d’interesse, accedere al download, ai servi...

STOP OCCUPATION 🍉 S. Costa

@steko@scholar.social · 54 minutes ago

I quickly followed up with the Zonal statistics tool to gather specific info about fire risk in archaeological sites. This will help us to focus maintenance work where it's most needed, like it's 1826