Zoom in to reveal the individual trees.

Public street and park trees from the City of Salzburg tree register. Crown size from the BEV airborne laser scan where measurable. Private gardens are not included.

Where trees or woody vegetation grow, from satellite imagery (Copernicus, 5 m, 2021 data). Covers all of Austria, including areas without a tree register. Shrubs, orchards and vineyards count as well.

Proximity to rivers, ponds and canals (OSM), weighted by size. Dark = lots of cooling water nearby. Water tempers the heat like trees. Empty areas: no water nearby.

• heat island, Gründerzeit
• industry, strongly heated
• perimeter blocks, moderately overheated
• garden city
• urban fringe, slightly overheated
• slopes, parks (cool)
• cold side valleys

Official climatope map of the City of Graz (urban climate analysis): every area carries its climatope class, from the urban heat island (dark red) through perimeter blocks and garden city (orange, yellow) to slopes and parks (green) and cold side valleys (blue). Tap a spot to see its official class. Data source: City of Graz – data.graz.gv.at (CC BY 4.0).