Terrain comparison - Vulcano

**Island of Vulcano, Italy. ** Comparison between terrain model from 30m SRTM data, and [model from photogrammetry using 3 black and white aerial photos from the 1950s](https://skfb.ly/6TuQH). The old aerial photos result in a model with less coverage and lower-quality texture, but higher 3D resolution. This can be easily seen by turning "matcap" on in the model inspector, and comparing the obsidian flow between the two models (annotations 1 and 2). The raw model from aerial photos also has a vertical exaggeration of about 2x, therefore 2x has been used for the SRTM DEM as well. Source of model from SRTM: * Generator: [DEM Net Elevation API](https://elevationapi.com) * Digital Elevation Model: [SRTM_GL1 OpenTopography](https://opentopography.org/) * Imagery: [Esri World Imagery](https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer)