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Display terrain (elevation, geometric height, DTM): mountains, etc.
Visualize 3D terrain instead of the sphere only.
Note: this involves preparing and hosting of a separate tileset which will represent the geometric height by the values of pixels (greyscale). Triangles in the WebGL Earth can be then adjusted by the relevant height (pixel value) loaded from the texture (tile) at given lat/lon position.
Possible datasets to use:
- GTOPO30: global digital elevation model (DEM) ~ 1km x 1km - http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/gtopo30_info
- SRTM3: Shuttle Radar Topography Mission ~ 90m x 90m - http://www2.jpl.nasa.gov/srtm/
- CGIAR: 90m
http://www.cgiar-csi.org/data/elevation/item/45-srtm-90m-digital-elevation-database-v41
http://developmentseed.org/blog/2010/may/04/srtm-data-amazons-cloud
- ASTER GDEM: Aster Global Digital Elevation Model ~ 30m x 30m…74 votes
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