Terrain

Elevation, imagery, buildings, map overlays and nautical charts.

Layers

Layer	What you get
Elevation	The shape of land and seabed.
Imagery	The surface texture, from satellite or aerial photography.
Buildings	3D buildings.
Map overlays	Your own polygon data, shown as coloured layers on the terrain.
Nautical charts	Nautical charts shown with the terrain.
Looks	Switch between photorealistic, topographic and nautical looks for the same place.

Terrain streams from the cloud as tiles at many zoom levels. Data sources, including the land-sea coastline, blend without hard edges.

Level	Detail
Global	Land elevation of about 30 m, seabed depths and satellite imagery, almost everywhere.
Regional	Aerial imagery down to about 11-15 cm per pixel and terrain to 1 m in selected areas.
Your site	Your own data, at the detail you have.

You provide	What we do
LiDAR or elevation models	We process the data and publish it into Sandbox.
Aerial or drone imagery	We process the imagery and publish it into Sandbox.
Multibeam or satellite-derived bathymetry	We process the seabed data and publish it into Sandbox.
Building footprints or models	We process them and publish them into Sandbox.
GIS polygons	We process them and publish them into Sandbox as map overlays.
Anything else your project needs	We can implement it.

Imagery to about 11 cm, 1 m terrain with seabed, and a nautical chart.

1 m terrain, 4 cm aerial imagery, and seabed refined from about 300 m to about 10 m in shallow water.

Coastline blending for sites with little local data.