Which layers are currently available?

Currently available GIS* layers are:

> Open Street Maps - a wiki (community populated) world map platform
> Open Sea Maps - Nautical map
> Open Topo Maps - Height map showing terrain elevation
> Thunderforest Landscape - Natural landmarks & forrest and wildlife reserves map
> China Satellite Imagery - Asia originated satellite data
> WindAtlas - Average wind pseeds measured at 50m, 100m, 200m

*A geographic information system (GIS) is a system designed to capture, store, manipulate, analyse, manage, and present spatial or geographical data.
source: https://en.wikipedia.org./wiki/Geographic_information_system