At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54...

澳大利亚2025-10-17 更新10

NASA Shuttle Radar Topography Mission (SRTM3) Global 3 arc-second - National Geospatial Data Asset (NGDA)

数字高程模型

地形测绘

The first release of Shuttle Radar Topography Mission (SRTM) data was provided in 1-degree digital elevation model (DEM) tiles from the USGS 2003. The data was released continent by continent, as and

DataONE2017-03-29 更新90

Norfolk Island 1:25 000 Scale Topographic Map

地理信息

地形测绘

A contoured (interval 20m) general reference map of the island showing settlement, mining areas, railways, roads and tracks of Norfolk Islands.

澳大利亚2025-10-17 更新10