1. Description

From :

> … The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth.
>
> …
> SRTM is an international project spearheaded by the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA).

Detailed info on data products at . It lists:

• Level-2 Terrain Height Data Sets (Digital Topographic Maps)
• Random Height Error Data Sets
• Strip Orthorectified Image Data Sets
• Systematic Height Error Model
• Final Verification Report & Global Height Error Model

1. Openness: OPEN

• Provided by US Government Federal Agency so is public domain.
• Access: see tags.

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