Cocos Islands Contours 0.5m - 2011

**Lineage:** Contours were generated from the LiDAR digital elevation model (DEM) using the freeware GIS package Quantum GIS. When compared to a sample area generated from the same data but using ArcMap, the contours were of equal or better quality. **Positional Accuracy:** The contours generated from the DEM will replicate any inaccuracies of the DEM. As a guide, the DEM data is vertically accurate to 15cm and horizontally accurate to 30cm. **Attribute Accuracy:** Not Relevant [Disclaimer]( https://www.infrastructure.gov.au/utilities/disclaimer.aspx)