Mixed Lineage

Slides of legends of paper maps

• Accuracy statements
  • specifically, Australian topographic series with specific figure for positional accuracy for each sheet.
• Reliability Diagrams
  • Good, Fair, Photography (and other codings)
• Source Data Diagrams
  • on charts
  • on geological maps (citation to geological publications, maps)

Standards: treatment of mixed source

SDTS: mixed lineage "must" be reported (suggests either lineage code on each feature (item?) or "quality overlays".

VPF: implementation of data quality tables and overlays that can be attached to different levels from database down to each object.

Status Maps

One element of lineage for large multi-sheet projects done over a long time.

Getting at Geography of Geographic Information...

Version of 1 February 2004