2.3.7 Dams Vs Vegetation Example 2

Location of Example: 148°41'09" East, 35°10'57" South,
Distinctive Characteristics:
  • Dams can be differentiated from vegetation on thematic imagery by their blue signature compared with the red signature of the vegetation.
  • Figure shows two dams near a group of dark green vegetation. Vegetation can often be mistaken for a dam when it is this dark green colour and in an oval shape. Both the dams and the vegetation have unsealed tracks near them providing access.
  • Where imagery is course compare existing band signatures between known features and unknown new features to assist in interpretation between vegtation and water.
Regional Considerations:
Figure: Representation of Vegetation.

Figure: Orthophotography 50cm RGB=123 Figure: SPOT 2.5m RGB=123

Topic contact: mapfeedback@ga.gov.au Last updated: January 20, 2012