Chapter 9: Methodologies for defining habitats 

Chapter 11: Mapping coral reefs and macroalgae - contextual editing

Chapter 11: Mapping coral reefs and macroalgae - coarse descriptive resolution

Plate 12

Figure 11.3 The principal physical environments
of the Caicos Bank. Colour composite image
(XS1 in blue, XS2 in green, XS3 in red) derived
from full SPOT XS scene.
Figure 11.4 Broadscale habitat map (4 classes only) based on a
supervised classification of the whole Caicos Bank using Landsat
TM imagery that has been subject to water column correction and
contextual editing. Even at this coarse level of habitat
discrimination the best overall accuracy which can be achieved is
only 73%. For SPOT XS an overall accuracy of 67% was
achieved for the same level of processing.
Map derived from Landsat TM imagery
Projection: UTM grid zone 19
Spheroid: Clarke 1886
Datum: NAD27 (Bahamas)

Chapter 9: Methodologies for defining habitats

Chapter 11: Mapping coral reefs and macroalgae - contextual editing

Chapter 11: Mapping coral reefs and macroalgae - coarse descriptive resolution