Image Processing Reference
In-Depth Information
Fig. 6.8
A three-part role for remote sensing of urban ecosystems (Ridd
1995
)
On the basis of morphological character - that is, patterns of V-I-S composition,
many biophysical analyses may proceed. Patterns of
energy
flux and consequent air
temperature are based on varying types of surface composition. The urban heat
island (UHI) effect results from the dominance of impervious surfaces, coupled
with anthropogenic heat in the city center. Air quality models relate to cover com-
position, along with traffic patterns on transportation corridors that may be mapped
with V-I-S data. The dynamics of
moisture
in the urban ecosystem are driven by
variation in morphological composition which can be determined by V-I-S data
(see Table
6.1
). Models of runoff, evapotranspiration, and moisture uptake from the
soil are supported by V-I-S data.
Human system studies also benefit from morphological analysis based on
V-I-S composition. Pavement and structure patterns relate to development and
