2.1. Data and tools
Multi-temporal satellite data withmediumspatial resolution is very
suitable in urban sprawl phenomena evaluation. Data adopted in this
case study is an image acquired by ASTER sensor on August 24, 2007
(source: http://glovis.usgs.gov); additional details can be found in
Abrams, 2000, on EOS-TERRA platform (http://asterweb.jpl.nasa.gov/).
ASTER captures data at 15mspatial resolution in 14 bands, fromthe visible
to the thermal infrared wavelengths (Table 1).