Environmental Engineering Reference
In-Depth Information
P232
(a)
0 °
R66
P231
RondÔnia
R67
1
Brazil
P230
R68
2
23.5 ° S
P33/R33
20 km
(b)
35 km
FIGURE 8.1 Location of two case studies. (a) Settlements in Rondonia, Brazil, in the Southwest Brazilian Amazon (adapted
from Powell and Roberts, 2008), two are highlighted in this chapter; and (b) the southern portion of Denver, Colorado.
a. Landsat TM “view”
b. Reflectance
recorded by sensor
c. Endmember spectra
d. Proportion of
pixel modeled by
each endmember
(“basic components”)
0.6
vegetation
0.6
0.4
37%
27%
0.4
0.2
30 m
0.2
0
450
950
1450
1950
0
0.6
450
950
1450
1950
impervious
36%
0.4
4%
0.2
21%
0.6
0
450
950
1450
1950
0.4
0.6
0.2
0.4
0
75%
450
950
1450
1950
0.2
bare soil
0
450
950
1450
1950
FIGURE 8.2 Conceptual overview of spectral mixture analysis (SMA).
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