June 2014
Intermediate to advanced
576 pages
16h 43m
English
book
Image Analysis, Classification and Change Detection in Remote Sensing, 3rd Edition
by Morton J. Canty
Content preview from Image Analysis, Classification and Change Detection in Remote Sensing, 3rd Edition
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Topographic correction 209
FIGURE 5.26
Slope image calculated w ith the DEM of Figure 5.2 4.
FIGURE 5.27
Aspect image calculated with the DEM of Figure 5.24.
210 Image Enhancement and Correction
■
✲
▼
✖✕
✗✔
✚
✚
✕
②
s
✾
❃
⑥
✼
②
③
✴
θ
z
γ
i
θ
p
90
o
φ
a
φ
o
Normal to terrain
North
✌
✛
FIGURE 5.28
Angles involved in computa tion of lo cal solar incidence (adapted from Riano
et al. (2003)): θ
z
= solar zenith angle, φ
a
= solar azimuth, θ
p
= slope, φ
o
=
aspect, γ
i
= local solar incidence ang le.
FIGURE 5.29
Cosine of solar incide nc e ang le γ
i
stretched across the DEM of Figure
5.24, solar zenith ...
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