1. Stand Structure in Terrestrial Ecosystems
Landscape Scale
AVIRIS: June 14, 1996
0.7 . - - - - - - - - - - - - - - - - - ,
0.6
0.5
. .
u
~ 0.4
u
~ 0.3
. .
II: 0.2
0.1
Deciduous Broadleaf
o~-=-..!...---..I....--..J...::---.:::I
400
900
1400
1900
2400
Wavelength (nm)
3X
1663, 828, 675 nm : RGB
2 km
0.7 .------....,.....----------,
0.6
0.5
.,
u
~ 0.4
u
~ 0.3
.,
II: 0.2
0.1
o ~~----~---~--~
400
900
1400
1900
2400
Wavelength (nm)
15
FIGURE 1.3. AVIRIS image acquired on June 14, 1996, over the Wind River Canopy Crane Research Facility (Carson,
Washington). The frame on the upper right shows a false color composite with 1663, 828, and 657 nm displayed as
red, green, and blue, respectively. In this rendition, vegetation is green and bare soil and slash are magenta. Oldgrowth forest is distinguished from second-growth forest and broad1eaf plants by low reflectance due to shadowing.
The frame on the lower left is 3 X blowup centered over the T.T. Munger Research Natural Area. Old growth is
distinguished from all other landcover types by its heterogeneity. In forest types, the highest reflectance occurs in
the deciduous broadleaf trees, with second growth mixed hemlock and Douglas fir having intermediate reflectance
between old-growth and broadleaf trees. Reflectance differences among these forest types are a combination of
architecturally derived shadows and the different optical properties of leaves and needles. Nonforested landcover
includes a clover field and clearcuts. Note, while visible reflectance tends to be lower in canopies than at leaf scales,
NIR reflectance can be higher, as is shown by the clover field. Associated spectra for all five landcover types are
shown. (See color plate.)