Geoscience Reference
In-Depth Information
Tab l e A . 6 .
Description of the classes of the spectral brightness coefficients (SBC) of the
ground surface
∗
=
=
=
Class 15.0
Snow surface. N
(60/62/65). Observation to nadir,
and from nadir to 45
◦
at azimuth angles 0
◦
,45
◦
,90
◦
, 135°, 180°. Variation of
weather conditions: clear sky, overcast sky.
41, H
(200/354/500), Z
=
=
Class 16.0
Sand surface (dunes of the Kara-Kum desert). N
63, H
(500/500/500),
=
Z
(52/54/62). Observation to nadir. Weather conditions: clear sky.
=
=
=
Class 17.0
Tillage (fields of the black soil). N
(34/50/72).
Observation to nadir. Variation of weather conditions: clear sky, transparent
cloudiness.
134, H
(100/354/500), Z
=
=
=
Class 18.0
Field with weak green young growth. N
6, H
(500/500/500), Z
(31/32/36).
Observation to nadir. Weather conditions: transparent cloudiness.
=
=
=
Class 19.0
Field with green young growth. N
9, H
(100/144/200), Z
(41/46/50). Ob-
servation to nadir Weather conditions: clear sky.
=
Class 20.0
Fields with continuous green grass cover (without blossom). N
26,
=
=
(28/45/58). Observation to nadir. Variation of weather
conditions: clear sky, transparent cloudiness.
Class 21.0 Moss marsh of brownish-green color. N
H
(100/438/500), Z
=
=
=
89, H
(500/500/500), Z
(37/41/54). Observation to nadir at azimuthal angles from 0
◦
till 90
◦
,view-
ing angles from 15
◦
till 45
◦
.Weatherconditions:clearsky.
Class 21.1 Dependence of SBC upon the viewing direction for class 21: at azimuth angle
135
◦
viewing angles from 15
◦
to 45
◦
; at azimuth angle 180
◦
viewing angles
=
=
=
from 15
◦
to 30
◦
.N
(37/38/39).
Class 21.2 Dependence of SBC upon the viewing direction for class 21 (direction is oppo-
site to the Sun): at azimuth angle 180
◦
viewing angles from 30
◦
to 45
◦
.N
5, H
(500/500/500), Z
=
6,
=
=
H
(500/500/500), Z
(37/38/39).
=
=
Class 22.0
Fields with sunflower (blossom period, yellowish-green color). N
46, H
(30/39/57). Observation at azimuth angle 0
◦
.Theviewing
angles from nadir to 45
◦
.Weatherconditions:clearsky.
=
(200/200/200), Z
=
Class 23.0
Fields with maize (period of the corn ripening, yellowish-green color). N
6,
=
=
(37/40/47). Observation at azimuth angle 0
◦
from nadir
to 45
◦
.Weatherconditions:clearsky.
H
(200/200/200), Z
=
=
=
Class 24.0
Ripe grain crop (wheat, barley). N
(25/38/50).
Observation: at azimuth angle 0
◦
viewing angles from nadir to 45
◦
.Weather
conditions: clear sky.
57, H
(200/200/200), Z
=
=
Class 25.0
Stubble (fields after harvesting of grain crop). N
14, H
(200/200/200),
(31/40/44). Observation: at azimuth angle 0
◦
the viewing angles fromnadir
to 45
◦
.Weatherconditions:clearsky.
=
Z
=
=
=
Class 26.0
Asphalt road (gray color, dry). N
(34/44/52). Observa-
tion to nadir. Weather conditions: clear sky, transparent cloudiness.
9, H
(50/50/50), Z
=
=
=
Class 27.0
Concrete road (clean, light gray color). N
3, H
(50/50/50), Z
(31/31/32).
Observation to nadir. Weather conditions: clear sky.
∗
There is an archive of spectra for every class (in a special binary code)
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