2004
ation
pixel
1ge.
year
Over
(Crop
9 by
rving
‚TER
ction
ISR
eter);
here).
15 to
from
ntific
very
irface
tance
Xf the
125-
rithm
nown
where
HE
ch as
r than
ations
mean
r/over
lances
is not
pixels
ains a
ers. In
lasses
ses for
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EROS
rtusati
ntartic
ramma
1999.
J. Sci.
as Inc.
p.
yuthern
nalysis
International Archives of the Photogrammetry, Remote Se
Gunn B. M. and Warren G., Geology of Victoria Land between
the Mawson and Mulock glaciers, Antartica, Bull, N.Z. Geol.
Surv., 71, 1-157, 1962.
Stern. T. A. and ten: Brink. U.. S. Flexura/ uplift of the
Transantarctic Mountains, J. Geophys. Res., 94, 10315-10330,
1989.
6. Acknowledgements
We would like to thank EOS Data gateway center (Earth
Observing System, NASA) for having supplied us the Aster
sensor image.
The Biotite and Serpentinite charts were reproduced from the
ASTER Spectral Library through the courtesy of the Jet
Propulsion Laboratory, California Institute of Technology,
Pasadena, California. Copyright € 1999, California Institute of
Technology. ALL RIGHTS RESERVED.
Tables
Table 1. Characteristics of the ASTER sensor System. Source:
Aster User Handbook, vers. 2 — Abrams et al., 2003)
Radiometric
resolution
| Subsystem | Band | Spectral
range
Spatial
resolution
(m)
VNIR l 0.52- 15 8 bit
0.60
2 0.63-
0.69
3 0.78-
0.86
SWIR 4 1.60- 30 8 bit
~
e
5 2.145-
2.185
1
6
n2 OO
Cn Cn
1
jy —
2
Un
1
oo
CA
CO
ma
WI NN
o
uen
t
UJ) ON
=
1
9
oo
NNN NINN to Dit
P
TIR 10 8.125- 90 12 bit
14 10.95-
E.
Figure Captions
Figure 1. Geologic map (Capponi et al., 1999) of the study area
Prince Albert Mountain, around the Larsen Glacier (the digital
map has been rectified in the Polar Stereographic coordinate
system, WGS 84 spheroid).
Figure 2. The ASTER sensor scene of 1/11/2000 in false colour
composition (red channel: near infrared; green channel: red;
blue channel: green) the image has been rectified in the Stereo
Polar coordinate system (WGS 84 spheroid).
Figure 3. Spectral responses of the Serpentinite (light blue) and
the Biotite (yellow). The charts came from the Jet Propulsion
Laboratory (JPL) spectral libraries.
11.65
nsing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004
Figure 4. CEM algorithm estimated Biotite concentrations:
white pixels have high values while dark pixels, low values.
Figure 4a. Absolute frequencies histogram of the fig. 4 pixel
values.
Figure 35. CEM algorithm estimated Serpentinite
concentrations: white pixels have high values while dark pixels,
low values.
Figure 5a. Absolute frequencies histogram of the fig. 5 pixel
values.
Figure 6. Three classification levels of the Biotite concentration
(see text for more details)
Figure 7. Three classification. levels of the Serpentinite
concentration (sce text for more details)
Figure 8. The image shows in pink the high Biotite and low
Serpenite areas; in violet are drawn instead the low Biotite and
high Serpentinite areas. In order to make a first classification
check, we overlaid on the pink and the violet areas two vector
layers, which were drawn on the basis of the PNRA map. The
yellow vector layer shows the Biotite areas (GHGr), while the
green one, the Serpentinite areas (GHGa).