20 Future Perspectives
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Appendix 20.2. Specifications for sensors listed in Appendix 20.1
Sensor
Mission(s)
Spectral Bands
Spatial
Revisit Swath Width
Resolution
Ca[!ab.
AATSR
Visible-NIR:
IR ocean chanAdvanced
0.555, 0.659,
nels: I km x I
Along Track
ENVISAT-I 0.865 11 m, SWIR: km Visible land 35 day
500km
Scanning
1.611 m, TIR: 3.7, channels: I km x
Radiometer
10.85,12!! m
1 km
ALT
DuelTOPEXI
Microwave: 5.3,
6-7 km along
frequency
10 days
NA
Radar
POSEIDON
13.6 GHz
track
Altimeter
S.3 GHz (CAMI-SAR
band), VV polaImage mode
ERS-I, ERS-2
rization, band30m
35 days
100 km
width 15.5 ± 0.06
MHz
AMI-SAR
S.3 GHz (C50km x SOkm at
Scatterometer ERS-l, ERS-2 band), "IV pola25km intervals
35 days
500km
mode
rization
AMSR
Microwave: 6.9,
Advanced
10.65, 18.7,23.8,
5-50 km (depen- 4 days
Microwave
ADEOSII
36.5, 50.3, 52.8
dent on frequen(S7
1450 km
Scanning
and 89 GHz
cy)
revisit)
Radiometer
Image and
Image, wave and
alternating
alternating
polarization
ASAR
polarization
modes: up to
Advanced
modes: 30mx
100km
Synthetic
ENVISAT-I
C-band
30m, Wide
35 days
Wave mode: 5
swath mode:
km
Aperture
100mx 100m
Wide swath
Radar
Global monitoand global
ring mode: I km
monitoring
x I km
modes: 400
km
60 km at
ASTER
Visible-NIR: 3
nadir, swath
Advanced
channels (0.5-0.9
VNIR: 15 m,
center is
Space-borne
11 m), SWIR: 6
stereo: 15 m
pointable
horizontally and
cross-track by
Thermal
EOS PM~l
channels (I.6-2.S
25m vertical
16 days ± 106 km for
Emission &
11 m), TIR: 5
SWIR: 20m,
SWIRand
Reflection
channels (8-12 11
TIR: 90m
TIRand±
Radiometer
m)
314 km for
VNIR