192
F. CARSEY, R. HARDING, C. WALES
Table 2. ASF SAR Products in the RADARSAT era
Image product
Incidence
Swath
Full resolutionl
Low resolutionl
angles
pixel spacing
pixel spacing
ERS-l and -2 AMI SAR
19-26"
100km
12m/12.5 m
150m/l00 m
RADARSAT
Standard beams
19.6-27.1 "
100km
25 m1l2.5 m
150 mil 00 m
2
24.2-31.3"
3
30.5-36.9"
4
33.4-39.7"
5
36.5-42.2"
6
41.5-46.6"
7
44.9-49.4"
Wide-swath beams
WI
20.0-31.3"
120km
35 m/25m
300 m1200m
W2
30.8-39.6"
150km
W3
39.2-45.2"
150km
High incidence beams
EHI
48.9-52.2"
75km
25m/12.5 m
150 mil 00 m
EH2
50.4-53.7"
EH3
51.8-54.8"
EH4
54.5-56.9"
EH5
55.9-58.3"
EH6
57.3-59.5"
ScanSAR beams
1 (Wl,2,3,S7)
20.0-49.4"
500km
50 m/l00 m
600 m/400 m
2 (Wl,2,S5,6)
20.0-46.7"
500km
3 (Wl,2)
20.0-39.5"
300km
4 (W2,S5,6)
30.8-46.7"
500km
Low-incidence beam'
(Deferred)
Ell
9.9-22.8"
170km
50m/12.5 m
300 m/200 m
Fine-resolution beams'
37-49"
45km
10m/6.25 m
a Deferred images available from RADARSAT International Inc. but not from ASF at this time
The two flight missions on the right-hand side of Table 1 are future missions. The role
of the USA in these missions is not determined as of this writing, but there are good
reasons for negotiating to supply data from these SAR instruments to US scientific and
operational users, and ASF will be joining with representatives of the user community
in seeking access to these data.