Table 1.1
Summary table listing sensor types and associated spatial, spectral, radiometric and temporal resolution
Example sensors
Spatial scale
Spectral resolution
Radiometric resolution
Temporal resolution
Aerial photography
Pan
Colour stereo
CIR stereo
Extremely fine to fine:
(local) 1:5,000–1:25,000
Extent:
1.3–33 km
2
per photo
GRE:
0.05–20 m
[100 nm
Low -broad band:
- Visible
- Colour
- Green, Red, NIR
High:
[
10 bit (1,024 levels)
User controlled:
(subject to weather and aircraft availability)
Airborne multispectral
SpecTerra
DMSV
Daedalus-1268
ADAR
Extremely fine to fine:
(local)
Extent:
100 km
2
GRE:
0.5–10 m
[100 nm
Medium range:
350–2,500 nm
Total bands:
3–20
Medium:
[8
bit
(256 levels)
User controlled:
(subject to weather and aircraft availability)
Airborne hyperspectral
CASI
HyMap
AVIRIS
AISA
Extremely fine to fine:
(local)
Extent:
100 km
2
GRE:
0.5–10 m
5–50 nm
High range:
350–2500 nm
Total bands:
[20
High:
[12
bit
(4,096 levels)
User controlled:
(subject to weather and aircraft availability)
High spatial resolution multispectral
QuickBird 2
Ikonos
Rapid Eye
GeoEye-1
Worldview-1, -2
Extremely fine:
(local)
Extent:
[25
km
2
GRE:
0.5–1 m (pan)
1.5–5 m (multi)
[100 nm
Medium range:
400–1,000 nm
Total bands:
1–8
High:
11–12 bit
(2,048–4,096 levels)
Programmable:
1–3 day repeat
(subject to weather)
(continued)
1 Visible and Infrared Overview
7