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THIS LEVEL
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UNDER THIS LEVEL
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Useful
Photogrammetric Values
|
This
table should be used as a guide only. No responsibility is accepted for errors or inconsistencies in the included
data. |
| Scale
of Photography |
Photo
Gain (metres) |
Photo
Area (km2) |
Wide
Angle
Focal Length = 152.4mm (6") |
Super
Wide Angle
Focal Length = 88.9mm (3½") |
Horizontal
Accuracy Stand. Dev. (metres) |
| Flying
Height (metres) |
Vertical |
Flying
Height (metres) |
Vertical |
| Accuracy
Stand. Dev. (metres) |
Contour
Interval (metres) |
Accuracy
Stand. Dev. (metres) |
Contour
Interval (metres) |
|
1 : 1,000
|
230 |
0.0523 |
150 |
0.01
- 0.03 |
0.1 |
|
0.02
- 0.03 |
| 1
: 2,000 |
455 |
0.209 |
305 |
0.02
- 0.05 |
0.2 |
0.03
- 0.06 |
| 1
: 3,000 |
685 |
0.470 |
455 |
0.03
- 0.07 |
0.25 |
0.05
- 0.10 |
| 1
: 4,000 |
915 |
0.836 |
610 |
0.04
- 0.09 |
0.5 |
0.06
- 0.12 |
| 1
: 5,000 |
1145 |
1.306 |
760 |
0.05
- 0.10 |
0.5 |
445 |
0.03
- 0.07 |
0.25 |
0.08
- 0.15 |
| 1
: 6,000 |
1372 |
1.881 |
915 |
0.06
- 0.15 |
0.5 |
535 |
0.04
- 0.08 |
0.5 |
0.09
- 0.20 |
| 1
: 8,000 |
1830 |
3.345 |
1220 |
0.10
- 0.20 |
1 |
710 |
0.05
- 0.10 |
0.5 |
0.12
- 0.25 |
| 1
: 10,000 |
2285 |
5.226 |
1520 |
0.10
- 0.25 |
1 |
890 |
0.06
- 0.15 |
0.5 |
0.15
- 0.30 |
| 1
: 12,000 |
2745 |
7.525 |
1830 |
0.15
- 0.30 |
1 |
1065 |
0.07
- 0.15 |
1 |
0.20
- 0.40 |
| 1
: 14,000 |
3200 |
10.243 |
2130 |
0.15
- 0.30 |
2 |
1245 |
0.10
- 0.20 |
1 |
0.20
- 0.45 |
| 1
: 16,000 |
3660 |
13.378 |
2440 |
0.20
- 0.35 |
2 |
1420 |
0.10
- 0.20 |
1 |
0.25
- 0.50 |
| 1
: 18,000 |
4115 |
16.932 |
2740 |
0.20
- 0.40 |
2 |
1600 |
0.10
- 0.25 |
1 |
0.30
- 0.55 |
| 1
: 20,000 |
4570 |
20.903 |
3050 |
0.20
- 0.45 |
2 |
1780 |
0.15
- 0.25 |
1 |
0.30
- 0.60 |
| 1
: 25,000 |
5715 |
32.661 |
3810 |
0.25
- 0.60 |
2.5 |
2220 |
0.15
- 0.35 |
2 |
0.40
- 0.75 |
| 1
: 30,000 |
6860 |
47.032 |
4570 |
0.30
- 0.70 |
2.5 |
2665 |
0.20
- 0.40 |
2 |
0.45
- 0.90 |
| 1
: 35,000 |
8000 |
64.016 |
5330 |
0.40
- 0.80 |
4 |
3110 |
0.25
- 0.45 |
2 |
0.55
- 1.05 |
| 1
: 40,000 |
9145 |
83.613 |
6100 |
0.45
- 0.90 |
4 |
3555 |
0.25
- 0.55 |
2.5 |
0.60
- 1.20 |
| 1
: 45,000 |
10285 |
105.82 |
6860 |
0.50
- 1.05 |
4 |
4000 |
0.30
- 0.60 |
2.5 |
0.70
- 1.35 |
| 1
: 50,000 |
11430 |
130.64 |
7620 |
0.55
- 1.15 |
5 |
4445 |
0.30
- 0.65 |
2.5 |
0.75
- 1.50 |
| 1
: 60,000 |
13715 |
188.13 |
9140 |
0.65
- 1.35 |
5 |
5335 |
0.40
- 0.80 |
4 |
0.90
- 1.80 |
| 1
: 70,000 |
16,000 |
256.06 |
|
6225 |
0.45
- 0.90 |
4 |
1.05
- 2.10 |
| 1
: 80,000 |
18,290 |
334.45 |
7110 |
0.50
- 1.05 |
5 |
1.20
- 2.40 |
| 1
: 90,000 |
20,570 |
423.29 |
8000 |
0.60
- 1.20 |
5 |
1.40
- 2.70 |
|
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