- 62. 
  
   
Ground Control Points 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
—— 
Country Org4 5.1 5.218 5.21b 5.21c 5.22 5.23 
No. 
Ghena | 1 || 4-6 | Yes No No Yes | Horizontal = 6,1 ecm 
Vertical + 15,3 cm 
Hungary | 1 Hori- Yes Yes Yes Yes Ground control methods: 
zontal Optical the error shoudl not exceed toleran- 
3-5 rad.tr. ces given in instructions (e.g. for 
Verti- triangulation of lower order, iraver- 
cal sing, etc.) 
4-6 rm + - 
I: m *m == 0,1] mn on the scale of 
Xx -y map 
— Iran 1 4 Yes No Yes Yes Horizontal = 0,2 mm 0t) 
5 mm in Vertical + 0,3% H 
1/4 + 
br Italy 1 5-6 Yes No Yes Yes m =m = ]1,5m 
30-40 A 4 1,0 m 
| for 2 79 
it 1225004 
e 2 1 Varies| Yes No Yes Yes Various according to scale, type of 
work, purpose. 
ss Ivory 
: Const 3 Te same as The French Nationel Geographical Institute . 
Japan 1 1 for | Yes No Yes Yes 1:2500-5000 
Laos n AT horizontal  -0,2m 
levation * 
ni vertical -0,2m 
10cm 
LOCH 1:25 000 
horizontal - 1,0m 
vertical . +0,3m 
Malaya l 5 Yes No Yes Yes Horizontal = 0,1 mm n) 
Enoodo- Vertical 1/10 of the contour interval 
9 
chaining 
and le- 
elling 
or of Morocco | 1 5 Yes No No Yes > 40 em in open country 
4 , + 15 em in settlements 
€ polygon. 
^ when sl so Level Ling