International Archives of Photogrammetry and Remote Sensing. Vol. XXXII Part 7C2, UNISPACE III, Vienna, 1999 
I5PR5 
UNISPACE III - ISPRS Workshop on 
“Resource Mapping from Space” 
9:00 am -12:00 pm, 22 July 1999, VIC Room B 
Vienna, Austria 
ISPRS 
Figure 3: Mapping and GIS 
It is this interpretation of information winch makes efficient 
data management possible and affordable. The U.N. Secretariat has tried to monitor existing base map data 
for the different countries and continents at different scales (see 
figure 4). 
5. The Need for Satellite Data Systems to Provide the 
Data 
Africa 
Asia 
Australia 
and 
Oceania 
Former 
USSR 
North 
America 
South 
America 
Europe 
Published at U.N. Cartographic Conference, Beijing 1993 
1:25 000 1:50 000 1:100 000 1:200 000 
World CZ1 33.5% dH 65.6% Cm 55.7% 95.1% 
% 
100