= 
  
Out of these information the classification for urban, rural and forested are- 
as can be elaborated providing that additional specific informations are also 
available /climate, social, economic, ecological etc./ Diagram N 2 
  
  
  
TERRA IN GEOLOGY HYDRO GEOLOGY .REAL STATUS 
RELIEF OF LAND 
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ADITIONAL 
ANALYSIS SPECIFIC 
INFORMATIONS 
  
  
  
  
  
  
  
  
POTENTIAL USE FOR 
URBAN, RURAL AND FREST. 
  
  
  
Diagram N°2 
In order to realise the availability of basic informations a computer proce- 
ssed digital terrain models and photointerpretation of aerial photography is 
adopted. 
2.2. Cyclic aerial survey mission 
First cyclic aerial survey was realised in 1975 in order to provide the pla- 
nners of human environment with updated information about the land status. 
Photography was taken in B/W technique and the scale was 1:17000. Without 
any time classification it is now appearent that such an aerial survey can 
not meet all requirements for interpretation of basic informations. Therefore 
a more detailed plan was made for next 5 years taking into account different 
techniques for different purposes B/W, IR B/W, colour, IR colour, different 
scales 1:5000, 1:10000, 1:17500, 1:30000 and appropriate time schedule 
of aerial survey. The time schedule of aerial survey takes into account the 
intensity of changes on certain area. There fore such areas are covered by 
photography more frequently then others. The aerial survey is realised by 
our aircraft /Piper, Cessna/ with photogrammetric cameras /Wild, Zeiss/ 
and Hasselblad 4 cameras mouting. 
2.3.  Photointerpretation 
Photointerpretation of aerial photographs is realised in Photointerpretation 
933