532 - 
When surveying is being done from high altitudes, the central 
projection, in which the photoimage is being constructed (plotted), appears 
to be near an orthogonal projection. 
The images of objects of the same type as those obtained on a 
space (cosmic) photograph, are taken in similar conditions of illumination 
and undergo photochemical processing in similar conditions; therefore the 
interpretation keys for identical map elements are also similar. This 
permits one, after identification of only one object, to easily find its analogs 
through the whole area of the photographic image. 
Exploitation of the Soviet pilot orbital stations "Salut" has 
given much useful and valuable information for various branches of the 
national economy. In particular, space photographs made possible the 
obtaining of data which shall considerably increase the efficiency of 
searching for oil and gas. So, for instance, photography of Central Asia 
was investigated for this purpose. Using the results of a structural inter 
pretation of space photographs, a scheme of tectonic structure of the said 
region was plotted. It was found that the structural interpretation can be 
helpful in solving the following concrete problems: determination of neo- 
tectonic and tectonic regions; detection of structural formations of the 2nd 
and 3rd orders; to mark local positive structures; to reveal, follow and map 
longitudinal zones of rupture and local gaps; to make qualitative estimates 
of the modern tectonic activity of structural formations. Information received 
from the space station made possible an analysis, generalization and new 
interpretation of the available geological and geophysical data, proceeding 
from a new principle common for the whole territory under investigation; it 
permitted also a comparison of the .available data on modem tectonic 
activity of the studied regions with their oil-and gas-bearing properties; 
to detect areas of immediate interest for search, and to work out recom 
mendations for organizations of oil-searching. As a result of a preliminary 
structural interpretation, new data were obtained regarding presence and 
distribution of local structures or photoanomalies which possibly correspond 
to local structures. 
Space photographs can be used for elaboration of keys for 
interpretation of geophysical and other anomalies; for accurate definition 
and correction of boundary lines of geological structures, and for 
investigating the deep structure of areas covered with a thick layer of 
sedimentary rocks. 
The "Salut" has provided a large amount of useful information 
for agricultural needs as well. The space photographs reveal 
presence, extension, character, and dynamics of erosive processes. Such 
information gives the possibility to execute planning and realization of 
anti-erosive measures, and to rationally distribute corresponding capital 
investment. 
From space photographs, indications of secondary salting of 
soils in regions of large storage-lakes on the territory of the Central Asian 
Republics had been revealed which permitted one to immediately begin elaboration 
of recommendations for soil protection in this region.