The geological and environmental data processing is focused, regarding to their
quality and quantity differs in respects to common data. The data are analysed
and categorised in aspect of their further presentation by geographical
information systems. The mathematical and statistical tools for data
preprocessing are emphasised. The space and other long-distnace exploration
data are described as well, together with logical operations and comparative
databases. Frequently used data formats are generated as geostatistical
software output and used as GIS input.