digital elevation model

The existing conception of spatial relations in landscapes are considered. It is shown that use of position spatial measures in some cases has substantial advantages. In particular, position conception can be effectively used for soil mapping. The combination of the said approach with modern GIS technology can significantly speed up the process and objectify soil surveys and building soil maps.

The paper represents the general concept of the watershed distributed models. Some fundamental peculiari-ties of the GIS-models for watershed hydrology have been discussed as well as key issues relevant to the distributed hydrological modeling done. In addition the geospatial data concept has been outlined in details, since this data accepted as the initial data sources for the GIS-modeling in the relevant domain. The paper has given some relevant examples from both well-known GIS, and author’s original software.

The ways of improvement of method of the soil drawing a map are offered due to the use of geoinformation technologies. The results of the remote sensing data and digital elevation model combined using for large-scale soil mapping are presented. The integral decoding of this information is considerably improving quality of the created soil maps.