The use of matrixes of heights srtm in the preliminary calculations and mapping of depths and potential flood inundation of fluvial plain.

Abstract

The article shows the possibility of using the SRTM model in order to search for the best options for detailed ground-based engineering surveys in flat-tree-free areas. The authors conducted a study of the accuracy of the SRTM model for the territory of the Russian Federation to the south of 60 N and neighboring countries (17 countries of Europe and 10 countries of Asia). A mapped zonality map of the identified systematic errors of the SRTM matrix of heights is shown. Using the example of the Ramensky section of the Moscow River valley (near the cities of Zhukovsky and Ramenskoye), the absolute heights of the surface of the flood flood zone were determined, the boundaries and depths of flooding were calculated and mapped during a flood of 1% of the coverage. Maps of engineering protection objects from flooding of the territory of this site on a scale of 1:100 000 and larger, as well as parts of the Moscow and Oka river valleys on a smaller scale 1:1 000000 are proposed.