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Determination of basic typology of elevated water tanks

This paper introduces an initial effort at a systematic approach to the typology of elevated water tanks for the purpose of solving the research project Elevated water tanks – identification, documentation, presentation, new use. It builds on the previous definition of the terminology of the problem and the definition of the object of interest. From a typological point of view, elevated water tanks are seen as an integral part of larger technological units – water supply systems. In the framework of the basic division, the typology of elevated water tanks is based on the selection of parameters – the building situation of the tower reservoirs in relation to other objects, the function of elevated water tanks, the supporting structure, the shape and material of the accumulation tank, the number of tanks and the purpose of the object.

Water quality of the Prague’s streams. Part 1: Motolský and Litovický streams

Results of water quality observation in the selected profiles on the Motolský and Litovický streams during the year 2018 are presented. Monitoring of water quality parameters was focused mainly on the nutrients content (nitrogen and phosphorus), chlorophyll-a concentrations and on the phytoplankton and zooplankton species composition.

Determination of the extent of soil unprotected by vegetation in the period of rainstorms to assess erosion risk

The article describes the method, the source data, and the results of analyses of bare soil by remote sensing and its relation to soil erosion risk. The method was tested on the parcels of AGRA Řisuty, s. r. o. Data from the satellites Landsat 8 and Sentinel 2 were used for detecting the presence of vegetation cover on each parcel.