The Výrovka river basin as a suitable area for monitoring and comparing hydrological and landscape characteristics
The Výrovka river basin, as a compact area covering 542.5 km2, is very suitable for monitoring hydrological characteristics and comparing them in different landscape types. It is located on the border of the Lower Vltava and Upper and Middle Elbe sub-basins, extending in a range of 175–555 m above sea level, with a total of six landscape types according to the typology of the contemporary landscape of the Czech Republic. Simultane-ously, there is a varied mosaic in terms of geological subsoil and soil types. There have also been major changes in land use in this basin, mainly due to intensive agricultural activity and related watercourse modifications and amelioration. Monitoring activities within the project SS02030027 ”Water systems and water management in the Czech Republic in conditions of climate change” are currently taking place in the Výrovka river basin.
The aim of this study was to objectively evaluate the applicability of VNIR spectroscopy (spectroscopy in the visible and near-infrared region of the electromagnetic spectrum) for the prediction of forest soil properties. The most appropriate combinations of statistical pre-processing (no pre-processing, continuum removal, 1st and 2nd derivative) and processing (PLSR – partial least squares regression, PCR – principal component regression, SVM – support vector machines) methods in specific spectral bands were sought for each soil property.
Interview with Ing. Lucie Orlíková, Ph.D., an assistant professor at the Department of Geoinformatics, Technical University of Ostrava (VSB)
Generally speaking, the field of geoinformatics is relatively new and the GIS community is still rather small in the Czech Republic. So, the first question will probably not be very original, but it suggests itself at the very beginning – what brought you to this field?
Geographic information systems (GIS), data processing, evaluation and interpretation are an essential and integral part of research at present as most information can be related to a specific location on the Earth’s surface. The GIS and Cartography Department at the T. G. Masaryk Water Research Institute deals with research and commercial projects by means of the application of GIS tools.
The Ministry of Health in cooperation with other related bodies compiles, on an annual basis, the List of outdoor bathing sites on surface waters where the bathing service is offered by the operator, and other surface waters used for bathing. It is compiled based on the long-term monitoring, performed, exclusively as in-situ measurements, by the regional hygiene stations. With respect to the fact that this way of monitoring is not only time-consuming but also financially demanding, the need for minimizing these expenses naturally arises.