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2 2017

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Compatibility of RTN solutions in selected active geodetic networks

100%

Kudas D. , Wnęk A. , Czempas T.

Infrastruktura i Ekologia Terenów Wiejskich

2017

tom nr II/2

767--781

Results of 24h real-time network (RTN) measurements performed at the same time on two positions with 60 seconds sapling intervals were the subject of analysis. These measurements results were determined on the basis of VRSnet.pl being commercial network of reference stations as well as Małopolski System Pozycjonowania Precyzyjnego (MSPP) which in turn is part of the national ASG-EUPOS network. The absolute error and uncertainty of point position for each observation were computed. Subsequently, uncertainty of point position was compare with values of three dimensional Root Mean Square (3D RMS) which in turn were determined using algorithms of selected systems. Measurements using the RTN method can be used to quickly collect information about the location and geometry of objects for field studies.

The analysis of Land Cover macrostructure in the suburban area of Krakow

88%

Cegielska K. , Kudas D. , Różycka-Czas R. , Salata T. , Szylar M.

2017

tom no. 2

47--60

The suburban areas are lands under strong anthropogenic pressure which results in their significant transformation. Identifying the direction of changes and their intensity is the basis of research based on the analysis of land use and land cover. The study involved the analysis of land cover in the area of suburban zone of the city of Krakow based on the vector geodata available in the European Environment Agency database (Urban Atlas download service). Geographic data were classified according to various categories of coverage. The area was divided into evaluation clusters that included covering buffer zones with the given parameters according to the distance from the city: zones 0–5 km, 5–10 km, 10–15 km and 15–20 km. All analyzes were performed by means of the QGIS software using geoprocessing tools and additional ones of spatial statistics (among other things Group Stats). The percentage of each category of coverage in relation to the total area was made for each of the separate buffer zones’ statements. The theory of changing the structure of coverage categories along with diverging from the city according to the diagram of reducing participation of heavily anthropogenic areas to those less exposed to it was confirmed on the basis of this analysis.