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  • Author: Krzysztof Karsznia x
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The assessment of the suburbanisation degree of Warsaw Functional Area using changes of the land development structure

Abstract

The paper presents the analysis of spatial suburbanization using a multi-indicator method. Based on features related to geodetic areas (according to the directions of their use) such as built-up areas, urbanised lands, arable lands, residential, recreation and leisure areas, road transport areas as well agricultural and forest areas transformed into local land development plans - six suburbanization indicators were developed. After the standardisation of such indicators, a summary index was obtained making it possible to determine the suburbanization degree. The validation of the proposed method was made by comparing individual municipalities with the unit type determined using the Webb method. The analysis made it clear that the only four units with spatial features of the city lying in the proximity of Warsaw, for which Polish capital could be enlarged are: Piastów, Pruszków, Marki, Józefów and possibly Sulejówek.

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Changes in a hydrographic network of the Słowiński National Park in terms of photogrammetric analyses

Abstract

The main objective of this study is to evaluate the changes in the hydrographic network of Słowiński National Park. The authors analysed the changes occurring in the drainage network due to limited maintenance in this legally protected natural area. To accomplish this task, elaborations prepared on the basis of aerial photographs were used: an orthophoto map from 1996, hyperspectral imaging from June 2015, and a digital terrain model based on airborne laser scanning (ALS) from June 2015. These spatial data resources enabled the digitisation of the water courses for which selected hydro-morphological features had been defined. As a result of analysing the differences of these features, a quality map was elaborated which was then subjected to interpretation, and the identified changes were quantified in detail.

Open access