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  • Author: Izabela Karsznia x
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Open access

Martyna Sosnowska and Izabela Karsznia

Abstract

Geographic information systems (GIS) and their tools support the process of real estate trading. Of key importance is the ability to visualise information about real estate in the form of maps of average real estate transaction prices. The following study presents a methodology for mapping average real estate transaction prices using GIS. The map development process comprised three main stages. In the first stage, the input data was processed and statistically analysed. Official data came from the Register of Real Estate Prices and Values, and open data from the National Register of Boundaries. The second stage involved the visualization of the data in the form of maps of average apartment prices using the cartographic methods of choropleth maps and diagrams. The commercial tool ArcMap 10.3 and the free Quantum GIS software were used in the design of the maps of average real estate transaction prices, to check the options for using these types of programs. As a result, eight maps were designed presenting the average transaction prices for residential properties in the Warsaw district of Ursynów in 2015. The final stage was the analysis of the designed maps. The influence of the selection of the reference units on the visualization content, and the impact of combining cartographic presentation methods on the complexity of the presentation of real estate information, were also analysed.

Open access

Katarzyna Medolińska, Izabela Gołębiowska and Izabela Karsznia

Abstract

Of the numerous applications of GIS, administration and public services count among the main fields of application. They are both the users and the owners of the largest amount of spatial data. Portals for higher authorities have been the subject of extensive discussions, but the development and possible use of GIS systems in the form of geoportals at local levels still seems to have been insufficiently discussed. This article presents the process of designing and developing a portal for the lowest authorities - local authorities and the local community. A small town in Poland, Sokółka, was assumed as the study area. The concept development was preceded by, among others: recognition of the needs of an administrative unit in conducting spatial policy; establishment of the objectives, functionalities and assumptions of the designed GIS; a SWOT analysis of the designed geoportal; and an analysis of data resources. Pilot implementation was completed with an evaluation of the geoportal encompassing various groups of potential users.

Open access

Katarzyna Medolińska, Izabela Gołębiowska and Izabela Karsznia

Abstract

Of the numerous applications of GIS, administration and public services count among the main fields of application. They are both the users and the owners of the largest amount of spatial data. Portals for higher authorities have been the subject of extensive discussions, but the development and possible use of GIS systems in the form of geoportals at local levels still seems to have been insufficiently discussed.

This article presents the process of designing and developing a portal for the lowest authorities – local authorities and the local community. A small town in Poland, Sokółka, was assumed as the study area. The concept development was preceded by, among others: recognition of the needs of an administrative unit in conducting spatial policy; establishment of the objectives, functionalities and assumptions of the designed GIS; a SWOT analysis of the designed geoportal; and an analysis of data resources. Pilot implementation was completed with an evaluation of the geoportal encompassing various groups of potential users.

Open access

Maciej Góraj, Marcin Kucharski, Krzysztof Karsznia, Izabela Karsznia and Jarosław Chormański

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

Maciej Góraj, Marcin Kucharski, Krzysztof Karsznia, Izabela Karsznia and Jarosław Chormański

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.