Abstract
There have been many changes in the spatial composition and formal delimitation of administrative boundaries of Czech municipalities over the past 30 years. Many municipalities have changed their official status; they separated into ones that were more independent or were merged with existing ones, or formally redrew their boundaries due to advances in mapping technology. Such changes have made it almost impossible to analyze and visualize the temporal development of selected socioeconomic indicators, in order to deliver spatially coherent and time-comparable results. In this data description, we present an evolution of a unique (geo) dataset comprising of the administrative borders of the Czech municipalities. The uniqueness lies in time and topologically justified spatial data resulting in a common division of the administrative units at the LAU2 level, valid from 1995 to 2019. Besides the topologically correct spatial representations of municipalities in Czechia, we also provide correspondence tables for each year in the mentioned period, which allows joining tabular statistics to spatial data. The dataset is available as a base layer for further temporal and spatial analyses and visualization of various socioeconomic statistical data.
Highlights
There have been many changes in the spatial composition and formal delimitation of administrative boundaries of Czech municipalities over the past 30 years
The primary motivation for the compilation of the presented datasets comes from the need of the project dealing with spatial differentiation and visualization of geodemographic processes in Czechia over the last 25 years
While most of the national statistical data, especially those coming from censuses, are published for clearly defined administrative units [2], it is essential to have such units for spatial analyses and visualization in the form of spatial data
Summary
The primary motivation for the compilation of the presented datasets comes from the need of the project (spatial differentiation and visualization of geodemographic processes, with a focus on households in an aging society in the Czech Republic) dealing with spatial differentiation and visualization of geodemographic processes in Czechia over the last 25 years. (1) Splitting features: administrative units were divided over—it is clear from Table 1 that the number of administrative units increased from 6232 in 1995 to 6258 in 2019, which is the absolute difference of 26 units This number is not significant (given the total number of more than 6000 units); changes were detected in more than 70 cases over the period due to other discrepancies further described below. To summarize the final output, we prepared a dataset consisting of the spatial representation of aggregated administrative units valid for a period from 1995 to 2019, and the non-spatial part in the form of the correspondence table, where “old” (former) and “new” (based on aggregation) ID codes of municipalities are listed.
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