Визначення меж та динаміки суцільної забудови урбанізованих територій за даними ДЗЗ

Abstract

The article is devoted to the original approach of defining continuously built-up urban areas as well as the dynamics of this process by means of Earth remote sensing data analysis. Basing on this approach, the spreading borders of continuously built-up urban areas of Kyiv city and its suburbs during 1976-2018 have been defined. Earth remote sensing data, as a valuable source of information on land surface in general and built-up areas in particular, provides wide range of opportunities for researching the process of spatial development of urbanized areas. Analysis of built-up territories during significant period of time allows defining spatial development vectors of urbanized regions, modern continuously built-up areas and their borders. The review of similar researches has revealed that the most convenient sources of Earth remote sensing data for defining the area of built-up territories are represented by multispectral space footages of Landsat space program of the USA. The deciphering of space footages and defining of built-up areas has been conducted involving spectral indexes, which is the most precise method of deciphering the Earth remote sensing data. Thus, we managed to define built-up and non-built-up areas as well as water objects of Kyiv city and its suburbs for 1976, 1985, 2002 and 2008. A set of illustrating schematic maps has been created, depicting borders of built-up area. A continuously built-up urban area has amalgamated Kyiv city and a number of surrounding settlements into a highly-urbanized core. During 1976-2018, the area of continuously built-up urban territory of Kyiv expanded 1,5 times and mostly southwestwards.