| Autor: |
Damdinsuren, Amarsaikhan, Amarsaikhan, Enkhmanlai, Gurjav, Tsogzol, Altangerel, Munkh-Erdene, Enkhtuya, Jargaldalai, Damdinsuren, Enkhjargal, Tsedev, Bat-Erdene, Batdorj, Byambadolgor |
| Předmět: |
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| Zdroj: |
Journal of Institute of Mathematics & Digital Technology (JIMDT); 2023, Vol. 5 Issue 1, p40-49, 10p |
| Abstrakt: |
In recent years, Ulaanbaatar, the capital of Mongolia, has experienced very rapid urbanization. Different reasons are considered for urban expansion, however, the main cause is connected with a mass movement of rural people seeking for improved living conditions. The aim of this study is to analyse changes in urban land use in the central part of the capital city using remote sensing (RS) and geographic information system (GIS) datasets. For the development of the principal digital spatial database, a 1:5000 scale topographic map and a historical description of the elements of land use were used. To update the database and extract reliable urban land use information, very high-resolution panchromatic and multispectral Quickbird images of 2023 were fused. For fusion, three different data fusion techniques such as a Brovey transform, Gramme-Schmidt method and intensity-hue-saturation (IHS) transformation were compared in terms of the enhancement of spatial and spectral variations of the available classes. Of these methods, the IHS transformation gave a superior result in terms of both spectral and spatial separations between different objects and classes. Therefore, for this technique was selected for further analysis. Overall, the research showed that the central part of Ulaanbaatar city became very dense and precise planning should be considered. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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