Analysis of Urban Built-up Expansion Based on Combination of Spectral Indices in Surabaya City
| Main Authors: | Ramadhan, Fendra Dwi; Institut Teknologi Sepuluh Nopember, Hariyanto, Teguh; Institut Teknologi Sepuluh Nopember, Handayani, Hepi Hapsari; Institut Teknologi Sepuluh Nopember |
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| Other Authors: | Department of Geomatics Engineering ITS, ESRI Indonesia, ESA |
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Department of Geomatics Engineering
, 2022
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| Subjects: | |
| Online Access: |
https://iptek.its.ac.id/index.php/geoid/article/view/8676 https://iptek.its.ac.id/index.php/geoid/article/view/8676/6512 https://iptek.its.ac.id/index.php/geoid/article/downloadSuppFile/8676/1286 |
Daftar Isi:
- The urban built-up land indicates the physical changes of the city that represent the development indicator in the city of Surabaya. The expansion of urban built-up land needs to be monitored to control and direct urban areas development. In this study, the identification of urban built-up land was conducted by applying a combination of algorithm-based spectral indices consisting of combination A (UI – NDVI – MNDWI) and combination B (NDBI – NDVI – MNDWI) with the spatial expansion analysis that focused on the speed of the urban built-up land expansion and the direction of change of the urban built-up object. Based on the results, the proposed spectral indices combination able to identify the urban built-up land pixels including bare land that free of vegetation and water body object. The pattern of the urban built-up land direction shows a tilt toward the west and east side of the city of Surabaya, while the speed of change shows that combination A and combination B have the same trend, there are a decreasing number of built-up land from 2015 to 2017 and an increasing number of built-up land from 2017 to 2019.