earticle

영어

Urban development increased heat island and flood damage due to a decrease in green space and an increase in impermeable layers. The purpose of this study is to construct a disaster prevention DB and to utilize urban environmental information using satellite images. The satellite images are used to prepare the Normalized Difference Built-up Index (NDBI), Normalized Difference Vegetation Index (NDVI), Bare Soil Index (BI), and Land Surface Temperature (LST) using satellite images from 2008 and 2017 in Busan. Analysis of examine their correlations and changes in the Normalized Difference Built-up Index (NDBI), Normalized Difference Vegetation Index (NDVI), and Bare Soil Index (BI). As a result, LST and NDVI have a negative relationship, and LST, NDBI, and BI have a positive relationship. Also increasing NDBI and BI led to urbanization and decreasing NDVI to green areas. Urban changes were reviewed by analyzing areas where NDBI, BI, and LST increased and NDVI decreased. Changes were most frequent in Gangseo-gu and Gijang-gun, Busan. Using satellite imagery, it will be possible to predict urban change, establish disaster prevention DB, and utilize urban environmental information. And It is thought that the satellite image can be used for solution of urban heat island phenomenon, urban change prediction and urban management environment information.