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UAV 영상과 ENVI-met 활용 물리적 환경과 열적 환경 비교
김성현 ( Seounghyeon Kim ),박경훈 ( Kyunghun Park ),송봉근 ( Bonggeun Song ) 한국지리정보학회 2023 한국지리정보학회지 Vol.26 No.4
The purpose of this study was to compare and analyze diurnal thermal environments using Unmanned Aerial Vehicles(UAV)-derived physical parameters(NDVI, SVF) and ENVI-met modeling. The research findings revealed significant correlations, with a significance level of 1%, between UAV-derived NDVI, SVF, and thermal environment elements such as S↑, S↓, L↓, L↑, Land Surface Temperature(LST), and Tmrt. In particular, NDVI showed a strong negative correlation with S↑, reaching a minimum of -0.52** at 12:00, and exhibited a positive correlation of 0.53** or higher with L↓ at all times. A significant negative correlation of -0.61** with LST was observed at 13:00, suggesting the high relevance of NDVI to long-wavelength radiation. Regarding SVF, the results showed a strong relationship with long-wave radiative flux, depending on the SVF range. These research findings offer an integrated approach to evaluating thermal comfort and microclimates in urban areas. Furthermore, they can be applied to understand the impact of urban design and landscape characteristics on pedestrian thermal comfort.
최민재(Choi, Min Jae),김태훈(Kim, Tai-Hoon),김현주(Kim, Hyun Ju),송봉근(Song, Bonggeun) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.4
본 연구에서는 울산광역시의 석유화학단지 진출입 도로를 대상으로 노후도로 관리를 위한 노면 평탄성 감지장치의 활용방안에 대해 알아보았다. 노면 평탄성 감지장치는 주행 계측을 통해 차량 충격값(G-value)과 속도, 노후지점의 좌표의 정보를 수집할수 있다. 노면 평탄성 감지장치를 활용한 결과, 노후지점은 총 194개가 탐지되었다. 또한 2차선 보다는 1차선 도로에서 노후지점이 다소 많게 측정되었다. 또한, 산업단지 인근의 순방향 2차선 도로는 노후지점이 18개로 가장 많아 도로 노후도가 취약한 것을 알 수 있었다. 본 연구의 노면 평탄성 분석결과는 노후도로의 효율적 유지․보수 등 관리를 위한 우선순위 설정에 활용될 수 있을 것으로 판단된다. The purpose of this study is to investigate the usage of the equipment detecting pavement smoothness focused on roadways in Ulsan Metropolitan City. The road smoothness detection equipment can collect G-value, speed, and coordinates of deteriorated positions while driving. The results of this study show that a total of 194 deteriorated points were detected, and the condition of inner lane was severe than outer lane. The worst severest area was the forward outer lane road near industrial complex and had 18 deteriorated points. Based on the results we found that the equipment is worth for the effective road management and it is, therefore, expected to be used the maintenance system of deteriorated road through continuous monitoring.