The Impact of Urbanization and Precipitation on Flood damages

Ha, Gyoungjun; Jung, Juchul

doi:10.17208/jkpa.2017.08.52.4.237

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…One difference from previous studies was that the higher the impervious area in coastal cities, the greater the flood damage. The statistically significant results for impervious areas were consistent with studies in Korea [23,47]. Therefore, it is necessary to increase pervious areas when proceeding with port and urban development in coastal cities.…”

Section: Conclusion and Discussionsupporting

confidence: 89%

“…Compared with the research conducted in Korea, the chi-square value of the model was different. According to Ha and Jung [23], the model fit value was 233.13 (chi-square value). This study found it to be 307.…”

Section: Resultsmentioning

confidence: 99%

“…Kantamaneni et al [35], who studied Southampton, United Kingdom, which is the location of one of the key port cities in the UK during the 2013-2014 winter, indicated that 38% of the city's coastline was highly vulnerable. Ha and Jung [23], who studied 104 cities in South Korea from 1995 to 2014, indicated that impervious areas in South Korea were a significant factor for flood damage. However, previous studies had other limitations, including their inability to conceptualize and analyze the development of dangerous areas behind ports where conflicts between development and safety exist.…”

Section: Literature Reviewmentioning

confidence: 99%

“…However, scholars have concentrated only limited attention on urban development within the context of the paradox that arises when development takes precedence over safety in risk areas [20,21]. Whereas some studies have assessed urban development in risk areas [22,23], they may be irrelevant in describing current urban development in coastal cities. Previous studies have not explored the effect of development in coastal cities, though attention has been given to coastal city development and urban development in conjunction with port development.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Coastal City Development on Flood Damage in South Korea

Park

Paterson²,

Zigmund³

et al. 2020

Sustainability

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Flood damage continues to be an issue in coastal cities. Impervious areas that contribute to flood damage are increasing due to the continuous development of ports in cities. However, previous research has not explored development in port hinterlands and in the coastal flood risk areas of coastal cities. Therefore, this study analyzed the impact of coastal city development on flood damage in Korea. A panel Tobit analysis was conducted on 58 coastal cities between 2002 and 2018. The results revealed that a 1% increase in impervious surfaces and one coastal development permit would increase damage costs by 1.29% and 2%, respectively. The analysis revealed that the increasing development of coastal cities had a significant impact on flood damage. The findings suggest that land-use plans highlight a conflict between port development and safety. This article provides insight that can be used by policy makers to manage risk areas near ports.

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Section: Conclusion and Discussionsupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Coastal City Development on Flood Damage in South Korea

Park

Paterson²,

Zigmund³

et al. 2020

Sustainability

Self Cite

View full text Add to dashboard Cite

show abstract

“…IPCC 5차 보고서에 따르면, 동아시아지역 대부분 시나리오가 강수 량 및 극한 강수현상의 발생빈도 증가를 예측한다 (IPCC, 2014). 이러한 기후변화에 따른 피해는 도시지역에서 더욱 증가할 것으로 전망되는데, 이는 불투수도가 높아 동일 강수량 대비 더 큰 침수지역이 발생하고, 인구 및 건축물의 밀집도가 높기 때문이다 (Jah et al, 2012;Ha and Jung, 2017;Mahmoud and Gan, 2018;Zhou et al, 2019).…”

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Estimation of Flooded Area Using Satellite Imagery and DSM Terrain Data

Kim¹,

Lee²,

Kim³

et al. 2019

J. Korean Soc. Hazard Mitig

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This study used satellite image and topographical data simultaneously to identify and verify the areas flooded in Yeongdeok-gun, Gyeongsangbuk-do, Korea, as a result of Typhoon Kong-Rey. The satellite image data were obtained from ESA Sentinel-1 Synthetic Aperture Radar (SAR) imagery and PlanetLab's PlanetScope optical imagery. The topographical data used to identify the depth and extent of the flooding was Digital Surface Model (DSM) data obtained through drone surveying, with resolutions of 0.02 m, 0.1 m, 0.5 m, 1 m, 3 m, 5 m, and 10 m. The area with a large color difference before and after the flooding was designated the primary flooded area. The area that was identified as lower than the primary flooded area, according to the topography data, was determined as the final flooded area. The accuracy was calculated by the intersection versus union method. It increased as the resolution of the topographical data increased and ranged between 62 and 97 percent, depending on the analysis area. In the case of flat areas of land, SAR images showed high accuracy and in the case of areas with densely-placed buildings, optical satellite images showed high accuracy.

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Stormwater runoff reduction simulation model for urban flood restoration in coastal area

et al. 2022

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Urban floods caused by expanding impervious areas due to urban development and short-term heavy precipitation adversely affect many coastal cities. Notably, Seoul, one of the coastal cities that experiences acute urban floods, suffers annually from urban floods during the rainfall season. Consequently, to mitigate the impacts of urban floods in Seoul, we established flood-vulnerable areas as target areas where green infrastructure planning was applied using the Stormwater Runoff Reduction Module (SRRM). We selected the Gangdong, Gangbuk, and Dobong districts in Seoul, Korea, all of which demonstrate high flood vulnerability. Analyses in reducing the runoff amount and peak time delay effect were estimated by model simulation using the SRRM. The reduction in peak discharge for the whole area occurred in the following order: Gangdong district, then Gangbuk district, and lastly Dobong district. In contrast, the reduction in peak discharge per unit area was most prominent in Gangbuk district, followed by Dobong and Gangdong districts. However, the delay effect was almost identical in all target areas. Based on the simulation results in this study, we planned green infrastructure, including green roofs, infiltration storage facilities, and porous pavement. We believe that the results of this study can significantly enhance the efficiency of urban flood restoration and green infrastructure planning in coastal cities. Supplementary Information The online version contains supplementary material available at 10.1007/s11069-022-05477-7.

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The Impact of Urbanization and Precipitation on Flood damages

Cited by 9 publications

References 8 publications

The Effect of Coastal City Development on Flood Damage in South Korea

The Effect of Coastal City Development on Flood Damage in South Korea

Estimation of Flooded Area Using Satellite Imagery and DSM Terrain Data

Stormwater runoff reduction simulation model for urban flood restoration in coastal area

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