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http://dx.doi.org/10.12652/Ksce.2019.39.6.0691

An Automated OpenGIS-based Tool Development for Flood Inundation Mapping and its Applications in Jeju Hancheon  

Kim, Kyungdong (Dankook University)
Kim, Taeeun (Dankook University)
Kim, Dongsu (Dankook University)
Yang, Sungkee (Jeju National University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.39, no.6, 2019 , pp. 691-702 More about this Journal
Abstract
Flood inundation map has various important roles in terms of municipal planning, timely dam operation, economic levee design, and building flood forecasting systems. Considering that the riparian areas adjacent to national rivers with high potential flood vulnerability conventionally imposed special cares to justify applications of recently available two- or three-dimensional flood inundation numerical models on top of digital elevation models of dense spatial resolution such as LiDAR irrespective of their high costs. On the contrary, local streams usually could not have benefits from recent technological advances, instead they inevitably have relied upon time-consuming manual drawings or have accepted DEMs with poor resolutions or inaccurate 1D numerical models for producing inundation maps due mainly to limited budgets and suitable techniques. In order to efficiently and cost-effectively provide a series of flood inundation maps dedicatedly for the local streams, this study proposed an OpenGIS-based flood mapping tool named Open Flood Mapper (OFM). The spatial accuracy of flood inundation map derived from the OFM was validated throughout comparison with an inundation trace map acquired after typhoon Nari in Hancheon basin located in Jeju Island. Also, a series of inundation maps from the OFM were comprehensively investigated to track the burst of flood in the extreme flood events.
Keywords
Flood map; OFM; QGIS; Hancheon; Nari;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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