[S-RD24] Cutting-edge sensing technology applied to geology and resource exploration

[SRD24-02] Identification of Flood-Prone Areas with SWAT and the HecRAS Modeling Approach in Bantaeng Regency

*Ilham Alimuddin^1,2, Irwan Irwan^6,2, Irwan Ridwan⁴, Firman Husain³, Siti Suryani⁵, Rajendra Rajendra⁵ (1.Indonesian Association of Geologists of South and West Sulawesi Chapter, 2.Indonesian Remote Sensing Experts Association of South Sulawesi Chapter, 3.Geological Department of Engineering Faculty Hasanuddin University, 4.Civil Engineering Department of Hasanuddin University, 5.Spatial Planning Provincial Office of South Sulawesi Province, 6.Spatial and Regional Planning Department of Hasanuddin University)

Keywords:Flood-Prone Areas, HecRAS Modeling, SWAT Analysis, Indonesia

Flood is one of the most common natural disasters in Indonesia. This condition is caused by many factors, including climate change, environmental damage, especially in the upstream area and a decrease in environmental quality in urban areas. Bantaeng is one of the districts on the south coast of South Sulawesi Province, Indonesia and is a district that is prone to flooding which occurs almost every year. The flood modeling approach is using Soil and Water Analysis Tools (SWAT) employing spatial parameters and HecRAS which will be encoded with spatial pattern data in Bantaeng Regency provides its own value in the form of creating an approach that is integrated with existing development policies in Bantaeng Regency. This research used satellite images for mapping the landcover changes and historical backgrpund of the occurring flood as well taking primary data from the field. The objectives of the research is to identify the prone areas of flood and investigate the most influential factors of the flood.
Keyword: Flood Prone Areas, SWAT, HecRAS Modeling, Bantaeng, Indonesia