APPLICATION OF ARC GIS SYSTEM TECHNOLOGY IN DETERMINING FLOOD AND SAFE ZONE FOR FLOOD MITIGATION Abdul Azis1, Nur Khaerat Nur2*, Muhammad Chaerul3
1Postgraduate Student Infrastructure and Environmental Engineering, Fajar University, Makassar, Indonesia
2Civil Engineering, Engineering Faculty, Fajar University, Makassar, Indonesia
Infrastructure and Environmental Engineering, Postgraduate Faculty, Fajar University, Makassar, Indonesia
Flood is a common problem in several big cities, such as Makassar City which is the Capital City Center of South Sulawesi Province. The tragedy of the flood disaster on January 21, 2019, which has hit most of South Sulawesi Province, especially Makassar City, and Gowa Regency, still leaves deep grief and also enormous losses for the flood victims. Today, computer-based technology has penetrated almost all sides of human life. Various scientific disciplines have used computer-based technology to develop theories and applications through various information systems. One type of computer-based system that is very popular in use in Geographic Information Systems (GIS) technology. The research method used is the application of the ARC GIS 10.5 system technology. The results of data analysis and mapping of flood areas in Panakkukang District, there are 4 villages which are flood-prone areas that are included in the alert zone, namely Pampang, Tamamaung, Sinri Jala, North Karuwisi. Rappocini Subdistrict, which is part of a vulnerable area, namely Bantabantaeng Village, is 1,985 Ha and 145,709 Ha is included in Karunrung, Gunung Sari, Bontomakkio, Tidung, Kassi-Kassi, Mappala Villages. Manggala sub-districts are included in the vulnerable areas, namely parts of Manggala, Bangkala, and Borong. Tamalanrea sub-districts that are in vulnerable areas are Kleurahan Tamalanrea Indah, Tamalanrea Jaya, and Tamalanrea.
Keywords: Arc GIS, flood zoning, mitigation, Makassar City