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Iswan Dunggio
Universitas Negeri Gorontalo
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Analisis Spasial dan Pemetaan Zonasi Rawan Bencana Banjir di Kota Gorontalo Berbasis Sistem Informasi Geografis (SIG) Melo, Ramla Hartini; Dunggio, Iswan; Salote, Rahmat .H.; Liputo, Rahmat; Niode, Syarifah Fatimah Setiasih
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.36290

Abstract

This study aims to conduct spatial analysis and mapping of flood hazard zoning in Gorontalo City using a Geographic Information System (GIS). Indonesia, as a “disaster supermarket,” faces floods as the most dominant meteorological and hydrological threat. Gorontalo City has been recorded as highly affected; as of July 2024, 4,686 houses and 41,164 residents were impacted by flooding, with Biawu Subdistrict identified as the most severely affected area. The research method employs spatial analysis of secondary data using overlay techniques on variables including administrative boundaries, soil types, slope gradient, and rainfall, all in shapefile (SHP) format. Data sources are integrated from BNPB’s InaRISK and Google Satellite imagery. The results indicate that the majority of Gorontalo City falls within a high-risk zone (red), concentrated in the lowland central to northern areas encompassing Kota Tengah, Kota Selatan, Kota Timur, Dungingi, and Sipatana Districts. This high level of vulnerability is driven by a combination of flat topography, low soil infiltration capacity, and high rainfall. The resulting map serves as a strategic scientific instrument for the government in formulating adaptive mitigation and spatial planning policies to minimize future disaster risks.
Co-Authors -, Ahmad Faqih Achmad, Fariz Adam, Verra Ahmad Zainuri Alamri, Istiqomah Andi Chairil Ichsan Asep Nurdin Ashari, Firmansyah Assel, Abdurrahman Baderan, Dewi Wahyuni. K Bahuwa, Isra Cahayani Bambang Mamangkay Blongkod, Agnes Botutihe, Nur Meyla Ulfiana Cono, Titi Hawanda Metania Daud Yusuf Desey, Herlina Dewi Sartika T. Zees Dewi Wahyuni K. Baderan Diman, Ruswinda S. Efendy Payuyu Eka Reza Saputra Widodo Fajran Bentearu Farid SM Faridawaty, Waode Feri Novriyal Fery Rahmat Angriawan Bagu Fitriyane Lihawa Fitriyane Lihawa Fitriyane Lihawa Fitryane Lihawa Frandika K. Toiyo Frandika K. Toiyo Fuad Pontoiyo Golfred Alex Kojongkam Hasim Hasim Hasim Hasim Hasim Hasim Hasim Hasim, H Hazairin Thamrin Hendra Gunawan Hendri Iyabu Herlindah Heru Z Thalib Igirisa, Mohamad Aldo Irawan, Mohammad Bayu Isra Cahayani Bahuwa Juramang, Risnayanti Kadir, Zein Setiawan Kadir, Zen Setiawan La Alio Lahili, Rahmanto Lasang, Saharil Salim Liberty Lodjo Lihawa, Fitriyane Liputo, Rahmat Malik, Safira Putri H. Marini Susanti Hamidun Mawardi Heru Prasetyo Misnawaty Wantogia Mohamad Zainudin Usman Mohamad, Aina Mohamad, Nurdin Mohammad Bayu Irawan Mosi, Yetty MUHAMMAD YUSUF Muhammad Yusuf musa, weni ja Mutmainnah Usman Ningsih Rahman Niode, Syarifah Fatimah Setiasih Novalia Warow Novriyal, Feri Nur Meyla Ulfiana Botutihe Nurdin . Nurdin Mohamad Nurdin, Isra Nurma Rosalia Pakaya, Dudiyanto Pakaya, Moh. Reynaldi Pakaya, Parid Parid Pakaya Prasetyo, Mawardi Heru Puspaningrum, Dian Rahman Hasan Rahman, Sitti Mutiah Rahmawati A. Damiti Ramla Hartini Melo Ramli Utina Risma Neswati, Risma Rival Rahman, Rival Rosalia, Nurma Salote, Moh Khamal Salote, Rahmat .H. Saputra Widodo, Eka Reza Siti Amalia Gobel Situmeang, Dody Boy Venalocha SM, Farid Sofyan Abdullah Sofyan Abdullah, Sofyan Sudarmanto Hasan Sukirman Rahim Sukma Dewanty Jahja Supriyatna Supriyatna Suryadi Syamsuddin Suryadi Syamsudin Syam S. Kumaji Thalib, Heru Z Toiyo, Frandika K. Usman, Mutmainnah Wantogia, Misnawaty Waode Faridawaty Warow, Novalia Weny J.A Musa Yosef Endri Cahyono Yusfriandi Dwi Ariesna Zein Setiawan Kadir Zulham Sirajuddin Zuliyanto Zakaria