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Pemetaan Bahaya Banjir Berbasis Geomorphic Flood Index (GFI) Di Sub-Das Batang Tebo Provinsi Jambi Ias Okta Kurniawan; Dipo Caesario
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.v4i2.37991

Abstract

Banjir merupakan bencana hidrometeorologi yang paling sering terjadi di Indonesia, termasuk di Sub-DAS Batang Tebo yang mencatat 30 kejadian banjir selama periode 2019–2024. Penelitian ini bertujuan memetakan bahaya banjir di Sub-DAS Batang Tebo menggunakan metode Geomorphic Flood Index (GFI) berbasis data Digital Elevation Model (DEM), serta menguji akurasi model terhadap data genangan aktual dari citra Sentinel-1 yang diolah melalui Google Earth Engine (GEE). GFI dihitung secara sistematis menggunakan dua parameter utama, yaitu Height Above Nearest Drainage (H) dan Hydraulic Radius Proxy (hr). Hasil pemodelan menunjukkan bahwa kelas bahaya rendah mendominasi wilayah seluas 279.080,56 ha (65,4%), diikuti kelas sedang 90.913,56 ha (21,3%), tinggi 31.186,86 ha (7,3%), dan sangat tinggi 25.561,28 ha (6,0%). Lima kecamatan termasuk kelas bahaya sangat tinggi: Kecamatan Tebo Tengah, Kecamatan Batin II Babeko, Kecamatan Bungo Dani, Kecamatan Pasar Muaro Bungo, dan Kecamatan Bathin III. Uji akurasi menggunakan True Positive Rate (TPR) menghasilkan nilai 0,64 pada base case (GFI 2,3), sedangkan Frequency Ratio (FR) meningkat konsisten dari 0,11 pada kelas rendah hingga 7,23 pada kelas sangat tinggi. Hasil ini menunjukkan bahwa metode GFI layak digunakan sebagai pendekatan awal pemetaan bahaya banjir berbasis geomorfologi.
ASSESSING COFFEE ECOTOURISM STRENGTHS AND CHALLENGES IN CIBULAO VILLAGE THROUGH STORY MAPS Surya Hafizh; Dipo Caesario; Anisha Syafitri Tanjung; Rizki Zakiah; Silvia Novita; Dhea Sonya; Yunaldo Dwi Cahyadi; Rivantia Azzahra
Jurnal Belantara Vol 9 No 1 (2026)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbl.v9i1.1187

Abstract

Cibulao Village has significant potential for ecotourism development, particularly through coffee cultivation. However, this potential requires strategic planning and effective promotion. This study analyzes the strengths, weaknesses, opportunities, and challenges of coffee ecotourism in Cibulao Village and develops a promotional media that supported by geographic information system using the ArcGIS StoryMaps platform. The methods included interviews, observation, and documentation involving managers, tourists, and the local community. The research results show good potential in developing coffee ecotourism, such as a tourism concept that promotes education on conservation coffee cultivation area and sites but still faces challenges in infrastructure and limited development possibilities due to land ownership and area status. The development of ArcGIS StoryMaps can be an alternative interactive promotional media based on geographic information system technology that is more effective and efficient because it shows the potential strengths, weaknesses, opportunities, and challenges that are depicted in real time tracking map and storytelling.