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Jurnal Geografi
Published by Universitas Negeri Medan
ISSN : 20858167     EISSN : 25497057     DOI : -
Core Subject : Science, Education, Social,
Earth & Planetary Sciences Education Environmental Science Social Sciences Other
Jurnal Geografi is published as a scientific communication media in the field of Geography Education in particular and Geography in general, as well as other related fields, for faculty members, alumni of Geography Education both from the Faculty of Social Sciences of State University of Medan and alumni of geography from other universities. As a medium of scientific communication, this magazine serves to provide a means of publication for the field of development of concepts and theoretical studies, including actual issues that are relevant in the field of Geography Education in particular and Geography in general. The content of the writing does not have to be in line with the editorial policy. The magazine is published twice a year in February and August and is distributed as a publication for geography education, geography or other related fields. Circulation for the limited circle and enthusiasts can get it by changing the cost of printing and postage.
Arjuna Subject : Ilmu Sosial - Geografi, Perencanaan dan Pengembangan
Articles 330 Documents
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POPULATION DISTRIBUTION AND DENSITY CHANGING PATTERN IN SUMATERA UTARA Nilasari Siagian
JURNAL GEOGRAFI Vol 13, No 2 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i2.25428

Abstract

The purpose of this study was to determine the distribution of population density descriptions and patterns of change in North Sumatra. This type of research is library research (Library Research). Data collection techniques are carried out by utilizing existing facilities in the library, such as books, magazines, documents, secondary data records, statistical data, or pure library research related to the object of research. The analytical method provides a clear, objective, systematic, analytical, and critical description and description of the distribution and population density description: characteristics and patterns of change in North Sumatra. The initial step is achieved by collecting the required data, classifying it, describing it, and then analyzing it. The results of this study explain that the distribution pattern and population density that occur are caused by spatial characteristics and geological changes. When viewed from the aspect of population density. The high population density in North Sumatra causes social problems such as congestion, poverty, health services, crime rates, settlements, unhealthy living environments, and others. The pattern of population distribution that occurs is geographical. The largest distribution is still throughout the East Coast region, wherein that region there are the largest number of districts (above 5% of the province's population).Keywords: Population, Distribution, Density, Spatial 
MAPPING OF LAND USE CHANGES IN THE CORE ZONE OF PARANGTRITIS SAND DUNES USING OBIA METHOD 2015-2020 Latifa Melani Putri; Pramaditya Wicaksono
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.21465

Abstract

Indonesia has many types of unique and rare landforms, one of which is sand dunes, which is located in Parangtritis. Sand dune has the main function as a conservation area, natural wall for the tsunami disaster, water catchment area, and habitat for sand dune flora and fauna. However, the existence of sand dunes is currently threatened with extinction due to the decrease in their area, which is caused by changes in land use. Every year, the land use in the Parangtritis sand dune changes. Therefore, it is important to map land use changes to determine the changes that occur in the sand dune core zone. This study aims to map land use change in the core zone of sand dunes using small format aerial images and the OBIA (Object-Based Image Analysis) method. Land use in the study area is classified into nine classes, namely sand dunes, dry land forest, shrubs, coastal shoals, open field, built-up area and settlements, dry land agricultural fields, roads, and fishponds. The results showed that there were changes in all land use classes. Based on the accuracy assessment, the overall accuracy for 2020 was 68.95%, while the classification results for 2015 were 61.81%.Keywords: land use changes, OBIA, Small Format Aerial PhotographyIndonesia memiliki banyak jenis bentuklahan yang unik dan langka, salah satunya adalah gumuk pasir yang terletak di wilayah Parangtritis, Daerah Istimewa Yogyakarta. Gumuk pasir memiliki fungsi utama sebagai kawasan konservasi, tembok alami bencana tsunami, kawasan resapan air, serta habitat untuk flora fauna gumuk pasir. Namun, keberadaan gumuk pasir saat ini terancam punah oleh adanya penurunan luasannya, yang disebabkan oleh perubahan penggunaan lahan. Setiap tahun, penggunaan lahan di gumuk pasir Parangtritis mengalami perubahan, yang akhirnya menyebabkan luasan gumuk pasir selalu berkurang setiap tahunnya. Oleh karena itu, pemetaan perubahan penggunaan lahan penting untuk dilakukan untuk mengetahui perubahan yang terjadi di zona inti gumuk pasir. Penelitian ini bertujuan untuk memetakan perubahan penggunaan lahan di zona inti gumuk pasir menggunakan foto udara format kecil dan metode OBIA (Object-Based Image Analysis). Penggunaan lahan di wilayah kajian diklasifikasikan menjadi sembilan kelas yaitu gumuk pasir, hutan lahan kering, semak belukar, beting pantai, lahan terbuka, lahan terbangun dan permukiman, ladang, jalan dan tambak. Hasil penelitian menunjukkan adanya perubahan pada semua kelas penggunaan lahan. Berdasarkan uji akurasi, akurasi keseluruhan (overall accuracy) hasil klasifikasi penggunaan lahan tahun 2020 sebesar 68,95%, sedangkan hasil klasifikasi penggunaan lahan tahun 2015 sebesar 61,81%.Kata kunci: Perubahan Penggunaan Lahan, OBIA, Foto Udara Format Kecil 
IMPACTS OF PATTERNS OF ECONOMIC AGENTS ACTIVITIES IN THE SEMERU VOLCANO CONSERVATION AREA Nuansa Bayu Segara; Iin Wariin Basyari
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.16540

Abstract

Semeru volcano is the most popular mount hiking tourism in Indonesia. The economic community and conservation area are affected by these activities. This research focuses on the development activities of economic agents pattern and explains the impact of high tourism in the Semeru Volcano conservation area. It was a qualitative study, and the participative observatory was a procedure for collecting the data. The location was not limited in the Semeru Volcano, but also social media, Instagram. The result of the research reveals that there are two kinds of economic agents, namely internal and external. They have positive connectedness to support hiking activities. Although there should be potential for competition between open trip services and local guides, this does not happens, due to the wisdom of internal economic actors, especially local guides. Moreover, the consequences of high tourism activities in the Semeru Volcano conservation area are waste and erosion. The article is concluded by proposing several directions for economic agents to be involved more in conservation activities and positive business in the Semeru Volcano.Key words: Semeru Volcano, economic agent, conservation area, mount tourismGunungapi Semeru merupakan wisata pendakian gunung yang paling populer di Indonesia. Aktivitas ini tentu berdampak terhadap perekonomian penduduk sekitar dan lingkungan di kawasan konservasi. Artikel ini mengkaji pola aktivitas dan pelaku ekonomi yang terlibat dalam perkembangan wisata, dan mengungkap dampak tingginya aktivitas ini terhadap Kawasan Konservasi Gunungapi Semeru itu sendiri. Penelitian ini menggunakan pendekatan kualitatif yang bersifat ekploratif. Pengumpulan data dilakukan secara observasi partisipatif dan tidak terbatas di kawasan pendakian, namun juga melakukan observasi di media sosial instagram. Hasil penelitian menujukan pelaku ekonomi terdiri dari internal dan eksternal kawasan, yang memiliki keterkaitan positif antar pelaku ekonomi dari luar dan dalam Kawasan Pendakian. Meskipun semestinya ada potensi persaingan antara jasa open trip dengan pemandu lokal, akan tetapi hal itu tidak terjadi, karena kearifan pelaku ekonomi internal, khususnya para pemandu lokal. Dampak tingginya aktivitas wisata pendakian ini mengakibatkan dua permasalahan yang cukup serius, yaitu sampah dan erosi. Artikel ini diakhiri dengan memberikan beberapa usulan terkait dengan peningkatan keterlibatan pelaku ekonomi dalam melakukan usaha dan aktivitas konservasi di Kawasan Gunung Semeru. Kata kunci: Gunungapi Semeru, pelaku ekonomi, kawasan konservasi, wisata gunung
TEACHER PERSPECTIVES ON HIGH SCHOOL IN ACEH PROVINCE ABOUT NATURAL DISASTERS Rina Fitri; Sulastri Sulastri; Ismail AB
JURNAL GEOGRAFI Vol 13, No 2 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i2.23863

Abstract

The Indonesian government has made efforts to restore the structure and development of school responses, including increasing knowledge, skills, and disaster management operating systems in schools. School leaders and teachers are expected to balance the need for standard operating procedures with the ability of organizational structures to respond to specific problems caused by disasters. Teacher enhancement is expected to provide a more active role for students and overcome their stress in post-disaster situations. This study aimed to examine the perspective of high school teachers on knowledge of natural disasters and natural disaster mitigation. A descriptive statistical approach is used to describe and explain teacher knowledge and mitigate natural disasters. Explaining how much influence or relationship between teachers' knowledge on disaster mitigation is done. The sample in this study was high school teachers in Aceh province, with 389 teachers. The research data collection used an instrument in the form of a questionnaire. The results showed that the perspective of high school teachers regarding knowledge of natural disasters was in the high category on average; the average teacher knew general knowledge of natural disasters, signs of catastrophe, classification of natural disasters, and causes of natural disasters. Not much different from the results of the teacher's perspective regarding natural disaster mitigation in the very high category, planning in the mitigation process, policies, operational disaster procedures, signs of disaster evacuation have been recognized by SMA teachers in Aceh province. The level of knowledge of high school teachers with mitigation has a significant relationship, so the higher the knowledge of high school teachers about natural disasters, the more high-school teachers can mitigate against natural disasters.Keywords: Teacher's Perspective, Natural Disaster Knowledge, Natural Disaster Mitigation, Regression Analysis
PHYSICAL AND SOCIAL VULNERABILITY IN THE HOUSHOLD LEVEL TOWARDS TSUNAMI IN SADENG COASTAL AREA, GUNUNGKIDUL Fitria Nucifera; Sutanto Trijuni Putro; Sakinatul Afidah
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.19160

Abstract

Tsunami occurrence in Indonesia has continued to increase until 2018. The southern coast of Java is one of the tsunami-prone areas because it is located in a subduction zone. Study location is Sadeng coastal area which is located in the south coast of DIY Province. Disaster vulnerability studies at the household level is still limited, so this paper aims to identify physical and social vulnerability to tsunami hazard at the household level. The data of this research was obtained by invterviewing household respondents and observing physical condition of building. Identification of physical vulnerability was performed using modified SCHEMA and PTVA-3 method, while social vulnerability assessment considered demographic and socio-economic parameters. Total vulnerability was retrieved from matrix analysis of physical and social vulnerability classification. The study shows that 64 % households in Sadeng coastal areas are classified to moderate vulnerability, 30% of households are high vulnerability and 6 % of households are low vulnerability.  High vulnerability is characterized by households which occupy non-permanent houses, have no economic assets, and have a high dependency ratio. Moderate vulnerability is characterized by households which occupy semi-permanent house, have economic assets, but have high dependency ratio. Low vulnerability is characterized by households which live in government-owned buildings, have economic assets, and have low dependency ratio. Keywords: tsunami, vulnerability, building`s physical vulnerability, social vulnerabilityKejadian tsunami di Indonesia terus mengalami peningkatan hingga tahun 2018. Pesisir selatan Jawa merupakan salah satu kawasan yang terpapar bahaya tsunami karena terletak pada zona subduksi. Lokasi kajian adalah kawasan pesisir Sadeng yang berlokasi di pesisir selatan Propinsi DIY. Kajian kerentanan bencana di tingkat rumah tangga belum banyak dilakukan, sehingga tulisan ini bertujuan untuk melakukan identifikasi kerentanan fisik bangunan dan sosial terhadap bencana tsunami di tingkat rumah tangga. Perolehan data penelitian dilakukan dengan wawancara responden rumahtangga dan observasi kondisi fisik bangunan. Identifikasi kerentanan fisik bangunan dilakukan dengan metode SCHEMA dan PTVA-3 yang dimodifikasi, sedangkan penilaian kerentanan sosial mempertimbangkan parameter kependudukan dan sosial ekonomi. Nilai total kerentanan diperoleh dari analisis matriks klasifikasi kerentanan sosial dan fisik bangunan. Kajian menunjukkan bahwa sebesar 64 % rumahtangga di kawasan pesisir Sadeng termasuk dalam kelas kerentanan sedang, 30 % rumahtangga dalam kerentanan tinggi dan 6 % rumahtangga dalam kerentanan rendah. Tingkat kerentanan tinggi dicirikan dengan rumahtangga yang menempati rumah tinggal non-permanen, tidak memiliki asset ekonomi, dan memiliki angka ketergantungan yang tinggi. Tingkat kerentanan sedang dicirikan dengan rumahtangga yang menempati rumah tinggal semi permanen, memiliki asset ekonomi namun memiliki angka ketergantungan yang tinggi. Tingkat kerentanan rendah dicirikan dengan rumahtangga yang tinggal pada bangunan milik pemerintah, memiliki asset ekonomi, dan memiliki angka ketergantungan yang rendah.  Kata kunci: tsunami, kerentanan, kerentanan fisik bangunan, kerentanan sosial
COMMUNITY RESPONSES OF NORTH BANDUNG SUBURBS TO LAND CONVERSION Lili Somantri
JURNAL GEOGRAFI Vol 13, No 2 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i2.24477

Abstract

The northern suburbs of Bandung City are an expansion area of the development of Bandung City. The regional development in suburban areas can cause land conversion problems. The objective of the present study was to identify the community's response and the factors of land conversion in the northern suburbs of Bandung City. A descriptive quantitative method was employed through the presentation of percentages and the results of interviews with 108 respondents. Findings reveal that the people’s responses to land conversion exhibited positive and negative responses. Among the positive responses were that land conversion was perceived appropriate for regional development; road construction could increase citizen mobility and create job opportunities. Meanwhile, among the negative responses were that land conversion could result in hot temperatures, barren fields, humidity, lack of water sources, and the loss of agricultural land. The factors affecting land use conversion included population growth, the development of the Bandung City area, construction of residential and tourist areas, increased land prices, and socio-cultural factors of the Sundanese people.Keywords: community response,  land function conversion factors, suburbs of the north of Bandung, land function conversion
ANALYSIS OF VILLAGE DEVELOPMENT BASED ON VILLAGE FUNDS (CASE STUDY OF SEI ROTAN VILLAGE, PERCUT SEI TUAN DISTRICT) Mahyudin Situmeang
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.22022

Abstract

So far, the government has realized the village fund budget every year. Therefore, every village government must develop plans that can support the community's welfare by prioritizing community priorities or needs. The purpose of this study was to analyze the village fund allocation policies in village development planning. This type of research is descriptive qualitative. Data collection techniques are carried out by observation and interviews, then analyzed using qualitative analysis techniques. Data processing is done by reducing, categorizing, and concluding, and presenting data. The results of this study found that so far, the village fund allocation policies have been implemented well, such as meeting basic needs, building facilities and infrastructure, developing local economic potential, and utilizing natural and environmental resources. Likewise, the face of the regional planning of Sei Rotan Village using the Village Fund budget has been able to leverage Village welfare. However, the problem is that the planned program has not been fully fulfilled due to limited human resources and funding. The regional development realized with village funds are roads, bridges, and drainage at flood-prone points. The land use pattern of the Sei Rotan area shows the expansion of the built-in land in the form of developer housing and community villages.Keywords: Village Fund, Development, TerritoryPemerintah sejauh ini telah merealisasikan anggaran dana desa setiap tahunnya. Oleh karena itu, setiap pemerintah desa wajib membuat perencanaan pembangunan yang dapat mendukung kesejahteraan masyarakat dengan mengutamakn perioritas atau kebutuhan masyarakat. Tujuan penelitian ini adalah untuk menganalisis kebijakan alokasi dana desa dalam perencanaa pembangunan wilayah desa. Jenis penelitian ini adalah deskriptif kualitatif. Tehnik pengumpulan data dilaksanakan dengan observasi dan wawancara, kemudian dianalisis menggunakan tehnik analisis kualitatif. Pengolahn data dilakukan dengan mereduksi, mengkategorisasikan, dan menyimpulkan dan menyajikan data. Hasil penelitian ini menemukan bahwa selama ini kebijakan alokasi dana desa telah dilaksanakan dengan baik seperti pemenuhan kebutuhan dasar, pembangunan sarana dan prasarana, pengembangan potensi ekonomi lokal, dan pemanfaatan sumber daya alam dan lingkungan. Demikian halnya wajah perencanaan wilayah Desa Sei Rotan dengan menggunakan anggaran Dana Desa telah mampu mengungkit peningkatan kesejahteraan Desa. Namun permasalahannya belum sepenuhnya program yang direncanakan terpenuhi dikarenakan keterbatasan sumberdaya manusia dan anggaran. Adapun pengembangan wilayah yang terealisasi dengan dana desa adalah pembangunan jalan, jembatan, drainase pada titik-titik rawan banjir. Pola pemanfaatan lahan kawasan Sei Rotan memperlihatkan perluasan lahan terbangun dalam wujud perumahan pengembang maupun perkampungan masyarakat.Kata kunci: Dana Desa, Pembangunan, Wilayah
CARRYING CAPACITY OF SATTLEMENT BASED ON DISASTER PRONE AREAS Baiq Harly Widayanti; Osy Insiani
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.17679

Abstract

The research aims to assess potential locations that can be developed as settlement areas by observing the area's topographical factors as well as the potential for disaster-affected areas. This research used a quantitative qualitative descriptive method with overlay method between existing land use map, topography map with location map affected by flood disaster, volcano eruption, forest fire, avalanche and tsunami. The results of this study was 20,112 ha (24.93%) is a potential area of settlements. Carrying capacity value for the settlements for all districts is above 1 (one) so that all districts have a possibility to develop settlement areas. The development of the settlement area is preferred in the Gangga because the value of the carrying capacity reaches 71.63, while the development of settlements is limited in Bayan and Kayangan. For settlements that have been developed in hazardous areas, the handling is a restriction and prohibition for new developments in disaster-prone areas and relocation in settlement areas in areas with insecurity levels high.Keywords: carrying capacity, disaster, prone-area, risk, settlementsTujuan penelitian ini adalah untuk mengkaji lokasi potensial yang dapat dikembangkan sebagai kawasan permukiman dengan memperhatikan faktor topografi kawasan serta potensi kawasan terdampak bencana. Penelitian ini menggunakan metode penelitian deskriptif kuantitatif dengan metode overlay antara peta penggunaan lahan eksisting, peta topografi kawasan dengan peta lokasi yang terdampak bencana banjir, erupsi gunungapi, kebakaran hutan, longsor dan tsunami. Hasil dari penelitian ini terdapat 20.112 ha (24,93%) wilayah merupakan kawasan potensial permukiman. Nilai daya dukung lahan permukiman untuk semua kecamatan berada di atas 1 (satu) sehingga masih dapat menampung penduduk untuk bermukim. Pengembangan kawasan permukiman diarahkan terutama pada Kecamatan Gangga karena nilai daya dukung permukiman mencapai 71,63, sedangkan yang perlu dibatasi pengembangan permukiman pada Kecamatan Bayan dan Kecamatan Kayangan. Untuk kawasan permukiman yang telah terbangun pada kawasan rawan bencana arahan penanganannya berupa pembatasan dan pelarangan untuk pembangunan baru dan relokasi pada kawasan permukiman yang berada di kawasan dengan tingkat kerawanan tinggi. Kata kunci: bencana, daerah rawan, daya dukung, permukiman, risiko
GEOMORPHOLOGICAL ANALYSIS FOR THE IDENTIFICATION OF SMALL VOLCANIC ISLANDS IN NORTH MALUKU, INDONESIA Bachtiar W. Mutaqin; Warsini Handayani; Fredi Satya Candra Rosaji; Desy Wahyuningtyas; Muh Aris Marfai
JURNAL GEOGRAFI Vol 13, No 2 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i2.21526

Abstract

Indonesia, which is located in the Pacific Ring of Fire, has at least 100 active volcanoes that are spread among more than 17,000 islands. Several active volcanoes are located on small islands, so they require a greater effort in relation to disaster management, especially those related to volcano activities. However, research on the identification of small volcanic islands has not been widely carried out in Indonesia. This study tries to fill the gap using a geomorphological aspect approach, which consists of morphology, morphogenesis, morphochronology, and morphoaransement, to identify small volcanic islands in North Maluku Province. Literature review and spatial data collection were carried out to determine the parameters used in the identification of small volcanic islands. Based on the literature review, this study uses 5 (five) parameters, namely the island area, the type of material, the location / morphoaransement, the pattern of river flow, and the features of the landforms which include the presence of volcanic landform (morphochronology), slope, and morphology. Based on the spatial analysis using these 5 parameters, information is obtained that there are at least 6 of the 17 islands that meet the criteria to be called small volcanic islands in North Maluku. Data on small volcanic islands and their characteristics are important information to educate the public and improve preparedness.Keywords: morphology, morphogenesis, morphochronology, morphoaransement, small volcanic islands
FLOOD MODELLING OF BADENG RIVER USING HEC-RAS IN SINGOJURUH SUB DISTRICT, BANYUWANGI REGENCY, EAST JAVA, INDONESIA Syamsul Bachri; Yulius Eka Aldianto; Sumarmi Sumarmi; Kresno Sastro Bangun Utomo; Mohammad Naufal Fathoni
JURNAL GEOGRAFI Vol 13, No 1 (2021): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v13i1.19211

Abstract

The flood disaster is a severe threat in Indonesia due to the enormous impacts on environmental degradation, social and economic sectors. One flood event due to the overflow is the Badeng River's flooding in 2018 at Singojuruh Subdistrict, Banyuwangi Regency. The flood had a detrimental impact on the local community, especially on agricultural land and residential. Anticipatory steps need to be taken to minimize losses due to flooding in the future. Inundation modelling in this research is purposed to predict flood hazards. Hence it can have appropriate anticipatory steps in the future. The software used to model the inundation in this study was the HEC-RAS Program. Data needed in this study are river geometry, manning coefficient, and maximum daily rainfall from the year 2010 until 2019. The research e stages in this study consist of (1) Calculation of watershed morphometry, (2) Calculation of average regional rainfall, (3) Calculation of rainfall plan, (4) Rain Data Suitability Test, (5) Calculation of Rain Intensity, (6) Calculation of Flood Discharge Plan, (7) Geometry Modelling, (8) Extraction of Manning Coefficient, and (9) Inundation Simulation. The results of the Gama 1 method's peak discharge plan showed an increase in each return period. The area with the highest level of susceptibility around the Badeng River occurs in Alasmalang Village, Singojuruh Subdistrict. This area has the smallest river storage capacity than other river crossings. Hence it has the most significant potential for flooding.Keywords: inundation modelling, flood, HEC-RAS, Badeng RiverBencana banjir menjadi ancaman serius bagi negara Indonesia karena memberikan dampak yang besar terhadap kerusakan lingkungan, sosial maupun ekonomi. Salah satu kejadiannya adalah banjir yang terjadi akibat luapan sungai Badeng pada tahun 2018 di Kecamatan Singojuruh, Kabupaten Banyuwangi. Kejadian Banjir tersebut memberikan dampak yang merugikan bagi masyarakat setempat, terutama pada lahan pertanian dan permukiman. Langkah antisipasi perlu dilakukan untuk meminimalisir kerugian akibat bencana banjir di masa mendatang. Pemodelan genangan dalam penelitian ini dibuat bertujuan untuk  memprediksi bahaya banjir, sehingga dapat dilakukan langkah antisipasi yang tepat. Software yang digunakan untuk memodelkan genangan dalam penelitian ini adalah Program HEC-RAS. Data yang dibutuhkan berupa data geometri sungai, koefisien manning dan curah hujan harian maksimum selama periode tahun 2010 sampai 2019. Beberapa tahapan dalam penelitian ini meliputi (1) Perhitungan morfometri DAS, (2) Perhitungan hujan rerata wilayah, (3) Perhitungan curah hujan rencana, (4) Uji Kesesuaian Data Hujan, (5) Perhitungan Intensitas Hujan, (6) Perhitungan Debit banjir rencana, (7) Pemodelan geometri, (8) Ekstraksi angka kekasaran manning, dan (9) Simulasi Genangan. Hasil perhitungan debit puncak rencana metode Gama 1 menunjukkan peningkatan pada setiap periode ulang. Daerah yang mempunyai tingkat kerawanan paling besar adalah areal sekitar Sungai Badeng yang berada di Desa Alasmalang Kecamatan Singojuruh. Daerah ini memiliki kapasitas tampung sungai yang paling kecil daripada penampang sungai yang lainnya, sehingga memiliki potensi terjadinya banjir paling besar. Kata kunci: pemodelan genangan, banjir, HEC-RAS, Sungai Badeng

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