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M Taufik Rahmadi
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INDONESIA
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 324 Documents
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Identification of Fault Zone in Bali Using GGMPlus Gravity and Alos-2 Palsar-2 Data Pratama, I Putu Dedy; Osawa, Takahiro; As-Syakur, Abd Rahman
JURNAL GEOGRAFI Vol. 15 No. 1 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i1.40772

Abstract

The local active fault in Bali has a small magnitude (M<5) but has destructive potential because it is very close to residential areas. Mapping the fault area on Bali is needed to identify the parameters of faults. This study used gravity data from GGMplus, topographic data from DEMNAS, and lineaments using ALOS-2 PALSAR-2 data. Validation and interpretation using the geological map of Bali and seismicity data. We interpret the subsurface using the gravity derivative method to identify the type of fault movement. Identify fault locations using lineament extraction from SAR data processed by directional filters. The composite image red-green-blue (RGB) for HH, HV, and VV polarization was used for automatic lineament extraction and then corrected manually. The results of the gravity method succeeded in identifying 29 of the 30 faults from the geological map of the Bali sheet and a new spot from PALSAR-2. Bali land has 12 thrust faults, 11 strike-slip faults and six normal faults. The image of PALSAR-2 (L band) has succeeded in making a fault lineament map for the Bali region. The lineament extraction results from PALSAR-2 obtained four new faults (Pesanggaran, Sepang, Tegal Badeng, and Banyuwedang), while four faults were not identified (Tampaksiring Fault, Plaga, Mambal, and Munduk-Rajasa). NE-SW dominates the strike directions, and the dip angles are 45-80 degrees. We propose 30 faults in Bali, including 26 defects from geological maps with changes in length and location shift and four new marks extracted from automatic lineament.Keywords: Remote Sensing, Earthquake, Derivative Gravity, Lineament, SAR 
Tsunami Susceptibility Assessment Using Spatial Multi-Criteria Evaluation in Watukarung, Pacitan Amri, Ikhwan; Hikmasari, Bella Sinta; Nababan, Cornelius Antoni; Wijayanti, Dessy Ayu; Ruslanjari, Dina; Giyarsih, Sri Rum
JURNAL GEOGRAFI Vol. 15 No. 2 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i2.41767

Abstract

Tsunamis are natural hazards that have the potential to cause significant damage and losses to the South Coast of Java. As the initial foundation for local spatial planning and risk reduction, preparing a tsunami susceptibility mapping is imperative to minimize the disaster's impact. This study aims to identify the spatial distribution of tsunami susceptibility in Watukarung Village, Pacitan Regency, using the Spatial Multi-Criteria Evaluation (SMCE) method. The variables involved in the modeling include landform, elevation, slope, distance from the shoreline, and distance from the river. The value and weight of each factor were determined using the pairwise technique in the SMCE framework. The research results indicated that the tsunami susceptibility in Watukarung comprises four classes: safe (598.40 ha), low (9.68 ha), moderate (23.92 ha), and high (25.13 ha). The areas most prone to tsunamis are generally identified in the southern part of Watukarung, which is generally associated with beach or alluvial plain landforms, very close to shore, and low land elevation. Ironically, human settlements and coastal tourism are overgrowing in the tsunami-prone zone, highlighting that risk reduction measures must be implemented optimally to anticipate tsunami hazards. As a recommendation, further research must be carried out to comprehensively represent the tsunami risk in the Watukarung coastal region. Keyword: Tsunami, Susceptibility, Spatial Multi-Criteria Evaluation, Watukarung, Pacitan 
Assessment of Landslide Vulnerability in Urban Areas Using GIS and Remote Sensing: A Study in Ambon City Lasaiba, Mohammad Amin; Tetelepta, Edward Gland; Ansiska, Paisal
JURNAL GEOGRAFI Vol. 16 No. 1 (2024): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v16i1.41978

Abstract

Slope stability and land movements, commonly referred to as landslides, are natural hazards that involve the shifting of materials like soil, rock, and debris, primarily caused by the force of gravity. This research utilized both qualitative and quantitative approaches, focusing on spatial analysis by examining primary and secondary data derived from satellite imagery, observations, and pertinent institutions. Processing of the collected data using specialized software like Global Mapper 20, ArcGIS 10.8.1, and ER Mapper 8.1. The findings of this investigation disclosed that a significant portion of Ambon City, roughly 51.63% of its area, exhibited high susceptibility to landslides. Conversely, only about 16.26% of the total area demonstrated very low or low vulnerability. Similar trends were observed in urbanized regions, where the majority, around 39.01%, were classified as highly vulnerable (Z-4). In contrast, approximately 35.09% showed very low vulnerability (Z-1), and 11.89% depicted low vulnerability (Z-2). The study's findings clearly highlight a critical situation in Ambon City, where a substantial 89% of its territory, characterized by mountainous landscapes, is experiencing a markedly increased frequency of landslides. Given these concerning insights, it is absolutely essential for government authorities to engage in rigorous spatial planning. This should involve redirecting development efforts towards areas identified as safer, away from high-risk zones. Furthermore, the government must enforce and adhere to policies that not only mitigate landslide risks but also promote sustainable development, ensuring the long-term safety and resilience of Ambon City against such natural disasters.Keywords: Mapping, Landslide, Vulnerability, Build Area
The Role of Geography Education Lecturers in Measuring Students' Basic Literacy and Numeracy Skills at SDN Pujut District, Central Lombok Regency Junaidin, Junaidin; Sanisah, Siti; Herianto, Agus; Prasad, Ravinesh Rohit
JURNAL GEOGRAFI Vol. 15 No. 1 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i1.42453

Abstract

The strategy to improve the quality of education in schools is to improve the management of literacy culture. Literacy refers to the process of reading, writing, and speaking to build, integrate, and critique meaning. Many researchers studied teachers' role in improving elementary school students' literacy and forgot how lecturers also have an essential role. This study aims to identify geography education lecturers' role in measuring students' basic literacy and numeracy skills at SDN Pujut District, Central Lombok Regency. Research Methods use descriptive qualitative. Interviews, observation, and descriptive analysis of documents by purposive sampling obtained data. To increase the credibility of research informants using the principle of data saturation. The results of this study show that students' literacy and numeracy skills are still low because teachers' ability in Central Lombok Regency is also considered to have decreased, so the support of parents is considered a servant. This research also shows that the role of geography education lecturers is very significant in measuring literacy and numeracy skills applied to all fields of learning in an integrated manner so that the roles of teachers and lecturers both have an essential role in measuring the literacy and numeracy of elementary school students.Keywords: Lecturer Role, Literacy Ability, Basic Numeracy of Students 
Islamic Political Communication System Mapping Millennial Muslim Geopolitics on Social Media in Facing the 2024 Presidential Election Sazali, Hasan; Rubani, Mardhiah; Ismandianto, Ismandianto; Misrah, Misrah; Santos Navarro, Charles Julian
JURNAL GEOGRAFI Vol. 15 No. 1 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i1.42477

Abstract

In political preferences, religion plays a vital role as a consideration for the millennial generation. This is because Indonesia still considers religion in setting policies as it does in political parties and general elections. This study analyzes the political communication system of millennial Muslim Islam on social media in the face of the 2024 presidential election (netnographic analysis). This study applies the netnographic research method through a qualitative approach to understand how the Islamic political communication system works in millennial Muslim society on social media and the geopolitics of millennial Muslims in Indonesia in the face of the 2024 presidential election. Data collection uses analytics related to election data”President in 2024. The study results show that the application of political communication among millennial Muslims on social media is in the form of support and criticism on the hashtag #pemilu2024. Social media proves that distance and time limits are not obstacles to voicing opinions, criticizing and supporting each other. Several things that can be done to map Islamic political communication systems and millennial Muslim geopolitics on social media include: (1) Analyze Islamic political trends that occur on social media, such as Twitter, Facebook, and Instagram, by searching for keywords related to Islamic politics and monitor how communication patterns are between Muslim millennials; (2) Understanding millennial Muslim sentiments on social media by reading and monitoring conversations on social media; and (3) understand the patterns used in communicating, taking into account the type of content they share, the frequency of social media use, as well as the most used platforms. Too much social media reach without knowing boundaries makes social media challenging to control. The strength of political competition becoming increasingly evident must be accompanied by carefulness in filtering information not to complicate the situation. As millennials amid vulnerable hostilities, they should be able to become pioneers or fortresses in avoiding the opposing currents of the impact of social media in political times.Keywords: Political Communication, Millennial Muslims, Geopolitical Mapping, Social Media, Presidential Election
Detection Of The Thermal Front Using The Cayula-Cornillon Alghorithm: A Case Study Of The State Fisheries Management Area 713, Indonesia Yusuf, Muhammad; Maddatuang, Maddatuang; Malik, Abdul; Sukri, Irwansyah; Andariana, Andi
JURNAL GEOGRAFI Vol. 16 No. 2 (2024): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v16i2.42555

Abstract

Thermal fronts are pivotal in shaping the marine ecosystem, influencing the presence and distribution of marine species. This study delves into the fluctuating patterns of thermal fronts in Indonesian waters, specifically focusing on the State Fisheries Management Area of the Republic of Indonesia, known as WPPNRI, 713. We identified the distribution and frequency of thermal fronts across different monsoon seasons. Utilizing the extended Cayula Cornillon Algorithm “ Single Image Edge Detection (CCA-SIED), we deploy a precise methodology for detecting these fronts, relying on sea surface temperature (SST) gradients to identify specific periods and regions. Our analysis encompasses extensive satellite data collected from Moderate Resolution Imaging Spectroradiometer (MODIS) level 3. Our findings unveil distinct seasonal variations, with a decrease in thermal fronts during the west monsoon and a surge during the east monsoon. Moreover, we identify regional disparities, with denser thermal fronts observed in the southern and middle regions compared to the northern areas. Furthermore, our study underscores the critical need to integrate oceanographic data with fisheries management strategies to address the impacts of climate variability on marine resources. The observed relationships between thermal fronts, nutrient distribution, and fish migration emphasize the necessity for ongoing, localized monitoring to develop adaptive management solutions. This research marks a significant step in characterizing thermal fronts in WPPNRI 713, laying the groundwork for future investigations into other ecologically significant fronts, including those related to chlorophyll, salinity, and nutrients, thereby enhancing our understanding of marine ecosystem dynamics.Keywords: Cayula Cornillon; Fishing Zone; Marine Ecosystem; Sea Surface Temperature; Thermal Fronts
Vegetation and Built-Up Area Monitoring in Bandung City Using Multitemporal Imagery Himayah, Shafira; Ramadhan, Zidan; Salma, Ghina Yusriyyah
JURNAL GEOGRAFI Vol. 15 No. 1 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i1.42656

Abstract

Bandung is West Java's largest metropolitan city and Indonesia's third largest. The city of Bandung is very strategic in various aspects, such as accessibility, communication, public facilities, and the economy. The Increased population in Bandung indicates more complex ongoing human activities, which can then affect changes in land use. The land covers in urban areas tends to change more drastically over a short period e than in rural areas because of rapid urbanization. Therefore, urban phenomenon changes are ideally monitored and detected from satellite images with a multitemporal resolution. Vegetation greenness and built-up areas can identify through multitemporal remote sensing imagery. Changes in vegetation and built-up area can monitor using remote sensing with multitemporal imagery. The analysis of changes in vegetation and built-up area studied in Bandung City represents an area with rapid population growth. This study aims to: 1) Identify changes in vegetation greenness in Bandung City between 2014 and 2021, 2) Identify built-up area changes in Bandung City between 2014 and 2021, 3) Analyze the relevance between vegetation greenness and the built-up area in Bandung City”the correlation between NDBI and NDVI through selected samples is representative of all data in Landsat 8 imagery. The proportion between the values of NDBI and NDVI samples is 0.9034. So, it is concluded that the two variables are positively correlated. Therefore, the study™s results recommend preserving vegetated land cover to conserve natural resources and prevent increased land surface temperature.Keywords: Remote Sensing Imagery, Built-Up Area, Vegetation Greenness, Bandung City
Using Learning Platforms to Support Online Learning in Junior High School Berutu, Nurmala; Hanana, Alna
JURNAL GEOGRAFI Vol. 15 No. 1 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i1.42772

Abstract

The online learning process can be done through various e-learning platforms. The determination of the platform should consider the dimensions of the teacher and those of the students. This study aims to analyze the use of the e-learning platform from the perspective of teachers and students in junior high school. This quantitative research design uses a descriptive method. Participants consisted of 91 teachers and 165 students in Medan City. Data were collected by questionnaire via Google Forms. Quantitative data analysis used descriptive statistics to obtain the percentages for each indicator. Then the presentation of data is done with tables and diagrams. The results showed that teachers and students have different perspectives on each e-learning platform supporting the learning process. Based on the philosophy of teachers and students, it can be stated that 1) teachers and students prefer Google Classroom to Edmodo as an LMS in Online Learning. This is because Google Classroom is easier to use, more interactive, and more efficient; 2) Google Meet is the application most often used and preferred by teachers and students in direct virtual Learning. Even though Zoom Cloud Meeting has a more attractive appearance and features, Google Meet is easier to access and considered to save internet quota; 3) As many as 43% of teachers and 49% of students prefer a combination of Google Classroom, Google Meet, WA Group to support the online learning process. Meanwhile, 41% of teachers and 42% of students prefer a combination of Google Classroom, Zoom Cloud Meeting, and WA Group as an e-learning platform. Only a few teachers and students choose the variety of Edmodo Zoom and WhatsApp groups and the combination of Edmodo, Google Meet, and WhatsApp groups.Keywords: E-Learning Platform, Student Perspective, Teacher Perspective
Mapping of Land Surface Deformation Using Ps-Insar for Disaster Risk Management in the Future Kumalawati, Rosalina; Ali, Syamani D; Yuliarti, Astinana; Raharjo, Jany Tri; Rijanta, Rijanta; Saputra, Erlis; Susanti, Ari; Budiman, Puput Wahyu; Anggraini, Rizky Nurita
JURNAL GEOGRAFI Vol. 16 No. 2 (2024): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v16i2.42810

Abstract

DKI Jakarta is experiencing land subsidence due to overexploitation of its use and the increasing population. It is feared that this decline or deformation will occur in the location of the new national capital. The research objective is "Mapping of Land Surface Deformation using PS-InSAR for Disaster Risk Management in the Future." Quantitative and qualitative research and data collection methods use secondary and primary data. Secondary data in the form of Permanent Scatterers Interferometry Synthetic Aperture Radar (PS-InSAR) Sentinel-1A images to determine soil deformation. Primary data uses a questionnaire to assess disaster risk management. Data analysis uses spatial and statistical analysis. Spatial analysis for land deformation mapping and statistical analysis for risk management. The results showed that the pattern of land deformation before the determination of the location of the capital city of Indonesia was random. On the other hand, after decision-making, it appears to be more systematic and homogeneous in adjacent areas with a decreasing range of about 5 cm per year. Other findings show that disaster risk management carried out by several agencies, especially the problem of land deformation in East Kalimantan, is still far from expectations and very minimal. The findings can be used for future disaster risk management to minimize negative impacts and reduce disaster risk.Keywords: PS-INSAR; Land Deformation; Capital City; Disaster Risk Management
Development of Basic Geology Mobile Learning Based on Android Indonesia Geodiversity Area Riswadinata, Indra; Prasetiyo, Tri Kukuh; Diniyati, Nurul
JURNAL GEOGRAFI Vol. 16 No. 1 (2024): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v16i1.43243

Abstract

Basic Geology is a prior knowledge that needs to be supported by a flexible learning environment through the use of mobile technology. Through the supports of mobile technology, students will gain freedom of access because they can be used anytime and anywhere. The progress and speed of technological development, the ease and practicality of using smartphone devices are the potential, opportunities and challenges for presenting mobile technology in learning. The presence of generation Z who are already familiar with technology has reinforced the need to utilize technology to accommodate them in learning better. The aim of this development research is to produce a learning product in the form of a Basic Geology mobile learning application to support learning anywhere and anytime and to determine the feasibility of the product in terms of media and materials, as well as responses from users. This research uses the Lee & Owens model in developing mobile learning applications. Data was collected using a questionnaire filled out by media experts, material experts and service users in the Indonesian Geodiversity Area. The results of this research are (1) user needs for mobile learning to support Basic Geology learning by providing learning resources and building learning communities, (2) producing Basic Geology mobile learning products, (3) results of feasibility tests by media experts, material experts and Individual, small group and field trials show that mobile learning is suitable for use in learning.Keywords: geodiversity; basic geology; mobile learning

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