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All Journal Jurnal Geografi Geosfera: Jurnal Penelitian Geografi
Indrawan Indrawan
School of Geography, Earth and Atmospheric Sciences, The University of Melbourne
Earth & Planetary Sciences Education Environmental Science Social Sciences Other

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Visualization of Volcanic Landform with Augmented Reality Rakhmat Jaya Lahay; Indrawan Indrawan; Mohamad Fachri Bokingo; Merlin Lauhi; Puspita Rahmat
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.v15i2.43460

Abstract

Visualization of volcanic landforms with digital elevation model (DEM) data on the GIS desktop computer has limitations regarding access to the software display function and its use outside the room. This obstacle can be overcome by combining GIS and mobile augmented Reality. However, using digital elevation model data and satellite imagery in augmented reality software has not been widely explored. This study shows a practical way of integrating geospatial data with mobile augmented reality software. This research aims to create an augmented reality prototype to visualize virtual volcano objects. DEM data and satellite imagery create 3-dimensional (3D) objects and provide texture characteristics of volcanic landform objects. Visualization of volcanic landforms is done through an augmented reality (AR) application prototype on an Android smartphone. The experimental results show that augmented reality technology effortlessly combines DEM data and land features from satellite imagery. Evaluation of a smartphone device's manufacturing and installation stages shows results with a "successful" status. Through follow-up testing nine times, the AR prototype showed positive performance in all aspects of distance, angle, and lighting. The final test scenario in the form of responses regarding the application from other users obtained an average value of the "Good" category of 92.8%. In conclusion, these results indicate that the system built can be used in learning. However, further research requires more diverse test scenarios to see how far this application prototype can be used in various conditions. Keywords: Digital Elevation Model, GIS, Augmented Realit, 3D Visualization 
Students’ Perceptions of Flood Mitigation at SMA Negeri 6 Anggrek District Dewi Sartika Macmud; Fitryane Lihawa; Ramla Hartini Melo; Indrawan Indrawan
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.39044

Abstract

Floods are among the most frequent natural disasters in Indonesia and continue to disrupt educational activities, particularly in schools located in flood-prone areas. Strengthening students’ awareness and preparedness is therefore essential for enhancing school resilience and reducing disaster risk. This study aimed to examine students’ perceptions of flood disaster mitigation at SMA Negeri 6 Anggrek, North Gorontalo Regency, Indonesia, and to identify the relationship between their perceptions and preparedness levels. A quantitative descriptive approach was employed involving 191 students selected using proportional sampling. Data were collected through a Likert-scale questionnaire consisting of five indicators: understanding, attitude, preparedness, participation, and evaluation of school flood mitigation programs. Descriptive statistical analysis was conducted using mean score calculations for each indicator. The findings revealed that students demonstrated positive perceptions of flood disaster mitigation, reflected in good scores for understanding (3.82), attitude (3.74), participation (3.88), and evaluation of mitigation programs (3.70). However, preparedness obtained a lower mean score (2.95), indicating a moderate level of readiness. These findings highlight a gap between students’ positive perceptions and their practical preparedness for flood emergencies. The results suggest that knowledge and positive attitudes alone are insufficient to ensure disaster readiness without regular simulation activities, evacuation drills, and experiential disaster education. Strengthening school-based disaster preparedness programs is therefore essential to improve students’ capacity to respond effectively to flood hazards.
Co-Authors Dewi Sartika Macmud Fitryane Lihawa Merlin Lauhi Mohamad Fachri Bokingo Puspita Rahmat Rakhmat Jaya Lahay Ramla Hartini Melo