cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Indonesian Journal of Geography
Published by Universitas Gadjah Mada
ISSN : 00249521     EISSN : 23549114     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, human geography, regional planning and development, cartography, remote sensing, and geographic information system. IJG publishes its issues three times a year in April, August, and December.
Arjuna Subject : -
Articles 633 Documents
 60   61   62   63   64 
Spatiotemporal Characteristics and Trend of Puting Beliung Across the Indonesian Archipelago Kiki, Kiki; Koesmaryono, Yonny; Hidayat, Rahmat; Perdinan, Perdinan; Permana, Donaldi Sukma
Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.103901

Abstract

Puting beliung (PB), or small-scale tornado, is a significant and under-researched extreme weather phenomenon in Indonesia, often causing severe damage to infrastructure and posing risks to public safety despite their brief localized nature. Therefore, this research aimed to examine spatial and temporal patterns and trends of PB events across Indonesia from 2011 to 2024, applying statistical analysis, geospatial mapping, and the Mann-Kendall trend test to a database of 2,434 PB events. The results showed that PB events primarily cluster in western and central regions, specifically on Java Island, and the highest frequencies were observed in East Java, West Java, and Central Java. These events typically occur in low-lying zones (0–500 meters above sea level), affecting agricultural and residential land in flat terrain. Temporally, most PB arises in the afternoon (1:00–3:00 pm local time), with peak frequencies in January, March, and November, coinciding with Indonesian monsoonal and transitional seasons. A trend analysis shows a statistically significant nationwide yearly increase of approximately 12 PB events, with 8 provinces exhibiting notable upward patterns. When compared to other PB-prone nations, Indonesia records a higher annual PB frequency than Japan, Australia, and Bangladesh, but remains well below the United States. The novelty of this research lies in its long-term, nationwide dataset and thorough spatiotemporal assessment, providing the first comprehensive examination of PB trends at national and provincial scales in Indonesia. These results provide crucial insights for disaster risk mapping, mitigation strategies, and early warning systems.
Low-Cost Sensor Based on Internet of Things for PM₂¸₅ Air Quality Monitoring Santoso, Dian Hudawan; Santosa, Sri Juari; Sekaranom, Andung Bayu
Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.104159

Abstract

The issue of air pollution, particularly that of particulate matter (PM2.5), has recently garnered significant global attention. However, the implementation of effective air quality management is frequently impeded by a dearth of adequate monitoring and measurement equipment. In Yogyakarta City and its surrounding areas, monitoring ambient air concentration, particularly PM2.5, remains difficult due to the limitations of monitoring tools such as Air Quality Monitoring System (AQMS). These tools are costly to operate, which further worsens the challenges. Therefore, this research aimed to design Internet of Things (IoT)-based Low-Cost Sensor (LCS) as an economical and reliable alternative to PM2.5 monitoring tools. Research and Development method was used with Plomp development model, which included investigation, design, calibration, as well as implementation. The results showed that IoT-based LCS followed the SNI 9178: 2023 standard with precision (SD 0.659 µg/m³; CV 23.59%), bias (slope 0.94; intercept 0.65 µg/m³), linearity (R² = 0.9), and RMSE 1.43 µg/m³. Moreover, the regression relationship between IoT-based LCS and AQMS was shown by the equation Y = 0.8633X + 2.7604, signifying a strong correlation between the two tools. During the analysis, IoT-based LCS appeared to be a promising solution for air quality monitoring, offering both effectiveness and affordability, with real-time data relevant to environmental management.. The IoT-based LCS has been designed simply, meets the calibration standards of SNI 9178:2023, and can be applied in suburban areas.
Evacuation Model of Earthquake in Multi-Storey Building using 3D GIS and Agent-Based Model Arifati, Azmiyatul; Nisaa', Ratri Ma'rifatun; Nurmaya, Acintya; Wardana, Randy Alihusni
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.92295

Abstract

Evacuation simulations in multi-storey building using 3D GIS and ABM require further study. Existing models lack comprehensive input on various building attributes. This research aims to develop a model for simulating earthquake evacuations in multi-storey buildings. The building and its occupants (agents) are modeled in detail, with building dimensions and designs obtained through measurements and field surveys. A field observation was conducted to determine agent's distribution. Agents placed in the building model are given certain behaviors once evacuation begins. The research focuses on a multi-storey building at Universitas Gadjah Mada (UGM). The model can assess the effectiveness of current evacuation facilities. Computer simulation results show that 266 agents require 140.8 seconds to evacuate, with no bottleneck observed at any location. A guest agent, assumed to lack knowledge of the building’s emergency information, is observed to exit last. In contrast, the fastest evacuation is achieved by agents familiar with the building, represented by a group of lecturers/staff. Model validation, through comparison with a drill simulation, shows a time difference of 0.45 seconds. Findings indicate that, under current scenarios, the building’s evacuation facilities have adequate capacity. 
Challenges of Tsunami Risk Reduction on the Serang West Coast Akhirianto, Novian Andri; Tiwi, Dwi Abad; Astisiasari, Astisiasari; Putra, Ahmad Pratama; Umbara, Raditya Panji; Shomim, Achmad Fakhrus; Ganesha, Deliyanti; Utari, Enggar
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.94996

Abstract

The 2018 Sunda Strait tsunami that was not sourced from tectonics earthquakes hit the west coast of Serang Regency as one of the affected areas. On this account, addressing the tsunami risk in this region shall be done wisely through the Disaster Risk Reduction (DRR) effort. This research aims to firstly examine the DRR that has been implemented after the 2018 tsunami, and secondly identify the internal and external environmental factors, as valuable input in developing the strategies on enhancing the tsunami resilience. This research has a qualitative descriptive study, using primary and secondary data sources. The data collection techniques employ the literature studies, interviews, FGDs, and field observations. Furthermore, this study applies SWOT analysis to identify the internal and external environmental factors. The results indicate the progresses made in tsunami DRR on the west coast of Serang Regency. However, although policies for coastal area planning and management have been established, there is still a need for community socialization, proper implementation, and enforcement of the law. Moreover, both of robust tsunami early warning system and public education on vandalism prevention is also needed. Finally, the results of identifying the internal and external environmental factors show that there are 3 strengths, 3 weaknesses, 3 opportunities and 3 challenges. Accordingly, the results of this identification can be used to formulate advance strategies in increasing the tsunami resilience on the west coast of Serang Regency. Received: 2024-03-20 Revised: 2024-05-03 Accepted: 2025-12-03 Published: 2025-12-04
Optimization of Marine Activities Based on Spatial Regional Planning and Geographical Approaches: A Case Study of Tol Laut Program in Indonesia Djunarsjah, Eka; Munaf, Dicky Rezaldy; Putra, Briantara Revidinda; Pamungkas, Bagaskoro; Roup, Gabriella Azzahra; Mirenza, Adinda Dheren; Wisayantono, Dwi; Julian, Miga Magenika; Muhammad, Fickrie; Putra, Andika Permadi; Lubis, Nafandra Syabana
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.95684

Abstract

Tol Laut is a marine activity that manages the maritime highway system in Indonesia to ensure and improve connectivity within the national logistics and supply chain system. This system arises because of the inequality of economic growth and development between several regions and provinces. The purpose of this program is to reduce high price disparities so that equity across regions can be achieved. However, this system has not run optimally. The performance of the program, which has entered its eighth year, is still less than 30%. Many problems arise that persist in causing the high price of goods. Hence, this study will identify the causes of the suboptimal Tol Laut by using spatial and geographic approaches on a sample of T-3 shipping route. Based on the spatial approach, it is found that the route is not optimal, so a strategy is obtained to create a new optimal route by producing a more efficient distance of 51,148 nm and a more effective time of 2 hours 18 minutes. Based on the geographical approach, the economic, social, and cultural factors that influence it were obtained. The identification of economic factors shows that high insurance premiums cause price disparities. Through this research, a strategy to produce more efficient and effective tariffs is obtained so as to reduce high disparities. This is important because Tol Laut is national strategic project that needs to be maintained.Received: 2024-04-30 Revised: 2025-08-15 Accepted: 2025-12-03 Published: 2025-12-04
Land Degradation Assessment Model Using Field Assessment And RUSLE Methods In Wai Ruhu Watershed, Ambon Island, Mollucas Province Talakua, Silwanus Matheus; Osok, Rafael Marthinus
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.98955

Abstract

Land degradation due to erosion is a serious threat to land sustainability of small tropical islands in Maluku, Indonesia. The current research was carried out in the Wai Ruhu Watershed, Ambon Island, Maluku; it was a part of studies conducted in Maluku in order to develop a suitable land degradation assessment model based on local conditions. Soil loss as the indicator of land degradation were determined using Stocking’s field assessment and RUSLE methods. The study found that land degradation rates in the study area using field indicators ranged from the lowest soil loss 4.40–19.15t/ha/yr to the highest 202.84-675.62t/ha/yr, while the RUSLE method ranged from 0.11-16.92t/ha/yr to the highest 287.63-4207.41t/ha/yr. The developed land degradation model (LD) due to erosion LD = 0.1499xR1.000 xK0.0026xLS0.0933xC0.133xP1.000xBd0.700xAv-0.652 is statistically significant because their p-values equal 0.000 with high R2 of 82,5% at a confidence level of 95%. The second model was also produced with a correction factor of 0.2158, so LD = 0,2158xRxKxLSxCxP, where LD= land degradation (tons/ha/yr), R = rain erosivity value (ton.m/ha/cm-rain), K= soil erodibility index, LS= slope length and steepness factor index, C= plant or vegetation or land use factor index, P= soil conservation practices factor index, Bd= soil bulk weight factor (g/cm3), and Av= vegetation/plant or land use stage factor (years). These results promote the importance fact that the Stocking’s land degradation field assessment indicators could be considered as a suitable land degradation assessment model for the specific local condition of small islands in Maluku.Received: 2024-08-06 Revised: 2025-12-11 Accepted: 2025-12-31 Published: 2025-12-31 
Mapping Food Security in Indonesia: Geographic Clusters and Regional Disparities Abdulah, Rusli
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.99419

Abstract

Food security has become a global issue, and represents the first of the Sustainable Development Goals, which is zero hunger. Many countries, including Indonesia, have set food security as the central policy on their development agenda. There has been some research into food security issues, but primarily this has no spatial context. This research identifies spatial clusters—high-high, low-low, high-low, and low-high—across four food security measures: the Food Security and Vulnerability Atlas, the Dietary Diversity Score, the Food Variety Score, and the Calorie Intake. It explores 514 districts in Indonesia for 2019 using Exploratory Spatial Data Analysis (ESDA, Global Moran’s I) and Local Indicators of Spatial Association (LISA). The data for measuring food security come from SUSENAS (the National Socio-Economic Survey), Statistics of Indonesia and the National Food Agency. The research reveals the presence of regional food security in Indonesia. Eastern Indonesia faces challenges from food insecurity issues. The LISA result shows that there are low-low clusters in eastern Indonesia because of geographical isolation, poor economic performance, and a lack of infrastructure. Conversely, high clusters in western Indonesia, especially in Java Island, benefit from favorable agricultural conditions, a robust infrastructure, and diverse food markets. High-low clusters highlight that there are urban centers with better food access amidst less secure areas, while low-high clusters face economic and logistical challenges despite being near food-secure regions. This local analysis offers nuanced insights beyond the results of a standard ESDA, emphasizing the need for tailored policies to address regional disparities. Future research should explore the determinants of food security using spatial and non-spatial econometric approaches and should apply convergence analysis to identify the factors driving prosperous regions, providing benchmarks for enhancing food security across all districts.
Socio-economic Transformation and Agrarian Adaptation: Mahaweli System H, Sri Lanka M., Dharmasiri, L.; P, Jayathilake; Nishanthi, Karunaraj; K, Danasekara D.R.A.; C, Kanchana, R.A.; S, Ranwella, K.B.I.; G, Amarasinghe, A.; S, Rathnasekara,
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.99561

Abstract

The global agricultural transition has created class divisions between the wealthy bourgeoisie and the laboring proletariat, thereby strengthening capitalist structures. Sri Lanka reflects this shift as it moves from subsistence to market-driven farming through policy and technological changes. The Mahaweli System H Area shows this transformation in land ownership, income, and livelihoods. Through a comprehensive investigation into the socio-economic changes in System H, this study examines the adaptive strategies employed by settlers to navigate these shifts. The mixed-method approach using the Convergent Parallel Design was applied, including semi-structured questionnaire survey and field observations. The survey was conducted with 40 settlers selected using a stratified random sample, with the consultation of the Mahaweli Residential Project Manager’s Office. The sample size was determined using a Standard Proportion-based formula with an 80% confidence level and 10% margin of error. The research identified four income categories: Higher Income (HI), Medium Lower Income (MLI), Lower Higher Income (LHI), and Lower Income (LI), illustrating the bourgeoisie and proletariat classes. Dynamic settlers expose adaptability and innovation, while conventional settlers maintain traditional practices, highlighting a socio-economic landscape. The study highlights the ongoing struggle of marginalized settlers and the complex interplay among socio-economic structures, government interventions, and individual resilience. While socio-economic dynamics persist within the framework of the bourgeoisie and proletariat, immediate radical transformations appear unlikely. The findings shed light on the difficulties of agrarian societies and offer insights into addressing vicious poverty in agrarian communities.
Spatial-temporal Analysis Distribution of Buildings Martapura River Border in Banjarmasin City Muhaimin, Muhammad; Aristin, Nevy Farista; Kamil, Ahmad; Adyatma, Sidharta; Saputra, Aswin Nur
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.100341

Abstract

The role of the people of Banjarmasin City has long made the river a center of activity that has a ‎dependence on river culture as a way of life, behavior, and adaptation the river boundary for ‎generations, including the construction of buildings. This activity has an impact on the ‎uncontrollability of buildings. And the function of the river. The study aimed to assess the ‎extent of the distribution and non-conformity of buildings with river boundary regulations stipulated in Banjarmasin City Regional Regulation No. 31/2012 concerning the Determination of ‎Regulation and Utilization of Rivers and Former Rivers. The method used is descriptive quantitative ‎with spatial analysis techniques on visual image interpretation and river area buffering within 15 ‎meters of the left and right banks of the river. Data analysis used an overlay technique to determine the ‎number of buildings within the Martapura River boundary line in Banjarmasin City. The results showed ‎that, over 15 years from 2008 to 2023, the built-up land area changed by an average of 1.30 hectares. Based on the type of built-up land, the most dominant is residential buildings. Non-conforming buildings in 2008 totaled 3,518 buildings, in 2013 totaled 3,365 buildings, in 2018 totaled ‎‎3,321 buildings, and in 2023 totaled 3,301 buildings. The decrease in non-conforming buildings ‎occurred periodically in Central Banjarmasin District, and the increase in the number of non-conforming buildings was spread in South Banjarmasin District and North Banjarmasin District‎.Received: 2024-10-01 Revised: 2025-11-10 Accepted: 2025-12-11 Published: 2025-12-22  
Climate Change Scenarios for Central Iran (2030-2100) Sadatinejad, Seyyed Javad; Soleimani Sardoo, Farshad; Mirzavand, Mohammad; Haryono, Eko
Indonesian Journal of Geography Vol 57, No 3 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.101030

Abstract

This study examines the impact of climate change on key climatic parameters—temperature, rainfall, and wind speed—in Iran’s central plateau, a region highly vulnerable to climate variability. Long-term data from major synoptic stations in Isfahan, Kerman, Yazd, and Semnan were analyzed using the Statistical Downscaling Model (SDSM) with the CanESM2 model. Future climate conditions were projected for the mid-century (2030–2060) and end-century (2070–2100) periods under RCP2.6, RCP4.5, and RCP8.5 scenarios. The analysis indicates a general warming trend across all stations, with changes in precipitation and wind speed that vary spatially. In the near future, some stations are expected to experience reduced rainfall and an average temperature increase of 1–2°C, while others may see slight precipitation increases. Wind speed trends also vary regionally. This study provides a comprehensive multi-variable assessment for a region with limited prior analysis, integrating projections for temperature, rainfall, and wind speed under multiple scenarios. Furthermore, this study is among the first to combine the SDSM and CanESM2 models to assess multi-variable climate change impacts in Iran’s arid central plateau. The results offer a concise summary of anticipated climate changes, without providing detailed interpretation or policy recommendations, thereby establishing a solid foundation for further research and planning.Received: 2024-10-30 Revised: 2025-09-17  Accepted: 2025-11-16 Published: 2025-11-17

Page 62 of 64 | Total Record : 633

 60   61   62   63   64 

Filter by Year

1986 2026


Reset
Filter By Issues
All Issue Vol 58, No 1 (2026): In Progres Vol 57, No 3 (2025): Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography Vol 57, No 1 (2025): Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography Vol 56, No 2 (2024): Indonesian Journal of Geography Vol 56, No 1 (2024): Indonesian Journal of Geography Vol 55, No 3 (2023): Indonesian Journal of Geography Vol 55, No 2 (2023): Indonesian Journal of Geography Vol 55, No 1 (2023): Indonesian Journal of Geography Vol 55, No 1 (2023): IN PROGRES Vol 54, No 3 (2022): Indonesian Journal of Geography Vol 54, No 2 (2022): Indonesian Journal of Geography Vol 54, No 1 (2022): Indonesian Journal of Geography Vol 53, No 3 (2021): Indonesian Journal of Geography Vol 53, No 2 (2021): Indonesian Journal of Geography Vol 53, No 1 (2021): Indonesian Journal of Geography Vol 52, No 3 (2020): Indonesian Journal of Geography Vol 52, No 2 (2020): Indonesian Journal of Geography Vol 52, No 1 (2020): Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography Vol 51, No 2 (2019): Indonesian Journal of Geography Vol 51, No 1 (2019): Indonesian Journal of Geography Vol 50, No 2 (2018): Indonesian Journal of Geography Vol 50, No 1 (2018): Indonesian Journal of Geography Vol 49, No 2 (2017): Indonesian Journal of Geography Vol 49, No 1 (2017): Indonesian Journal of Geography Vol 48, No 1 (2016): Indonesian Journal of Geography0 Vol 48, No 2 (2016): Indonesian Journal of Geography Vol 48, No 1 (2016): Indonesian Journal of Geography Vol 47, No 2 (2015): Indonesian Journal of Geography Vol 47, No 1 (2015): Indonesian Journal of Geography Vol 46, No 2 (2014): Indonesian Journal of Geography Vol 46, No 1 (2014): Indonesian Journal of Geography Vol 45, No 2 (2013): Indonesian Journal of Geogrphy Vol 45, No 1 (2013): Indonesian Journal of Geography Vol 44, No 2 (2012): Indonesian Journal of Geography Vol 44, No 1 (2012): Indonesian Journal of Geography Vol 43, No 2 (2011): Indonesian Journal of Geography Vol 43, No 1 (2011): Indonesian Journal of Geography Vol 42, No 2 (2010): Indonesian Journal of Geography Vol 42, No 1 (2010): Indonesian Journal of Geography Vol 41, No 2 (2009): Indonesian Journal of Geography Vol 41, No 1 (2009): Indonesian Journal of Geography Vol 40, No 2 (2008): Indonesian Journal of Geography Vol 40, No 1 (2008): Indonesian Journal of Geography Vol 39, No 2 (2007): Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography Vol 37, No 2 (2005): Indonesian Journal of Geography Vol 37, No 1 (2005): Indonesian Journal of Geography Vol 36, No 2 (2004): Indonesian Journal of Geography Vol 36, No 1 (2004): Indonesian Journal of Geography Vol 35, No 2 (2003): Indonesian Journal of Geography Vol 26, No 28 (1994): Indonesian Journal of Geography Vol 21, No 62 (1991): Indonesian Journal of Geography Vol 21, No 61 (1991): Indonesian Journal of Geography Vol 20, No 60 (1990): Indonesian Journal of Geogrphy Vol 20, No 59 (1990): indonesian journal of geography Vol 18, No 56 (1988): Indonesian Journal of Geogrphy Vol 18, No 55 (1988): Indonesian Journal of Geogrphy Vol 16, No 52 (1986): Indonesian Journal of Geography Vol 16, No 51 (1986): Indonesian Journal of Geogrphy More Issue