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Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 25493094     DOI : https://doi.org/10.15294/jg
Core Subject : Education,
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Jurnal Geografi welcomes authoritative, original, ably illustrated, and well-written manuscripts on any topic of geographical importance related to Indonesian cases as well as others areas in the planet. The Journal publishes Articles, Technical Notes, Rapid Communications, Opinion Papers, Comments/Responses and Corrections
Arjuna Subject : Umum - Umum
Articles 21 Documents
 1   2   3 
Comparison of Sentinel-1A Ascending and Descending Image Processing Results on the Tukul Dam Using SNAP Software Faiz Mahbubi; Sukamta; Prasetyo, Yudo
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 1 (2025): Volume 22 No 1, June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i1.16427

Abstract

This study analysed and compared the accuracy of the results of Sentinel 1A satellite image processing in the ascending and descending orbit directions with SNAP software. The research is located at Tukul Dam, Karanggede Village, Arjosari District, Pacitan Regency, East Java Province, with a range of observation data for one year in 2022-2023. Sentinel 1A satellite image processing uses the Differential Interferometry Synthetic Aperture Radar (DInSAR) method. The results of Sentinel 1A image processing were validated using measurement data from 38 dam surface measurement points that had been measured terrestrial. The accuracy calculation uses the Root Mean Square error (RMSe) to measure the vertical movement of coordinates (Z) from the results of Sentinel 1A image processing in the ascending and descending orbit directions with the actual position in the field measured terrestrially. The result is the RMSe value of vertical movement from the Sentinel 1A image processing in the ascending direction is 0.015m. In comparison, the result of Sentinel lA image processing in the descending orbit direction is 0.234m. Based on the calculation results of the RMSe value of vertical movement, the results of Sentinel 1A image processing in the ascending direction are better used for calculating vertical movement at Tukul Dam.
The ANALYSIS OF TIDAL INUNDATION AND THE AGGLOMERATION OF LOSSES IN THE COASTAL AREA OF BONANG SUB-DISTRICT, DEMAK DISTRICT Adimas Bagus Saputro
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 1 (2025): Volume 22 No 1, June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i1.17929

Abstract

Rob is a disaster whose impact is getting worse due to inappropriate use and management of land in coastal areas, endangering Java's coastal areas which are around 1,000 km long and more than 250 km wide, so that the total area will be threatened. more than 80,000 km of Indonesian coast (Triatmodjo, 1999; Bird and Ongkosongo, 2005). Demak Regency is one of the districts in Central Java which is located on the north coast (Pantura). According to the Demak Regency Central Statistics Agency, settlements in Demak Regency are coastal settlements that are prone to flood disasters, especially in the Bonang District area. The problem of damage due to tides in Demak Province is caused by its geographical location in coastal areas and bordering rivers with almost flat land slopes, and is exacerbated by the reduction in river watersheds due to land conversion. If sea level rise is expected to continue to increase in the long term, there are concerns that flooding due to storms will become more widespread. The impact caused is directly proportional to the area covered by the flood.The method used is a quantitative method with a spatial approach. The research results show that the physiographic conditions of Bonang District, which tend to be flat and have low land elevations, have a significant effect on the area covered by tidal flooding, reaching 71.04% of the total area. With the characteristics of Bonang District as a densely populated area, the resulting estimated losses are even greater. The distance of the moon from the earth also plays a role in determining the height of sea tides, which in turn influences the height of inundation
An Enhancing Community Disaster Resilience in Tourism Villages: Insights from West Nusa Tenggara, Indonesia Osmar Shalih; Heni Marta Diana Matita Putti; Falisha, Sania Indah Kirana Falisha
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 1 (2025): Volume 22 No 1, June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i1.19606

Abstract

Historical records show that Lombok experienced significant damage from a tsunami triggered by geological activity in 1977. Kuta Village, located in southern Lombok, faces a high risk of earthquakes and tsunamis. This research aims to develop mitigation and preparedness recommendations for the area. Data was collected using a community preparedness survey in Kuta Village, observation with town watching, and focus group discussions. The results of the Household Preparedness Survey showed low scores in terms of knowledge, early warning, emergency response plans, and resource mobilization. Mitigation schemes in Kuta Village should prioritize improving both structural and non-structural aspects of the area. Structural measures should involve cooperation between local communities and the district government to maintain coastal vegetation. Non-structural approaches to mitigation include implementing tsunami mitigation measures into village development plans, improving community capacity, strengthening local government, and utilizing community-based early warning systems. To improve community capacity, the establishment of disaster-resilient tourism villages would be beneficial. In addition, promoting disaster-resilient families and raising tsunami awareness through locally sourced knowledge would also be useful.
The Analysis of Hail Based on Atmospheric Conditions and Himawari-9 Satellite: Case Study of Surabaya City, March 20, 2023 Mashuri, Imawan; Amri, Sayful; Aslama Afghani, Fadhli; Muhammad Aslam, Fadhil
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 1 (2025): Volume 22 No 1, June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i1.21942

Abstract

Hail is a rare extreme weather phenomenon in Indonesia. On March 20, 2023, hail occurred in Surabaya City. The research was conducted to analyze the hail based on atmospheric conditions and the Himawari-9 satellite. Analysis of the global scale showed anomalies in sea surface temperature in the Southeast Indian Ocean. Regionally, a monsoon shear line and significant low-level moisture transport from the South Java Sea caused convergence in the Surabaya. Locally, there was a significant increase in relative humidity by 10%, and a surface temperature decrease of 3.2°C resulted in wetter surface weather. The occurrence of hail was also supported by upper air conditions, with four indices (CAPE, LI, TT, and SWEAT) falling within the moderate category. In contrast, CIN was categorized as low, while KI increased from moderate to high. A moderate CAPE index in the mid-level updraft of moist air resulted in the maximum hail size. Clouds reached the freezing level in the mid-level atmosphere at 5048 meters and 4776 meters. The RGB Day Microphysics technique using Himawari-9 satellite imagery identified overshooting tops and a drastic decrease in top cloud temperature reaching -82.5°C, indicating the presence of a strong updraft and the formation of convective clouds that surpassed the freezing level.
The Land Suitability for Settlement in the Coastal Area of Bolaang Mongondow Utara Regency Lamunte, Laras; Maryati, Sri; Yusuf, Daud
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 1 (2025): Volume 22 No 1, June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i1.24109

Abstract

This study aims to evaluate the land suitability for residential development in the coastal areas of Bolaang Mongondow Utara Regency. A spatial analysis approach based on Geographic Information Systems (GIS) was employed, utilizing techniques such as buffering, overlay, and scoring to assess the suitability parameters. The evaluated parameters include slope, soil type, accessibility (Distance to Main Road), land use, distance to coastline, and distance to river. The spatial analysis results indicate that the majority of the study area is categorized as marginally suitable for settlement (18,619.35 ha or 55.73%), while highly suitable areas account for 1,847.10 ha (36.05%). These findings provide important insights for regional planning by the local government in managing coastal residential development.
The Small Fire Detection Using Rgb Method Of Himawari-9 And Firms Satellite Imagery (Fire Information Resource Management System) Using Viirs And Modis Satellite Imagery In Medan Marelan (Case Study: 16 November 2023) Giananti, Attiya Shakila; Haryanto, Yosafat Donni; Sopacua, Jerremy Mezac
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 2 (2025): Volume 22 No 2, December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i2.622

Abstract

Medan City is a city with a dense population. This causes residential areas in Medan Marelan tend to be densely packed. The negative impact is that are prone to fire disasters. To prevent the impact of these fires, monitoring is needed. Way of monitoring that can be done is using remote sensing. This research carried out remote-sensing by using the Himawari-9, MODIS, and VIIRS satellites. The method used are the Red Green Blue (RGB) method for the Himawari-9 satellite and the Fire Information Resource Management System (FIRMS) method for the MODIS and VIIRS satellites. Based on this research, the MODIS and VIIRS satellites are superior in monitoring small fires that occurred in Medan Marelan compared to the Himawari-9 satellite. The Himawari-9 satellite is more likely to detect clouds over fire locations than the fire itself. This was proven by radiosonde data which stated that atmospheric conditions at that time were moderately unstable. With additional information via rainfall data on November 16 2023 with a range of 20-50 mm.
The Spatial Analysis of the Potential and Development Opportunities for Ocean Current Power Plants (OCPP) in Lombok Strait Sartono, Naufal Tamam; Gilda Claudiya, Nazriela; Kusumawati, Lia; Ilhami, Andhika Putra; Zidan, Muhammad
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 2 (2025): Volume 22 No 2, December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i2.21934

Abstract

Entering an era where demand for electricity is increasing, renewable energy sources like the Ocean Current Power Plant (OCPP) are crucial for nations like Indonesia. The Lombok Strait, a key channel for the Arus Lintas Indonesia (ARLINDO) or Indonesian Throughflow, stands out as a strategic location for this technology due to its powerful currents. These currents have a minimum speed of 4.4 m/s and a maximum of 5.8 m/s, averaging around 5.34 m/s. This study sought to pinpoint suitable areas for OCPP development within the strait using a qualitative geographical approach, analyzing literature and satellite data. The research confirmed that current speeds ranging from 4.44 to 5.8 m/s could produce an average of 25.92 kW of power, equivalent to 181,647.36 kWh annually. Ideal locations for turbine placement ranging from 0 to 75 meters offshore, in water depths varying from 0 to -100 meters. Therefore, the study emphasizes the need for careful site selection using suitability maps and calls for further research into an effective power distribution system to successfully harness the strait's energy potential.  
The Mapping Regional Potential to Optimize Local Resources in Sumberadi Village, Mlati Subdistrict, Sleman Regency Widyastuti, Tita; Arsanti, Vidyana; Meliyani, Siti
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 2 (2025): Volume 22 No 2, December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i2.23535

Abstract

Sleman Regency, located in the Special Region of Yogyakarta, has diverse geographical and social characteristics, making it a region with high economic potential. The regency is well known for its strong agricultural sector as well as rapid economic growth in trade and small and medium enterprises (SMEs). Sumberadi Village, located in Mlati District, Sleman Regency, possesses significant regional potential. This study was conducted to identify and map the potential of Sumberadi Village in order to optimize local resources. The methods used included Focus Group Discussions (FGDs) and field observations. The objective of this research is to identify the main potential sectors and analyze their spatial distribution. A qualitative descriptive analysis was employed. The results show that the main potentials of Sumberadi Village include the agriculture, fisheries, cattle farming sectors, and SMEs that produce emping and slondok. In contrast, trade centers and cultural arts show relatively lower potential. This study also produced the 2024 Sumberadi Village Potential Map, which illustrates the spatial distribution of these potentials and highlights the diverse concentrations of economic and social activities across the village. The distribution patterns are influenced by land availability, accessibility, and existing infrastructure. The findings of this research are expected to serve as a reference for more effective regional planning and development.
A Assessment of Potential Damage and Loss of Subak Land Use Due to Flood Hazard in South Denpasar District, Denpasar City Sianturi, Harrixon Sangputra; Sumarniasih, Made Sri; Wiguna, Putu Perdana Kusuma; Narka, I Wayan; Bhayunagiri, Ida Bagus Putu; Mega, I Made
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 2 (2025): Volume 22 No 2, December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i2.31312

Abstract

South Denpasar District has an elevation of 0–12 meters above sea level and is categorized as a lowland area, making it prone to flood disasters. Flooding can cause damage and economic losses, particularly in the agricultural sector on subak lands. This study aims to calculate the potential damage and losses in subak land use in South Denpasar. The methods used include the Topographic Wetness Index (TWI) to analyze flood and damage potential, as well as field surveys for validation and loss estimation. The data used include DEM SRTM data, the Indonesian Topographic Map (RBI), the subak boundary map of South Denpasar District, and satellite imagery from Google Satellite. Data from the Department of Agriculture include subak area data. Data from the Agricultural Extension Center (BPP) and subak heads (pekaseh) include data on the cost components of subak production per hectare. Data from the Department of Public Works, Water Resources Division, include subak irrigation data and the cost components for constructing concrete irrigation channels per meter. The results show that subak land in South Denpasar has high damage potential covering 91,732 ha (20,48%), medium damage potential at 133,548 ha (29,81%), and low or no damage at 222,701 ha (49,71%). Areas with the largest subak damage potential are Subak Kerdung and Subak Kepaon. The potential damage to subak irrigation networks is classified as high 974,07 m (8,00%), medium 4.107,12 m (33,71%), and low or none 7.101,99 m (58,29%). The longest irrigation damage potentials are found in Subak Kerdung and Subak Intaran Barat. The total estimated subak loss in South Denpasar District is calculated by summing the losses from high and medium damage potential for each variable. The estimated loss for subak production is IDR 1,564,288,000, while the irrigation loss is IDR 1,496,626,727, resulting in a total potential loss of IDR 3,060,914,727. The highest losses are found in Subak Kerdung and Subak Kepaon. Policy recommendations include strengthening irrigation infrastructure, disaster mitigation training, and preserving the subak system through land conservation.
The Spatial Analysis of Population Structure Towards Demographic Bonus in Pesisir Barat Regency of Lampung arsita, septia
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol. 22 No. 2 (2025): Volume 22 No 2, December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v22i2.34986

Abstract

The demographic bonus represents a strategic development opportunity that can only be optimized when population structure is supported by adequate social, economic, and spatial readiness. In Pesisir Barat Regency, disparities in productive-age population distribution, high dependency ratios, unemployment rates, and rapid population growth remain key challenges in preparing for the demographic bonus. This study aims to spatially analyze the population structure based on key demographic indicators including population growth rate, dependency ratio, proportion of the productive-age population, and open unemployment rate. A quantitative approach was applied using spatial analysis techniques within a Geographic Information System (GIS) framework. All indicators were classified using range-based value categorization, visualized through thematic mapping, and integrated into a composite readiness index using a simple linear weighting method. The findings reveal that the population growth rate remains relatively high at 2.19%, driven by a persistently elevated birth rate. The dependency ratio reaches 49.87%, while the open unemployment rate is recorded at 4.12%, with spatial variation across districts. Despite these challenges, the productive-age population accounts for 69.5% of the total population, indicating substantial potential for harnessing the demographic bonus. These results emphasize that spatially informed population planning is essential for maximizing demographic potential while minimizing socio-economic disparities. Overall, this study highlights the significance of spatial demographic mapping as a scientific basis for formulating targeted development policies to ensure the demographic bonus translates into sustained regional progress.  

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