Publisher: Universitas Gadjah Mada   (Total: 50 journals)   [Sort by number of followers]

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Agrinova (Agrotechnology Innovation)     Open Access   (Followers: 1)
Agritech     Open Access   (Followers: 1)
ASEAN J. of Chemical Engineering     Open Access   (Followers: 1)
Asia Pacific Family Medicine J.     Open Access   (Followers: 4, SJR: 0.538, CiteScore: 1)
Bakti Budaya     Open Access   (Followers: 1)
Berkala Ilmu Perpustakaan dan Informasi     Open Access   (Followers: 1)
Buletin Peternakan : Bulletin of Animal Science     Open Access   (Followers: 1)
Buletin Psikologi     Open Access  
Gadjah Mada Intl. J. of Business     Open Access   (Followers: 1, SJR: 0.127, CiteScore: 0)
Gadjah Mada J. of Professional Psychology     Open Access  
IJEIS (Indonesian J. of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
IKAT : The Indonesian J. of Southeast Asian Studies     Open Access  
Indonesian Food and Nutrition Progress     Open Access  
Indonesian J. of Biotechnology     Open Access   (Followers: 1)
Indonesian J. of Chemistry     Open Access   (Followers: 2, SJR: 0.209, CiteScore: 1)
Indonesian J. of Community Engagement     Open Access  
Indonesian J. of Computing and Cybernetics Systems     Open Access   (Followers: 1)
Indonesian J. of Geography     Open Access   (Followers: 2, SJR: 0.217, CiteScore: 1)
Indonesian J. of Pharmacy     Open Access   (Followers: 3)
J. of Applied Geology     Open Access   (Followers: 2)
J. of Geospatial Information Science and Engineering : JGISE     Open Access   (Followers: 1)
J. of Indonesian Economy and Business     Open Access   (Followers: 2)
J. of Leadership in Organizations     Open Access   (Followers: 3)
J. of Mechanical Design and Testing     Open Access   (Followers: 2)
J. of the Civil Engineering Forum     Open Access   (Followers: 2)
JKAP (Jurnal Kebijakan dan Administrasi Publik)     Open Access  
Jurnal Filsafat     Open Access  
Jurnal Gizi Klinik Indonesia     Open Access   (Followers: 1)
Jurnal Humaniora     Open Access   (Followers: 1)
Jurnal Ilmu Kehutanan     Open Access   (Followers: 1)
Jurnal Kajian Seni     Open Access  
Jurnal Kawistara     Open Access  
Jurnal Ketahanan Nasional     Open Access   (Followers: 1)
Jurnal Manusia dan Lingkungan     Open Access   (Followers: 1)
Jurnal Mimbar Hukum Fakultas Hukum Universitas Gadjah Mada     Open Access  
Jurnal Nasional Teknik Elektro dan Teknologi Informasi     Open Access  
Jurnal Pariwisata Terapan     Open Access  
Jurnal Pengabdian Kepada Masyarakat (Indonesian J. of Community Engagement)     Open Access  
Jurnal Perikanan Universitas Gadjah Mada     Open Access   (Followers: 2)
Jurnal Psikologi     Open Access  
Jurnal Sain Veteriner     Open Access  
Jurnal Teknosains     Open Access  
Majalah Geografi Indonesia     Open Access  
Majalah Kedokteran Gigi Indonesia     Open Access   (Followers: 1)
PCD J.     Open Access  
Poetika : Jurnal Ilmu Sastra     Open Access  
Populasi     Open Access  
Review of Primary Care Practice and Education (Kajian Praktik dan Pendidikan Layanan Primer)     Open Access   (Followers: 1)
Sasdaya : Gadjah Mada J. of Humanities     Open Access   (Followers: 2)
Traditional Medicine J.     Open Access   (Followers: 2)
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Indonesian Journal of Geography
Journal Prestige (SJR): 0.217
Citation Impact (citeScore): 1
Number of Followers: 2  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0024-9521
Published by Universitas Gadjah Mada Homepage  [50 journals]
  • Drivers of Regional Destination Competitiveness: A DEMATEL – Fuzzy
           TOPSIS Approach

    • Authors: Rio Benedicto Bire, Agustino Lukas Fischer Conterius, Asbi Nasar
      Abstract: This paper aims to explore a conceptual criteria framework for measuring tourism destination competitiveness at the regional level to fill the existing gap in literature. This study was conducted in the East Nusa Tenggara (NTT) Province of Indonesia, by developing a tailored set of criteria for measuring destination competitiveness specific for the regional backdrop through rigorous literature review and in-depth interviews with tourism experts. Moreover, a hybrid MCDM approach combining DEMATEL and Fuzzy TOPSIS techniques was employed to analyze interrelationships and importance rankings of the developed measurement criteria. This research developed a six-factor and twenty-three indicator framework deemed relevant for assessing destination competitiveness at the regional level. The six factors comprise of destination attraction, general infrastructure, superstructure, destination management, price competitiveness, and regional government policy. The DEMATEL analysis revealed regional government policy to be the most influential factor, whilst destination attraction was rendered the most important one. Results from the Fuzzy TOPSIS present the most important indicators from the framework as a natural attraction, accessibility and port infrastructure, accommodation, the image of the destination, and priority towards the tourism sector.  Findings from this research provide valuable insights in terms of proposing tourism policymakers with a blueprint of regional destination competitiveness criteria that offers critical inputs for developing medium and long-term tourism strategies.
      PubDate: 2021-04-27
      DOI: 10.22146/ijg.58483
      Issue No: Vol. 53, No. 1 (2021)
  • Social Capital and Social Capacity in Rural Ecotourism Development

    • Authors: Iwan Nugroho, Rita Hanafie, Purnawan Dwikora Negara, Sudiyono Sudiyono, Hefifa Rhesa Yuniar
      Abstract: The participation of rural people in ecotourism activity remains the question, whether they genuinely carry the vision of conservation or are forced to engage in meeting economic needs only. This question is fundamental for building better participation and management of ecotourism in rural areas. The research aims to discuss social capital and social capacities to empower ecotourism in rural areas. The study was carried out in the villages of Ngadas and Gombengsari using a survey approach, and employing descriptive and path analysis methods. The results show that social capital for managing ecotourism services demonstrated the functioning of institutions, networking capabilities, monitoring, evaluation, and innovation.  Social capacity is related to the regulation of institutional, social, economic, and environmental resources.  Social capacity was found more substantial in Gombengsari than Ngadas village.  The research is expected to strengthen the study of social capital as a stock/sink and its relationship with sustainability.
      PubDate: 2021-04-27
      DOI: 10.22146/ijg.55662
      Issue No: Vol. 53, No. 1 (2021)
  • Incremental planning of the location of public health facilities in a
           rural region

    • Authors: Olayinka Waziri Otun
      Abstract: Some people in rural areas are often excluded from using health facilities in developing nations due to political interference in facility location decision-making. Limited attention has been paid in the literature to promoting inclusiveness in public facilities usage in developing nations. Therefore, this study was designed to examine the access to Primary Health Centres (PHCs) in the Yewa region,  Nigeria. Data on the 509 settlements and 91 PHCs in the Yewa region were obtained from government directories. The p-median Location-Allocation model was used for data analyses. The study showed that the number of PHCs increased and access to them improved in the Yewa region between 1991 and 2019. It was also shown that inclusiveness in facilities could be promoted by optimally adding new PHCs. The study assessed the effectiveness of past locational decisions, similar to other studies in Bangladesh and India, and revealed that the military administration performed better than the civilian administration in facility location decision-making between 1991 and 2019. The study showed how new facilities could be optimally located to improve access and inclusiveness in public usage.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.56107
      Issue No: Vol. 53, No. 1 (2021)
  • Water Balance Supporting the Irrigation Water Demand in Java Island,

    • Authors: Yudha Mediawan, Lily Montarcih, Widandi Soetopoi, Tri Budi Prayogo
      Abstract: Java is the most populous island with the largest percentage of rice fields in Indonesia. However, rice fields in Java Island often experience water shortages, so an analysis of the potential water availability for irrigation in Java is required. This research aims to analyze water's potential to meet irrigation water needs in each catchment area in Java. In this research, the potential for irrigation water in Java is calculated based on the balance of water balance between water availability and DMI and Irrigation water needs. This research is divided into two parts: (1) analysis of water availability using the WFLOW hydrological simulation; and (2) water demand analysis based on population statistical data. Based on this research, it can be concluded that the water balance between water resources and irrigation water needs in Java is still in the surplus category, even though there are deficits in several catchment areas (WS): in the Kepulauan Seribu, Wiso Gelis, and Welang Rejoso WS. WS with the most water availability is generally located in wide (WS) areas, while several WS with abundant water needs is generally located in WS with the densest population. According to The Central Bureau of Statistics (BPS), the agricultural area in Java has decreased by an average of 20 thousand hectares per year, so that the demand for irrigation water on the island of Java will also decrease. Consequently, the excess water potential in Java Island needs to be allocated to meet the needs of DMI, which are increasing every year. In addition, the results also show that the development of irrigation areas in the future should be focused on large (WS) areas that have the potential for significant amounts of irrigation water. 
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.59102
      Issue No: Vol. 53, No. 1 (2021)
  • Hydrogeological Risk Assessment for Groundwater Conservation in the
           Northeastern Slope Area of Mount Arjuno, Pasuruan Regency, East Java,

    • Authors: Sari Bahagiarti Kusumayudha, Puji Pratiknyo, Herry Riswandi, Eni Muryani
      Abstract: The northeastern slope of Mount Arjuno, Pasuruan district, East Java province, Indonesia represents a vast and good groundwater resource quality, generally be exploited by some companies for drinking water industries. Water unbalance and quality degradation is presumed to arise because groundwater extraction volume is getting bigger but less control by the regency authority. This study is to figure out the geologic condition and hydrogeological system, conduct groundwater exploitation risk assessment, and develop a conservation program. The study results show that the study area's geomorphological units can be divided into the volcanic summit, volcanic slope, fluvial plain, and anticlinal hills. The lithology comprises sandstone, breccia, and andesite lava of Mount Arjuno and Mount Welirang. The geological structures are anticline, normal fault, and lateral slip fault. Hydrologically, there are three watersheds, including Lumbangrejo, Ketanireng, and Prigen watersheds. The aquifers comprise unconfined to semi-confined aquifers with fissures and intergranular porosity. Based on risk assessment valuation, Pecalukan village of the Ketanireng watershed and Lumbangrejo village of the Lumbangrejo watershed are categorized as very high groundwater vulnerability zones, Karangrejo and Sukoreno villages of the Lumbangrejo watershed, Kedungringin, Kepulungan, and Gunungsari villages of the Ketanireng watershed are categorized as medium vulnerability zone. While, Ngorong village of the Lumbangrejo watershed, Gempeng, Oro-Ombo, Kalisat, and Dukuhsari villages of the Prigen watershed belong to the low vulnerability zone. The proposed conservation programs involve profitable water use safety campaigns, domestic waste, and industrial wastewater management, agricultural activities controlling, sandstone mining regulation, and reforestation. 
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.59476
      Issue No: Vol. 53, No. 1 (2021)
  • Application of Urban Geology in Construction Projects (Case Study: Urban
           Geology of Sarpol-e Zahab, Kermanshah Province, Iran)

    • Authors: Sajad Afzali, Faezeh Taheri Sarmad, Mojtaba Heidari, Seyed Hossein Jalali
      Abstract: Urban geology is a preliminary study for the construction and development of cities, which has been more prominent in recent decades in some countries despite its long application history. It assesses the impact of geological and natural phenomena on urban space and available structures. The earthquake on Nov. 21, 2017, inflicted a lot of damage to the city of Sarpol-e Zahab, west of Iran, including financial losses and casualties. Reconstruction of this city and planning for its sustainable development entail conducting urban geological studies. In the present study, the effect of natural phenomena on Sarpol-e Zahab County was studied by investigating its geology and geomorphology. The results showed that, in addition to the earthquake that habitually affected the city of Sarpol-e Zahab, the hazards of other phenomena are also significant. Recorded horizontal acceleration in the recent earthquake confirmed the high seismicity of Sarpol-e Zahab has.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.43279
      Issue No: Vol. 53, No. 1 (2021)
  • Characteristic of Soil Moisture in Indonesia Using ESA CCI Satellites

    • Authors: Fatkhuroyan Fatkhuroyan, Trinah Wati, Roni Kurniawan
      Abstract: Soil moisture (SM) is one of the energy and water exchange main drivers between the atmosphere and land surface. The study aims to analyze the soil moisture characteristics in Indonesia on monthly and seasonal time scales. The analysis uses mapping of monthly and seasonal ESA CCI SM satellite products of mean daily from 1979 to 2016. The results showed the spatial and temporal variability of SM in Indonesia. Sumatera has SM values > 0.3 m3/m3 almost throughout the year. Besides, Java has SM values > 0.3 m3/m3 from January to April and October to December while 0.2-0.3 m3/m3 from May to September. In Borneo, the SM value > 0.3 m3/m3 from February to June and November to December, while from July to September are 0.2-0.3 m3/m3. Sulawesi has SM values > 0.3 m3/m3 from January to July, on December, and 0.2-0.3 m3/m3 from august to November. Bali to Nusa Tenggara have SM values between 0.2-0.3 m3/m3 throughout the year, except <0.2 m3/m3 in Sumba, Timor Island, and Central Lombok from June to November. Maluku has SM values between 0.2-0.3 m3/m3 throughout the year, while Papua has SM values >0.3 m3/m3 throughout the year, except in Jayawijaya Mountain and South Papua. The ESA CCI SM product is essential for monitoring SM in Indonesia.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.43905
      Issue No: Vol. 53, No. 1 (2021)
  • The impact of urban light rail transit on double-story terraced property
           values in the Greater Kuala Lumpur, Malaysia

    • Authors: Mohd Faris Dziauddin
      Abstract: Introducing a rail transit system into an urban region is expected to increase land values, and subsequently, residential property values. Despite this general belief, there has been limited research on the impact of proximity to urban light rail transit stations in developing countries setting. This study, therefore, investigates the impact of proximity to urban light rail transit on double-story terraced property values in the Greater Kuala Lumpur, Malaysia, using hedonic pricing model. The findings suggest urban light rail transit has a positive and significant impact on surrounding double-story terraced residential property values – estimated at a premium of 12.3% and 9.8% for properties located up to 1000 m and 1001 – 2000 m to the nearest light rail transit station respectively. The findings of the study are useful for investors and developers, namely to build more houses near urban rail transit infrastructure since they lead to significant appreciation in value.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.46302
      Issue No: Vol. 53, No. 1 (2021)
  • 3D Modeling of Subsurface Lawanopo Fault In Southeast Sulawesi, Indonesia
           Using Grablox and its Consequence to Geohazard

    • Authors: Triani Triani, Rofiqul Umam, Sismanto Sismanto
      Abstract: Lawanopo Fault is a horizontal shear fault (sinistral strike-slip) found in Southeast Sulawesi province and is thought to be active during Plio-Pleistocene or mid-late Miocene to the present. This study has been carried out which aims to find out the geometric shapes below the surface of the Lawanopo fault using complete Bouguer anomaly (ABL) data.  The ABL data is projected onto a flat plane using the Dampney method at an altitude of 8 km, and the separation of local and regional anomalies is carried out using the upward continuation method at an altitude of 60 km. Three-dimensional (3D) modeling under the surface of the Lawanopo fault is done using the computer program Grablox. Data processing techniques using Singular Value Decomposition (SVD) and Occam inversion. The results showed that a high gravity anomaly of 190-225 mGal was caused by an igneous rock below the surface with a density of 2.7-3.33 gr/cm3 and a thickness of about 13 km, a moderate anomaly of 175-187 mGal caused by Paleozoic igneous rocks aged Carbon with a density of 2.6-2.9 gr/cm3 and a thickness of about 25 km. Low anomaly 115-160 mGal is caused by rocks with a density of 2.0-2.5 gr/cm3 and a thickness of about 22-23 km. The Lawanopo fault constituent rocks consist of alkaline rocks in the basement covered by sediment and metamorphic with a depth of Lawanopo fault more than 15 km and begin to be seen at a depth of 4.3 km of the surface. it is known that the area around the Lawanopo fault is an area prone to earthquakes. But, based on the soil and rock structure around the Lawanopo fault, the compactness and attenuation levels in reducing earthquake waves are quite good, so that land use around the Lawanopo fault tends to be safe.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.50878
      Issue No: Vol. 53, No. 1 (2021)
  • The Carrying Capacity Assessment of Two MRTStations Transit-Oriented
           Development Areas in Jakarta

    • Authors: Hayati Sari Hasibuan, Ahyahudin Sodri, Riza Harmain
      Abstract: Many studies have investigated the effects of transit-oriented development (TOD) on density, design, diversity development, and transit ridership. However, fewer studies address the issue of carrying capacity of TOD. This paper aims to assess TOD areas' carrying capacity using four criteria (land capability, water availability, socio-economic, and green infrastructure) and  14 indicators on Jakarta's two TOD areas. These results show that even though both of the TOD area, Dukuh Atas and Lebak Bulus, are in the good of carrying capacity in land capability, there are some issues to address the possibility of water availability. For TOD's success, the socio-economic criteria should be promoted in the fringe-urban TOD area like Lebak Bulus. We identified the green infrastructure, such as pedestrian, cycling route, and green open space, still in low development and should be pursued to extend the TOD carrying capacity for the future.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.51968
      Issue No: Vol. 53, No. 1 (2021)
  • Lineament Extraction using Gravity Data in the Citarum Watershed

    • Authors: Gumilar Utamas Nugraha, Karit Lumban Goal, Lina Handayani, Rachmat Fajar Lubis
      Abstract: Lineament is one of the most important features showing subsurface elements or structural weakness such as faults. This study aims to identify subsurface lineament patterns using automatic lineament in Citarum watershed with gravity data. Satellite gravity data were used to generate a sub-surface lineament. Satellite gravity data corrected using Bouguer and terrain correction to obtain a complete Bouguer anomaly value. Butterworth filters were used to separate regional and residual anomaly from the complete Bouguer anomaly value. Residual anomaly gravity data used to analyze sub-surface lineament. Lineament generated using Line module in PCI Geomatica to obtain sub-surface lineament from gravity residual value. The orientations of lineaments and fault lines were created by using rose diagrams. The main trends observed in the lineament map could be recognized in these diagrams, showing a strongly major trend in NW-SE, and the subdominant directions were in N-S. Area with a high density of lineament located at the Southern part of the study area. High-density lineament might be correlated with fractured volcanic rock upstream of the Citarum watershed, meanwhile, low-density lineament is associated with low-density sediment. The high-density fracture might be associated with intensive tectonics and volcanism.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.52402
      Issue No: Vol. 53, No. 1 (2021)
  • Tourist Attraction and Tourist Motivation in The Patuha Mountain Area,
           West Java

    • Authors: Dema Amalia Putri, Maria Hedwig Dewi Susilowati, Jarot Mulyo Semedi
      Abstract: The Bandung Regency Spatial Plan for 2007-2027 regulates The Patuha Mountain Area as one of the regions that have a special role in the tourism sector. This research was conducted to find out the attractiveness value and motivation of tourists on tourist attractions as well as the relationship between them in The Patuha Mountain Area. Assessment of tourist attractiveness value was based on the completeness of attraction, tourist facilities, and accessibility. Meanwhile, tourist motivation was based on tourist preferences, tourist needs, and tourist travel status. The variables were analyzed using spatial analysis and chi-square test statistics. The results indicated that the high attractiveness value has a nodal destination system, while medium and low attractiveness value has a linear destination system. Tourist motivation was being dominated by flashpacker types. Tourists who visited The Patuha Mountain Area are not being influenced by the attractiveness value of tourist attractions. Although tourist attraction has complete tourist facilities, tourists only focus on the attraction compared to the tourist facilities and accessibility.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.52415
      Issue No: Vol. 53, No. 1 (2021)
  • The Millennials Metacognitive Assessment toward Flood-Disaster in Semarang

    • Authors: Erni Suharini, Edi Kurniawan
      Abstract: Disaster management action should be built up through developing metacognitive and action skills. The metacognitive strategy includes aspects of knowledge about when and how to use it by type, specific technique, and response that are assumed related to deal with disasters. Therefore, this study was aimed to assess the metacognitive abilities of millennials who are affected by disasters and its relation to disaster management. This study used an observatory exploration and inventory (EOI) method involving 248 respondents in flood-prone areas in the city of Semarang. Data were obtained using a questionnaire-based Guttman model electronic survey as many as 52 statements to inventory metacognition abilities and 48 statements related to actions in flood disaster management. Data were analyzed using Pearson’s linear and regression analysis. The non-parametric analysis: Kruskal-Wallis test was run to distinguish metacognitive scores in dealing with food-related problems among millennials groups. For metacognitive awareness, the cognition knowledge was higher than controlling knowledge (p < 0.05). The highest score of metacognitive variables was debugging strategy, which represents a corrective attitude. As described in the value of conditional knowledge, the ability to think fast shows that the millennials are quickly responding and understanding how to act. Most of the respondent actively involved in mitigation and rehabilitation as a volunteer in youth-events such us mangrove planting and cleaning plastic-trash in coastal areas. But, lack involvement of millennial in arranging flood-disaster management make less youth’s responsibility during the disaster. It should be overcome to create a comprehensive approach to community-based disaster resilience. 
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.57843
      Issue No: Vol. 53, No. 1 (2021)
  • Development of Sustainable Logistics for Indonesian Remote and Rural
           Islands Connectivity: A Case Study of the Anambas Islands Regency

    • Authors: Kuncoro Harto Widodo, Anjar Kistia Purwaditya, Joewono Soemardjito
      Abstract: Usually, countries have a fundamental problem in fulfilling remote and rural island inhabitants’ logistical needs. This study was aimed to analyze the performance of logistics systems in Indonesian remote and rural islands by focusing on the Anambas Islands Regency case. We proposed a House of Sustainable Logistics method by considering and combining the framework used in the House of Quality based on the variable of sustainable logistics systems (profit, people, and the planet) with the variables of seven key general logistical drivers (infrastructure, information and communication technology, human resources, logistics service providers, regional laws and regulations, regional institutions, and key commodities.). The study results indicated five key aspects of potential prime movers to be developed (ASLDPj value = 54); they are infrastructure, human resources, logistics service providers, local laws and regulations, and key commodities.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.57722
      Issue No: Vol. 53, No. 1 (2021)
  • The Integrated Spatial Assessment of The Flood Hazard Using AHP-GIS: The
           Case Study of Gorontalo Regency

    • Authors: Muhammad Ramdhan Olii, Aleks Olii, Ririn Pakaya
      Abstract: Mapping of potential flood hazards is an important element in ensuring proper planning of development and implementing flood disaster mitigation efforts for flooded areas. Therefore, this study was conducted to assess the regional-scale flood hazard areas in Gorontalo District using an AHP-GIS integration technique with the focus on factors such as annual rainfall, elevation, slope, soil type, distance to the water bodies, and land-use. The flood hazard was divided into five classes, ranging from very low to very high, and 13.61% of the total area in Gorontalo Regency is classified as either high or very high. Moreover, the distribution of the hazard was verified and 65 events were recorded to have a level of 90.7% and this indicates the model is reliable to assess flood hazard. The results showed GIS-AHP integration is a promising method to accurately predict flood-hazard areas, especially in those with limited data.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.59999
      Issue No: Vol. 53, No. 1 (2021)
  • Validation of Sea Surface Temperature from GCOM-C Satellite Using iQuam
           Datasets and MUR-SST in Indonesian Waters

    • Authors: Bambang Sukresno, Dinarika Jatisworo, Rizki Hanintyo
      Abstract: Sea surface temperature (SST) is an important variable in oceanography. One of the SST data can be obtained from the Global Observation Mission-Climate (GCOM-C) satellite. Therefore, this data needs to be validated before being applied in various fields. This study aimed to validate SST data from the GCOM-C satellite in the Indonesian Seas. Validation was performed using the data of Multi-sensor Ultra-high Resolution sea surface temperature (MUR-SST) and in situ sea surface temperature Quality Monitor (iQuam). The data used are the daily GCOM-C SST dataset from January to December 2018, as well as the daily dataset from MUR-SST and iQuam in the same period. The validation process was carried out using the three-way error analysis method. The results showed that the accuracy of the GCOM-C SST was 0.37oC.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.53790
      Issue No: Vol. 53, No. 1 (2021)
  • Greenhouse Gas Emission from Rice field in Indonesia: Challenge for future
           research and development

    • Authors: Miranti Ariani, Eko Haryono, Eko Hanudin
      Abstract: Rice is an essential crop in Indonesia. Any aspects of rice to increase productivity have been well studied and documented; however, there are still lacking well-documented studies on its environmental aspects, including climate change. Many researches might already be conducted, but only a few have been published in a peer-reviewed journal. There is still a lack of robust data on greenhouse gas (GHG) emissions from the rice field in Indonesia, factors affecting and the technology on how to reduce it. From the reviewed publications, it was found out that research only conducted under a controlled environmental setting. More research on understanding the controlling factors (e.g., water management, rice cultivar, soil types, and fertilizer) of GHG emission from rice field is still needed. The result will introduce a sustainable farming practice,  with low in GHG emissions, high in productivity, simple to apply and generate more income to farmers. This review has identified the gaps for future research and development in Indonesia. The research should meet the need, either national or global strategies. Development of a new farming practice will succeed in the presence of government policies. Therefore an intensive interdisciplinary approach between researcher and other stakeholders should be conducted.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.55681
      Issue No: Vol. 53, No. 1 (2021)
  • Sediment Movements in Estuary of Siak River, Riau Basin, Indonesia

    • Authors: Mubarak Mubarak, Ahmad Nurhuda
      Abstract: Siak river has a long history as a transportation lane in the east of Sumatera. From traditional to timber transportations are dependent on this river. Now the river is a severe suffering pollutant spill from many sources. Anthropological activities were higher contributions in the degradation of river environments. Many works were reported about pollution in Siak river. But how the distribution of model sediment transport in the mouth of the river is less to be explained. We consider hydrodynamics model of the mouth of Siak river for modeling the sediment distribution. This simulation gives a fundamental and clear understanding of how total solid sediment (TSS) distribution when flood and ebb tide happens. At ebb tide, TSS dispersion is higher than at flood tide. There is found that the sediment is concentrated in the plume of Siak river in Bengkalis strait. The composition of the sediment is dominated by organic matters.
      PubDate: 2021-04-14
      DOI: 10.22146/ijg.57100
      Issue No: Vol. 53, No. 1 (2021)
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