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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
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ANALYZING RUNOFF DYNAMICS THROUGH PARAMETERIZING A HYDROLOGICAL MODEL IN A WATERSHED: A CASE STUDY IN UPPER SERAYU BASIN, CENTRAL JAVA PROVINCE, INDONESIA Adhi Nurul Hadi; Sudibyakto Sudibyakto; Dhruba Shrestha
Indonesian Journal of Geography Vol 43, No 1 (2011): 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.2293

Abstract

This research constructed a hydrological model by means of available data,hydrological equations, and GIS program to find out the runoff dynamic on thestudy area. The runoff dynamic was analyzed by describing runoff on different landcover types, figuring the correlation between hydrological component and runoff,calculating the sensitivities of the hydrological components to runoff, andidentifying the response of runoff to possible land cover change. The modelresulted that the highest runoff occurred on built up area and the lowest occurredon cultivation area. Infiltration was also the hydrological component that mostlyinfluenced runoff. Replacing forest, shrub, and plantation by cultivation greatlyreduced runoff up to 49 %. Enlarging forest area increased runoff about 12 %.Based on those findings, the hydrological component having the strongestcorrelation with runoff gave the most influence to runoff change, and enlargingforest area does not always decrease runoff.
A LOCAL SPATIAL DATA INFRASTRUCTURE TO SUPPORT THE MERAPI VOLCANIC RISK MANAGEMENT: A CASE STUDY AT SLEMAN REGENCY, INDONESIA Tandang Yuliadi Dwi Putra; Aditya Trias; Walter de Vries
Indonesian Journal of Geography Vol 43, No 1 (2011): 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.2294

Abstract

This research aims to implement an application of a Local Spatial DataInfrastructure (SDI) for evacuation planning of Merapi Volcano disaster. Theprocesses, problems and information flows in evacuation planning were examined.Geo-collaboration Portal was customized in order to provide spatial resources fordecision makers. It is equipped with usable maps presentation and interaction toolsto support collaborative decisions. User group assessment was carried out toevaluate usability of the application. The evaluation results showed thatcollaborative portals on top of a local SDI can facilitate effective decision makingprocess and improve coordination among involved stakeholders in thecontext of disaster preparedness and mitigation. Several aspects need to beconsidered in order to achieve a functional local SDI e.g. availability and qualityof the spatial data, establishment of local regulations and standards, developmentof metadata, and strengthening capable human resources.
DIFFERENCES IN DISASTER RESPONSE DUE TO VARYING DATA AVAILABILITY A SERIOUS GAME FOR FLOODING DISASTER RESEARCH IN SURAKARTA, INDONESIA Muhammad Syukril; M. Pramono Hadi; Menno W. Straatsma
Indonesian Journal of Geography Vol 43, No 1 (2011): 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.2295

Abstract

This research aims to propose a method to study the effect of data availability indisaster-response study. This research focused on how to quantify the relationbetween data availability and actions taken by decision maker. The more specifictopic is represented as disaster response due to varying data availability usingSerious Game method in the Public Works Unit Surakarta. The serious gameprovide scenario to gather data about several issues. Digital elevation model,flood alert stage decision making, and damage prediction information wereneeded. This research also could promote as a complement the other method forcollecting data and decision-making training program for flood manager. Theresult of analysis has shown that there are differences of responses based on thedata availability. Better responses can be achieved by the improvement of dataavailability. It also proves that the number of correct decision was raised by theimprovement of data availability.
A GIS MODELLING APPROACH FOR FLOOD HAZARD ASSESSMENT IN PART OF SURAKARTA CITY, INDONESIA Tipuk Purwandari; M. Pramono Hadi; Nanette C. Kingma
Indonesian Journal of Geography Vol 43, No 1 (2011): 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.2296

Abstract

This research is aimed to assess the flood hazard in part of Surakarta usinghydrodynamic modelling. Flo2D software is used to simulate the flood for 10, 25and 100 year return period. The modeling results include two flood parameters, i.ewater depth and flow velocity. A comparison was made in flood hazard mappingbetween single parameter and multi parameters. The multi parameters hazardmaps improve the reliability of the hazard class delineation. The impact assessmentis done in two point of view, human safety and property damage. The furtherimpact assessment is done by calculating the number of buildings affected by flood.
A PRELIMINARY INVESTIGATION ON CHANGING TEMPERATURE MAXIMA-MINIMA DEVIATION (TMIN-MAX DEVIATION) IN INDONESIA Djoko Harmantyo
Indonesian Journal of Geography Vol 43, No 1 (2011): 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.2297

Abstract

While the immediate impacts of climate change have been widely discussed,there are only few researches on climate change revealing its effect to temperatureamplitude. Changing temperature amplitude will hamper metabolism process,which in turn will decrease productivity and, even, cause the extinction of certainorganism species. This research will expose the changing temperature amplitude (Tminmax)including its trend pattern in Indonesia. The adoption of trend analysis methodand comparison analysis to the values of temperature amplitude in 60 AWS stationfrom 1980-2007 indicates upward trend of annual mean temperature with shortertemperature amplitude. This shorter temperature amplitude is characterized byannual mean temperature maxima increase less than the rise of annual meantemperature minima. Data analysis finds indication, i.e. the more eastward direction, thegreater difference of average Tmin-max deviation. Yet, this research fails to show whatfactors contributing to the changing temperature amplitude. More in-depth researchof these factors at ecological scale will be necessary as crucial part in determiningadaptation programs to this on-going climate change phenomenon.
THE ROLE OF VEGETATION COVER AND CATCHMENT CHARACTERISTICS ON BASEFLOW IN BALI ISLAND Saparis Soedarjanto; J. Sartohadi; M.P. Hadi; P. Danoedoro
Indonesian Journal of Geography Vol 43, No 2 (2011): 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.2379

Abstract

Studies of the role of combined vegetation cover and catchment characteristics on base flowcondition are required to address the controversy of correlation between vegetation andhydrological properties. Objectives of the research were: 1) to assess the hydrological role ofvegetation on baseflow condition; and 2) to study the influence of vegetation cover in relationto catchment characteristics on the baseflow. Field survey, digital filter method, remotesensing technique, and statistical analysis were used to derive and assess the correlationamong variables. Results of the research were: 1) a negative significant correlation betweenvegetation cover and baseflow recession coefficient, despite the fact that it is not a singlefactor and related to various catchment characteristics; 2) vegetation cover is not a singlefactor in determining the baseflow characteristics, since it also involves drainage density andinfiltration rate.
DISASTER AND RESILIENCE FOR THE 2007 FLOOD EVENT IN PART OF SUKOHARJO REGENCY Sinta Damayanti; Muh Aris Marfai
Indonesian Journal of Geography Vol 43, No 2 (2011): 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.2380

Abstract

Community resilience has become an important factor in a disaster mitigation plan.Resilience is related to the ability to recover from a disaster and is for every persondifferent. This research intends to assess community resilience for flood disaster. Factorsfor quantifying community resilience were asked to respondents by giving questionnaireand interviewing them, and FGD was also done in order to generate flood map based onthe community knowledge. The FGD result shows that the flood depth in the study areavaries from 0 until 300 cm, and the duration of inundation varies from 1-7 days. Floodalso caused losses, and the distribution of the losses was Rp. 0 - 100,000,000,- although, ingeneral, the losses was merely below Rp. 2,000,000,-. Based on the weighting result, theresilience value of the respondent is distributed from 0.113 until 0.700. The averageresilience value of Laban village is 0.403, and 0.368 for Kadokan village. The resiliencevalue was mostly influenced by human capital. In order to increase the communityresilience, government has established flood control devices and rehabilitated the dike alongthe river.
IMPACTS OF URBAN DEVELOPMENT PRESSURE ON COASTAL LOCAL COMMUNITIES IN TANZANIA Susan Rugano Gwalema
Indonesian Journal of Geography Vol 43, No 2 (2011): 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.2381

Abstract

The study examined the socio-economic and cultural impacts of urban development pressureon coastal local communities in Tanzania, in line with the implementation of Human Rightsand the National Land and Human Settlement Development Policy, and suggests measures tomanage or prevent the adverse impacts and enhance beneficial impacts. Social ImpactAssessment principles were employed to study the impacts of urban development pressure onKaole, Ununio and Kilwa-Masoko. Qualitative data from 12 informants, 6 Focus Groups,and quantitative data from 150 heads of household and their spouses were collected using asemi-structured questionnaire. Data was analysed using the SPSS computer software. It wasfound out that impacts included low incomes, insecurity over land, food insecurity, pooraccess to social services, and vulnerability to poverty. Apart from Kilwa-Masoko, there wereno programmes to avoid negative impacts of urban development. It is recommended that landallocation processes should properly implement Human Rights and the National Land andHuman Settlement Development Policy.
ENVIRONMENTAL CARRYING CAPACITY BASED ON SPATIAL PLANNING Luthfi Muta'ali
Indonesian Journal of Geography Vol 43, No 2 (2011): 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.2382

Abstract

The aims of this research were to examine environmental carrying capacity analyzed basedon aspects of spatial planning and eco-region. The result showed that Kulonprogo Regencyhas low value of environmental carrying capacity and can only support as much as 79.81%of its total population. Analysis of variance showed significant difference of environmentalcarrying capacity of protected and cultivated area. The main factor among 12 variablesdetermining the degree of environmental carrying capacity is man-land ratio (contributed39.72%). Priority should be given to 28 villages or 31.81% of the area with lowenvironmental carrying capacity. Eco-region and spatial plan approaches in environmentalmanagement practice are also strongly recommended.
EFFECTIVENESS OF TRANSBOUNDARY COLLABORATIVE CONSERVATION IN VIRUNGA NATIONAL PARKS Nabalegwa M Wambede; Buyinza Mukadasi; Tiyo Christopher
Indonesian Journal of Geography Vol 43, No 2 (2011): 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.2383

Abstract

The general aim was to assess the effectiveness of transboundary collaboration in thecontiguously adjoining protected areas of Virunga massive. The specific objectives were, a)to identify the role of different stakeholders in the management of transboundarycollaboration, b) to assess the level of collaboration between the three authorities andgovernments, c) to assess the participation of local communities in planning andmanagement of the natural resources, and d) to establish the effectiveness of the approach inmanaging natural resources. The study employed both the primary and the secondary datasources. The questionnaires were used to collect data from officers and the discussion withrelevant officials was conducted. A total 90 local community members were interviewed fromthe three countries. The secondary data were collected from management of MgahingaNational Park, Parc Nationaux des Volcano of Rwanda, Parc National des Virunga IGCPstaff and crossection of protected areas stakeholders and government institutions of the threecountries. The Results indicated that regarding the collaborative management between thethree authorities, it was found out that information exchange and joint patrol were the majoractivities. By 2003, in Uganda poaching had reduced to 1 case and the wire snare to 54which accounted for 2.3% and 8.8% respectively from the 23.3% and 19.6% in 1997.However the figures in Rwanda reduce slightly due to the security situation. It was alsodiscovered that the local communities of DR. Congo and Rwanda were highly involved inplanning of conservation activities that the case with Uganda.

Page 39 of 64 | Total Record : 633

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