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INDONESIA
Indonesian Journal of Geography
ISSN : 00249521     EISSN : 23549114     DOI : -
Core Subject : Science,
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.
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Articles 15 Documents
Search results for , issue "Vol 51, No 3 (2019): Indonesian Journal of Geography" : 15 Documents clear
Improving Numerical Weather Prediction of Rainfall Events Using Radar Data Assimilation Miranti Indri Hastuti; Jaka Anugrah Ivanda Paski; Fatkhuroyan Fatkhuroyan
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (208.51 KB) | DOI: 10.22146/ijg.44924

Abstract

Data assimilation is one of method to improve initial atmospheric conditions data in numerical weather prediction. The assimilation of weather radar data that has quite extensive and tight data is considered to be able to improve the quality of weather prediction and analysis. This study aims to investigate the effect of assimilation of Doppler weather radar data in Weather Research Forecasting (WRF) numerical model for the prediction of heavy rain events in the Jabodetabek area with dates representing four seasons respectively on 20 February 2017, 3 April 2017, 13 June 2017, and 9 November 2017. For this purpose, the reflectivity (Z) and radial velocity (V) data from Plan Position Indicator (PPI) product and reflectivity (Z) data from Constant Altitude PPI (CAPPI) product were assimilated using WRFDA (WRF Data Assimilation) numerical model with 3DVar (The Three Dimensional Variational) system. The output of radar data assimilation and without assimilation of the numerical model of WRF is verified by spatial with GSMaP data and by point with precipitation observation data. In general, WRF radar assimilation provides a better simulation of spatial and point rain events compared to the WRF model without assimilation which is improvements of rain prediction from WRF radar data assimilation would be more visible in areas close to radar sources and not echo-blocked from fixed objects, and more visible during the rainy season
Contesting the Social Spaces: Gender Relations of Literary Communities in Yogyakarta and Surakarta Wening Udasmoro; Saeful Anwar
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (79.36 KB) | DOI: 10.22146/ijg.44165

Abstract

This research seeks to map the gender relations within literary communities and their contestations in gaining social and financial capital in Yogyakarta and Surakarta social spaces. The presence of literary communities in these spaces, on the one hand, explains the local and specific self-identities of the communities, as well as their heterogeneity in gender relations. In particular, this research maps these communities' differences in expressions, trajectories (visions for the future), themes, narrations, language, and networks based on their gender relations. The Geographic Information System (GIS) method is used to map and explore the gender issues in these literary communities. By understanding the mapping of these literary communities, the dynamics of the social spaces used by these communities can be traced synchronically within a specific period. It can also be followed up when the database is used diachronically over time. This research finds that social spaces that enable open narration are insufficient to ensure the equality of women and men. Flexible domestic spaces for women are also necessary to ensure women to be active in creating the trajectory of the literary communities since they have capacities to do it.
The Spreading of Vernacular Architecture at the Riverways of South Sumatra, Indonesia Maya Fitri Oktarini
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.104 KB) | DOI: 10.22146/ijg.43923

Abstract

The development of past settlements was supported by riverways connecting many regions with ethnic diversities. Inter-ethnic dissemination and contact created new cultural combinations. In the southern part of Sumatra, there are two types of stilt houses: highland architecture and lowland architecture. Both architectures are developed by different ethnic groups spread along different riverways. This study focuses on identifying and analyzing the influence of the riverway in the typology of the vernacular stilt house. The architectural typology data was confirmed by field observations and interviews. The analysis was carried out through the Geographic Information System to correlate the influence of the riverway and the ethnic culture on the distribution of the architecture and its transformations. The results show that the river as a transportation route takes up a more dominant role in the spread of architecture than the boundary of the ethnic culture. The cultural significance shows that the highland architecture in the upstream area has a more original and simpler character than the lowland architecture in the downstream area. The riverway exposes diverse cultures to blend into more complex architecture.
Education among Scheduled Caste Population in India Harihar Sahoo; Sumana Acharya
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (92.672 KB) | DOI: 10.22146/ijg.43192

Abstract

Lack of education among the scheduled castes (SC) population in India may be the main reason for remaining at the lower end of the social structure. Therefore, this study attempts to explore the changing trends in literacy among the SC to find out the determinants of higher education and to explore the major reasons for never enrolling or discontinuing/dropping out from educational institutions among the SC population in India. Using the data from the Census of India and also from National Sample Survey and employing both bivariate and multivariate analysis, the results reveal that though there is an increasing trend in the literacy rate among the SC population, but the rates remain quite below the national average. Gender disparity in literacy is quite evident. The low level of higher education mainly due to reasons like failing in examinations, heavy drop-outs and stagnation caused by their poor socio-economic background. Despite various efforts by the central and state governments to eradicate differences in educational attainment among the social groups through several constitutional steps from time to time there still remain gaps to be bridged.
Landsat 8 Observation of the Internal Solitary Waves in the Lombok Strait I Wayan Gede Astawa Karang; Chonnaniyah Chonnaniyah; Takahiro Osawa
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.143 KB) | DOI: 10.22146/ijg.42655

Abstract

Landsat  8,  Landsat  Data  Continuity  Mission  (LDCM)  satellite,  was  launched  on  11 February 2013 with Operation Land Imager (OLI) sensors. Tis sensor has better radiometric performance than the previous mission, which is quantized in the 12-bit dynamic range due to an increase in the signal-to-noise (SNR) ratio. In this analysis, the spatio-temporal distribution of the propagation of the internal solitary wave (ISW) in the Lombok Strait was extracted from the Landsat 8 images described for the first time.  Tere were 14 ISW events studied for period 2014  -  2015  using  Landsat  8.  Te  manifestations  of  ISW  recorded  on  Landsat  8  images  were then extracted using digitization method to investigate and measure several parameters and ISW distribution in the Lombok Strait. Te estimation results of the average ISW phase velocity in this study are 2.05 ms-1 with the direction of propagation heading north at an average angle of 19.08°. Tis study has shown that Landsat 8 can be used to monitor and analyze several internal wave parameters in the ocean.
Building Information Modeling (BIM) Utilization for 3D Fiscal Cadastre Sadikin Hendriatiningsih; Andri Hernandi; Asep Yusup Saptari; Ratri Widyastuti; Dhendy Saragih
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1877.414 KB) | DOI: 10.22146/ijg.41783

Abstract

Parcels data in Indonesia are still stored in 2-dimensional (2D) geometry which are integrated with other attribute data, such as the case with the Directorate of Land and Building Tax Indonesia. Whereas, building taxes assessment refers to a number of details that require the information to be stored in 3-dimensional (3D) forms. This study aims at the use of Building Information Modeling (BIM) technology, which widely used in building asset management in 3D. This research illustrates the usability of the role of BIM in assessing and managing building taxes in Indonesia. The point clouds were obtained using Terrestrial Laser Scanner (TLS) technology. The point clouds processed so that it can form 3-dimensional geometrical apartment. The attributes of the 3-dimensional model integrated with the geometric model using the BIM concept. The results analyzed to assess whether BIM concept was able to fulfill the needs of the 3D fiscal cadastre in Indonesia.
Modernization of Agriculture and Use of Information and Communication Technologies by Farmers in Coastal Yogyakarta Dyah Woro Untari; Ratih Ineke Wati; Gagar Mewasdinta; Subejo Subejo
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.371 KB) | DOI: 10.22146/ijg.41706

Abstract

In the development process, Information and Communication Technologies (ICTs), which also commonly referred to as electronic media or cyber media have been acknowledged as a new instrument that could facilitate the need of new information and innovation for rural people or farmers. However, several studies reported that extension and communication based-electronic media in developing countries encounter more problems rather than in developed countries. This research aims to investigate the ownership, access, utilization or functions of ICTs for obtaining information supporting the daily life of farmers and for promoting various farming activities in the coastal area of Kulon Progo Regency Yogyakarta. The research method of the study was a descriptive method that has been conducted by a mixed method. The study found that in line with modernization in agriculture, farmers have been using conventional and new electronic media including television, radio and mobile phone with function for getting new information. Conventional electronic media are still dominant while the use of new electronic media has been gradually increasing. Information gathered from ICTs includes social, cultural, economic, health and environmental issues. The use of new electronic media particularly the internet via smartphone has newly started to be utilized among farmers in the coastal farming area who intensively engaged in horticulture crops cultivation mainly for getting and exchange the market information. Information on technological innovation is still dominant among farmers. Better infrastructure and mobility access, improvement of telecommunication network and development of content and format of information provided by new media will be prospective in the future
Assessment of the Current Pollution Status of Jabi Lake in the Federal Capital Territory, Abuja, Nigeria Cyril Kanayochukwu Ezeamaka; Sadiq Queen; Daful Mwanret; Ogbole Moses; Anjide Theresa Wado
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2089.447 KB) | DOI: 10.22146/ijg.40328

Abstract

This paper was aimed at providing the pollution status of Jabi Lake, FCT Abuja. 13 parameters were tested from raw water collected four sampling points. The physicochemical parameters were measured using Hanna multiparametric meter, while transparency was measured using Secchi disc. Dissolved oxygen, Biological and Chemical oxygen demand were measured titrimetrically using standard method. The concentrations of the metals were determined in triplicates. Flame atomic absorption spectrometer was used in the analysis as well as descriptive statistics (mean, standard deviation) and standard error. The Nigerian Industrial Standard and WHO guidelines for domestic water were used to compare the results of the water from the lake. The study reveals that the mean turbidity ranged between 21.6 – 24.2cm and is above the recommended limits of both WHO and NIS. The range of pH was between 6.3 and 8.8. pH is within a neutral range. The study reveals that the mean value of TDS and electrical conductivity is below the recommended limit of both WHO and NIS guidelines. The study shows that there is high concentration of some heavy metals (Cd, Cu, Ni, Mn, Zn, and Fe) in Jabi Lake. Cd, Zn, Fe and Ni are above the permissible limits of the NIS and WHO guidelines, which is an indication of pollution. The study, therefore, recommends that proactive measures be taken on environmental laws in FCT and that environmental/health worker and non-governmental bodies be active in enlightenment campaigns that will alert members of the public to the harm being caused to this important ecosystem.
Human and Economic Resources Mapping Analysis to Evaluate the SDGs Accomplishment in South Kalimantan, Indonesia Ratih Fitria Putri; Josaphat Tetuko SriSumantyo; Sukamdi Sukamdi; Rika Harini
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7779.413 KB) | DOI: 10.22146/ijg.39986

Abstract

Natural resource abundance in South Kalimantan has been expected to optimize public services. The SDGs accomplishment requires an equitable implementation in economic, social, and environmental aspects. This research aimed to (1) discover the human and economic condition and (2) determine the development direction of South Kalimantan Province. It was based on institutional-secondary data that were processed in GIS software and analyzed with both qualitative and quantitative approaches. The results showed that: (1) the human resources in South Kalimantan could accelerate regional development—however, some of the qualitative indicators are associated with poverty complicated by gender disparity—, while the land resources became increasingly limited due to intensive agricultural practices that caused the rise of industrial and trade sectors; and (2) the development of South Kalimantan should improve people’s perception of gender-related topics, recruit more medical workers, and reduce pressures on agricultural land by switching into stable industrial activities.
Conservation Design and Scenario for Flood Mitigation on Arui Watershed, Indonesia Mahmud Mahmud; Ambar Kusumandari; Sudarmadji Sudarmadji; Nunuk Supriyatno
Indonesian Journal of Geography Vol 51, No 3 (2019): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.011 KB) | DOI: 10.22146/ijg.37296

Abstract

Flooding has been natural disaster in Indonesia and elsewhere. This research is designed to create scenarios and designs conservation to mitigate flooding disaster.  Data potential ,vulnerability, and duplicated river covering 0.25% of the targeted flooding area were collected and analysed. Five disain of conservation, natural river as control, river normalization, normalization with gabion stone, river straigtening, and straigtening with gabion stone, are proposed, and main targeted responses of these five scenarios are river current velocity. Effectiveness scenarios were analysed using Anova and Tukey test. The results showed that alignment with gabion stone was the most effective scenario for flooding mitigation since this was the most effective in increasing river current velocity. This could prevent riverbank occurrence of avalanche, accelerate river current, overcome flooding, and prevent future flooding. Other scenarios likes dead clicth ended-hallway, canalization, and riparian reclamation are also possible implemented.

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