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  This is an Open Access Journal Open Access journal
ISSN (Print) 0852-0682 - ISSN (Online) 2460-3945
Published by Universitas Muhammadiyah Surakarta Homepage  [19 journals]
  • Acknowledgement for Reviewers in 2017

    • Authors: Editors Forum Geografi
      PubDate: 2018-01-01
      DOI: 10.23917/forgeo.v31i2.5557
      Issue No: Vol. 31, No. 2 (2018)
  • Impacts of El NiƱo 2015 and the Indian Ocean Dipole 2016 on Rainfall in
           the Pameungpeuk and Cilacap Regions

    • Authors: Martono Martono, Teguh Wardoyo
      Pages: 184 - 195
      Abstract: El Niño and the Indian Ocean Dipole (IOD) are oceanographic phenomena which occur in the tropical Pacific Ocean and the Indian Ocean due to air–sea interactions. These phenomena affect climate variability both regionally and globally. This study was conducted to understand the impacts of El Niño 2015 and IOD 2016 events on rainfall in the Pameungpeuk and Cilacap regions. The data used consists of the NIÑO3.4 index, IOD index, daily rainfall from 1987–2016, daily sea surface temperature from 1987–2016, daily sea surface height from 1994–2016 and pentad sea surface current from 2007–2016. The method used in this research was a descriptive analysis. The results have shown that rainfall in Pameungpeuk and Cilacap was influenced by El Niño 2015 and negative IOD 2016. During El Niño 2015 a decrease in rainfall occurred, whereas during negative IOD 2016 rainfall increased. Rainfall anomalies in the east season and the second transition season during El Niño 2015 in Pameungpeuk reached −107 mm and −374 mm; meanwhile in Cilacap rainfall anomalies reached −111 mm and −218 mm. Conversely, rainfall anomalies during negative IOD 2016 reached 109 mm and 360 mm in Pameungpeuk, and in Cilacap reached 293 mm and 365 mm. Changes in rainfall in Pameungpeuk and Cilacap during El Niño 2015 and negative IOD 2016 events were closely related to the weakening and strengthening of convections in the southern waters of Java.
      PubDate: 2017-12-01
      DOI: 10.23917/forgeo.v31i2.4170
      Issue No: Vol. 31, No. 2 (2017)
  • Analysis of Long-Term Temperature Trend as an Urban Climate Change

    • Authors: Dadang Subarna
      Pages: 196 - 208
      Abstract: Temperature plays a major role in detecting climate change brought about by urbanisation and industrialisation. Most climatic impact studies rely on changes in the average values of meteorological variables such as temperature. This paper attempts to study the temporal changes in the mean value of the air surface temperature over Jakarta city during the last century, specifically in the period 1901–2002.The data used in this study were taken from the Jakarta Climatology Station because they are of are good quality, there are extensive records and there is little missing or blank data. Statistic descriptive methods were employed, including a description of the type of probabilistic model chosen to represent the monthly mean air surface temperature time series. The long-term change in temperature was evaluated using the Mann-Kendall trend test method and the statistical linear trend test; the results of these two tests agreed. During the last 100 years, data observations from the station indicate that the monthly mean value of the air surface temperature of Jakarta city has increased at a rate of about 0.152°C decade–1 and has not exhibited variability signals but has changed on average. Based on the linear regression model, the mean value of the air surface temperature over Jakarta city is estimated to reach around 28.5°C in 2050 and 29.23°C in 2100.
      PubDate: 2017-12-01
      DOI: 10.23917/forgeo.v31i2.4189
      Issue No: Vol. 31, No. 2 (2017)
  • Monitoring Land Cover Changes in the Disaster-Prone Area: A Case Study of
           Cangkringan Sub-District, the Flanks of Mount Merapi, Indonesia

    • Authors: Ronggo Sadono, Hartono Hartono, Mochammad Maksum Machfoedz, Setiaji Setiaji
      Pages: 209 - 219
      Abstract: Volcanic eruption is one of the natural factors that affect land cover changes. This study aimed to monitor land cover changes using a remote sensing approach in Cangkringan Sub-district, Yogyakarta, Indonesia, one of the areas most vulnerable to Mount Merapi eruption. Three satellite images, dating from 2001, 2006 and 2011, were used as main data for land cover classification based on a supervised classification approach. The land cover detection analysis was undertaken by overlaying the classification results from those images. The results show that the dominant land cover class is annual crops, covering 40% of the study area, while the remaining 60% consists of forest cover types, dryland farming, paddy fields, settlements, and bare land. The forests were distributed in the north, and the annual crops in the middle of the study area, while the villages and the rice fields were generally located in the south. In the 2001–2011 period, forests were the most increased land cover type, while annual crops decreased the most, as a result of the eruption of Mount Merapi in 2010. Such data and information are important for the local government or related institutions to formulate Detailed Spatial Plans (RDTR) in the Disaster-Prone Areas (KRB).
      PubDate: 2017-12-12
      DOI: 10.23917/forgeo.v31i2.5324
      Issue No: Vol. 31, No. 2 (2017)
  • Spatial Analysis of the River Line and Land Cover Changes in the Kampar
           River Estuary: The Influence of the Bono Tidal Bore Phenomenon

    • Authors: Aprizon Putra, Ulung Jantama Wisha, Gunardi Kusumah
      Pages: 220 - 231
      Abstract: The Kampar River estuary is well known for a tidal-bore phenomenon called ‘Bono waves’. The emergence of Bono waves has a significant influence on the estuary system of Kampar River. Scoured materials, resulting from the hydraulic jump of the tidal bore, are carried into the middle of the river. These materials are then deposited when the velocity of the river decreases as a result of the collision of the tidal current from the sea and the river flow. The aim of this was to determine the area of erosion and sedimentation with respect to the river line and perform land-cover change analysis for the area around the Kampar River estuary for the years of 1990, 2007, 2010 and 2016. The method employed was the supervised maximum likelihood (SML) classifications, which uses an overlay technique to yield alternate information on the river line and land-cover changes in the form of time-series data. The largest erosion occurred during 1990–2007, for which the average change reached 2.36 ha/year. The smallest erosion occurred during 2010–2016, when the change reached 0.41 ha/year. The largest land-cover change was found during 1990–2016, which occurred in the land for agriculture/plantations (11.57 ha/year), building/settlement (48.11 ha/year) and scrubland (30.88 ha/year). The other types of land cover, such as bare land and sediment deposition, varied every single year. The changes to the river line are caused by land-cover changes, and the Bono waves that lead to erosion and sedimentation that is not stable in the middle of the river and downstream.
      PubDate: 2017-12-15
      DOI: 10.23917/forgeo.v31i2.5290
      Issue No: Vol. 31, No. 2 (2017)
  • Sustainable Tourism Development: the Adaptation and Resilience of the
           Rural Communities in (the Tourist Villages of) Karimunjawa, Central Java

    • Authors: Budi Setiawan, R Rijanta, Muhammad Baiquni
      Pages: 232 - 245
      Abstract: From 2009 to 2015, the growth of tourism in the tourist villages (desa wisata) of Karimunjawa underwent rapid progress. However, the level of poverty in Karimunjawa remained high. Nevertheless, the involvement of rural people in the sustainable development of tourism has received only limited discussion. Therefore, this article discusses the rural communities’ adaptation and resilience in Karimunjawa with the support of sustainable development planning in tourist villages. It covers the background of sustainable development, the elements of the communities’ adaptive capacity and resilience, and the role of the regional government. Empirical evidence of variations in the capacity to respond to changes of socioeconomic and ecological environments due to tourism development is presented. In addition, a case study is used in this article to describe how the people learned from their experience, knowledge, and past efforts. To obtain the necessary information, in-depth interviews were conducted with a number of key informants in the tourist villages of Karimunjawa, which were selected via purposive and snowball sampling. The results of the research show that social resilience will increase among those communities that are capable of accessing flexible social networks. These social networks are practical tools that open up the dissemination of new information and knowledge. This is a key element for a stronger process of transformation. Furthermore, communities that have capital and financial access as well as skills will also be capable of adaptation to the transformation process.
      PubDate: 2017-12-25
      DOI: 10.23917/forgeo.v31i2.5336
      Issue No: Vol. 31, No. 2 (2017)
  • Inclusive Development through Providing Vertical Housing for Low Income
           Family in Yogyakarta Urban Areas

    • Authors: Rini Rachmawati, Charina Vertinia Budiarti, Diana Febrita, Estin Sulistyani
      Pages: 246 - 257
      Abstract: Inclusive development is meant to accommodate the marginalised people, most of whom are the poor with the problem of fulfilling their need for housing. The government has tried hard to meet the need of housing by constructing rusunawa. This paper is aimed at describing the provision and uses of rusunawa, both in cities and peri-urban area by studying the cases in the City of Yogyakarta, Sleman Regency, and Bantul Regency. The study was conducted by doing observation and both structured and in-depth interviews. The research results show that rusunawa were viewed as one solution to help a low-income family in fulfilling their need for housing. In some cases in the City of Yogyakarta, rusunawa plays an essential role in preventing the settlement along both sides of rivers from becoming slum areas. Rusunawa in both Regencies of Sleman and Bantul is located near the city, so it is easy for the settlers to get to their workplace. The construction of rusunawa has also paid attention to the disabled by providing exceptional facilities. The same case is providing a playground for children and facilities for early education for young kids. However, there have not been special facilities for the elderly and pregnant women.
      PubDate: 2017-12-30
      DOI: 10.23917/forgeo.v31i2.5132
      Issue No: Vol. 31, No. 2 (2017)
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