Browsing by Author "Marfai, Muh Aris"
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Item Comparsion of TRMM Precipitation Satellite Data over Central Java Region – Indonesia(Wydział Nauk Geograficznych i Geologicznych Uniwersytetu im. Adama Mickiewicza, 2018-09) Sekaranom, Andung Bayu; Nurjani, Emilya; Hadi, M. Pramono; Marfai, Muh ArisThis research aims to compare precipitation data derived from satellite observation and ground measurements through a dense station network over Central Java, Indonesia. A precipitation estimate from the Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) 3B42 Version 7 are compared with precipitation data from interpolated rain gauge stations. Correlation analysis, mean bias error (MBE), and root mean square error (RMSE) were utilized in the analysis for each thee-monthly seasonal statistics. The result shows that the 3B42 products often estimate lower rainfall than observed from weather stations in the peak of the rainy season (DJF). Further, it is revealed that the 3B42 product are less robust in estimating rainfall at high elevation, especially when humid environment, which is typical during the rainy season peak, are involved.Item Food insecurity as a basis for drafting a Strategic Food Sovereignty Plan: A case study of the Kutai Kartanegara District, Indonesia(Bogucki Wydawnictwo Naukowe, 2017) Subejo; Fidiashtry, Al; Aryudiawan, Candra; Suadi; Awaluddin L; Marfai, Muh ArisThis study aims to analyse food sovereignty strategies in an effort to eradicate poverty in a micro-scale region by strengthening its food security status. The research was conducted in the Kutai Kartanegara District East Kalimantan Province in Indonesia. Food insecurity status in the study area was determined based on nine food security indicators. The 237 villages in the Kutai Kartanegara District were ranked based on four classifications of vulnerability to food insecurity. The results showed that 3.80% of the villages were highly vulnerable, 5.06% were vulnerable, 8.86% were slightly vulnerable and 82.28% were food secure. While Kutai Kartanegara was a food secure district, in order to maintain its food security status and enhance the performance of the villages that are still vulnerable to food insecurity, local government, and related stakeholders must work together to develop strategies to improve agricultural productivity, increase the region’s human resources capability and strengthen its infrastructure so food can be more readily accessed.Item Impact of coastal inundation on ecology and agricultural land use case study in central Java, Indonesia(Wydział Nauk Geograficznych i Geologicznych Uniwersytetu im. Adama Mickiewicza, 2011) Marfai, Muh ArisFocusing on the regional scale, this study provides information concerning the existing ecological problems associated with coastal inundation in the northern part of coastal area in Central Java Province, Indonesia. The objectives of this paper are to map the coastal inundation, to investigate the impact of coastal inundation on coastal environment and ecology, and to assess the impact of inundation on agricultural land use. An integration of techniques, namely neighborhood analysis, iteration operation, and superimposed analysis method has been applied to generate the digital map and to analyze the impact of inundation. Fieldwork measurement has been done using cross-profiling in order to observe the impact of inundation on the coastal ecosystem. Based on the scenario of 100 cm and 150 cm of inundation, the affected area is about 15 207.6 Ha and 16 687.31 Ha, respectively. Fishpond, dry farming and paddy field are the most affected agricultural areas due to coastal inundation.Item Impact of sea level rise to coastal ecology: a case study on the northern part of Java Island, Indonesia(Wydział Nauk Geograficznych i Geologicznych Uniwersytetu im. Adama Mickiewicza, 2014) Marfai, Muh ArisThe coastline of Indonesia, which borders almost 17,500 islands and the sea and extends for more than 80,000 km, is vulnerable to sea level rise. This paper aims to investigate the impact of sea level rise on coastal ecology in Indonesia focusing on coastal area of Jakarta, Pekalongan, Semarang and Demak in the northern part of Java Island. Geo-spatial data, i.e. satellite images and maps were used to monitor the environmental changes and primary data were obtained through field survey and observation on the specified area. In Jakarta, sea level rise has been predicted to bring great damages to infrastructure in coastal area. Multiple impacts of sea level rise towards mangrove, agriculture, and aquaculture ecosystem occurs in Pekalongan. Semarang coastal area also suffers from the widening spread of health problems as the coastal inundation increases. At the same time, Demak experiences major losses on mangrove and aquaculture ecosystem due to sea level rise.Item Preliminary assessment of coastal erosion and local community adaptation in Sayung coastal area, central Java – Indonesia(Wydział Nauk Geograficznych i Geologicznych UAM, 2012) Marfai, Muh ArisDynamic environment in coastal area, especially due to coastal erosion process, has negative impact on human environment. Sayung coastal area, located in Central Java-Indonesia, has experienced severe impact of coastal erosion. As the result of the coastal erosion, hundreds of settlement located in coastal area has been destructed. Moreover, fishponds as the land use dominated in the coastal area also has been severely destroyed. Besides the coastal erosion, increasing of inundated area due to sea level rise also threaten the local community. Although devastating impact suffering the coastal area, the people of Tambaksari, as the part of Sayung area, decided to live and adapt with the coastal erosion. This paper aims to identify the coastal erosion and understand adaptation strategies held by the local community related to reduce the impact of the coastal erosion. Based on this research, various adaptation strategies has been identified, namely (1) Planting mangrove alongside the shoreline, (2) elevating the ground level, (3) building staged house, (4) utilizing deep well for freshwater supply, (5), maintaining social interaction with mainland community, (6) Collecting fish from the mangrove as the food, and (7) changing work into the tourism sector.