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Identification of Physical Characteristics and the Change of Mangrove Region in Coastal Southern Part of Padang City, West Sumatra - Indonesia Yatno, Triyatno Yatno; Febriandi, Febriandi; Putra, Aprizon; Kamal, Eni
Sumatra Journal of Disaster, Geography and Geography Education Vol 3 No 1 (2019): Sumatra Journal of Disaster, Geography and Geography Education (SJDGGE)
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.478 KB) | DOI: 10.24036/sjdgge.v3i1.196

Abstract

The research about the identification of mangrove physical condition and the change of mangrove area has aims are knowing of mangrove physical condition and the change of mangrove area in the coastal region southern part of Padang city. The method used in this research is the field survey and multi-temporal satellite imagery analysis in 2001 and 2018 year. Based on the field survey at the date of August 18, 2017 generally the mangrove that found in research location i.e Rhizophora Apiculata, Rhizophora mucronata, Sonneratia alba, and Nypa. The spatial distribution of the mangrove ecosystem is dependent on the ecological conditions of the area as reflected by the types of mangrove vegetation that grows and develops in the research location. A decrease in mangrove area that occurred between of 2001 to the 2017 years i.e in the coastal region of Bungus bay i.e 5.54 ha, where the decrease in mangrove area occurred because some mangrove plants were cut down and made the settlement land, while in the region of Sungai Pisang bay happen to increase in mangrove area i.e 36.12 ha, where the increase in mangrove area occurred because of the region obstructed by big waves of the sea (protected small the islands).
The Estimation of Mangroves Area and Density of Mangroves Changes Use the Remote Sensing Data at Northheast Province of Aceh, Indonesia Febriandi, Febriandi
Sumatra Journal of Disaster, Geography and Geography Education Vol 1 No 1 (2017): Sumatra Journal of Disaster, Geography and Geography Education
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (702.29 KB) | DOI: 10.24036/sjdgge.v1i1.43

Abstract

The aim of the research to mapping mangrove estimate mangroves area in time series data at the years 2000, 2005, 2011, and 2015, and looking for density of mangroves changing at the Northeast Province of Aceh. The methodology use data Landsat TM5, OLI TIRS, Administration map, and tools use by ENVI 4.5, ArcGIS 10.1, technical analysis to interpretation mangroves area used the algorithm the maximum likelihood classification, Kernel density to calculate density of mangroves changing. Result of the research. From the estimation of mangrove land with intrepetasi satellite imagery obtained by maximum likelihood algorithma cotton area of mangroves in the study are always varied and changing, change-oriented land areas surrounding existing land use is not mangrove in mangrove areas. Mangrove areas relative change in Kernel density indicated in the model to observe the point of incidence of the changes experienced more change in the frequency changes in the form of multi-time repeated changes of the time period, and changes in the relatively small area that is always on changing every time calculations.
The Strategy of Geography Teachers in Implementing Standards Process of Permendikbud Number 22 the Year 2016 on Geography Learning in SMA Negeri Solok Regency Helmi, Dewilna; Febriandi, Febriandi
Sumatra Journal of Disaster, Geography and Geography Education Vol 2 No 1 (2018): Sumatra Journal of Disaster, Geography and Geography Education Volume 2 Number 1
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.763 KB) | DOI: 10.24036/sjdgge.v2i1.123

Abstract

The purpose of this research to know the implementation of standard process that consists of analyzing the lesson plan that prepared by the teacher, analyzing the implementation of learning process, seeing the constraints in implementing the standard process, formulating the teacher strategy in implementing process standard and decreasing the priority of policy direction in implementing process standard in SMA Negeri Solok Regency. The type of research used a mixed method which combines qualitative and quantitative research. Data were collected through, observation, interview, and documentation. Data analysis methods consist of reduction, presentation and verification, SWOT analysis and Interpretive Structural Modeling. The results of the research indicate that: 1) the implementation of standards process seen in the teacher's learning plan has designed syllabus and lesson plan but not fully in accordance with the steps and components of RPP preparation.2) In the implementation of classroom management learning process still not fully in accordance with standards process. Judging from the methods, models, media mastery of the material has not been effective and efficient according to the 2013 curriculum this was due to the lack of understanding of teachers towards the curriculum of 2013, from the assessment of learning outcomes in all three aspects of the assessment conducted only the assessment of knowledge, to attitudes assessment and skills not implemented maximally. 3) The obstacle faced is the unavailability of time in the preparation of the implementation plan of learning because the burden of teaching is high enough, difficulties in the implementation of learning are influenced by low student learning interest and in the assessment of learning still constrained by time. 4) There were nine strategies derived from field research. 5) Priority policy directives that arise to improve the implementation of process standards in geography learning were: Increased interest of teachers in training activities held in MGMP forums so as to improve teacher competence, Curriculum Training 2013 to improve understanding of the reforms conducted in ministerial regulations, academic supervision by school principals and teachers to improve teachers' ability to manage the classroom, and to develop media and interesting learning resources to foster student interest in learning.
Strategy for Community Adaptation in Facing Flood Natural Disasters in Pesisir Selatan District, West Sumatra Triyatno, Triyatno; Ikhwan, Ikhwan; Febriandi, Febriandi
Sumatra Journal of Disaster, Geography and Geography Education Vol 2 No 2 (2018): Sumatra Journal of Disaster, Geography and Geography Education
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.426 KB) | DOI: 10.24036/sjdgge.v2i2.170

Abstract

Adaptation of the community to flood natural disasters is part of the flood mitigation natural disaster that often occurs in the rainy season. The aims of this research is to analyze landform units and land characteristics that have flood hazards and community adaptation strategies in dealing with flood natural disasters. The method used in this research is the survey method, which is to collect data on land characteristics as characteristics or characteristics of flooded areas and interviews with local communities about adaptation strategies undertaken to deal with flood natural disasters. The results showed that the landform units formed due to the flood process in the study area were in the form of floodplains, back swamps, alluvial terraces, depression inter beach ridge, and alluvial plain complexes. The unit characteristics of landforms generally have flat morphometry with slopes ranging from 0 - 2%, the genesis of these landform units due to fluvial and marin processes. The constituent material in this area is mud to coarse sand. The rock conditions in this area are rocks originating from volcanoes and undergoing a process of destruction due to processes from the river so that the rocks in this area are gravel, rough sand, fine sand. Soil conditions in each unit of landform also vary from the formation of soil to on newly developed land. Vegetation that grows in each unit landform of this is in the form of natural vegetation and lovely water vegetation or vegetation which requires a lot of water for its growth and development. The community strategy in dealing with flood natural disasters is in the form of staging houses, knowing the time of occurrence of tides, and opening the river estuary if the river estuary is covered by sediment.
Model of Land Use and Land Cover Change in Koto XI Tarusan District Yatno, Triyatno; Ikhwan, Ikhwan; Febriandi, Febriandi
Sumatra Journal of Disaster, Geography and Geography Education Vol 4 No 2 (2020): Sumatra Journal of Disaster, Geography and Geography Education ( Desember Edition
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sjdgge.v4i2.345

Abstract

The article on models of land use change and land cover in Koto XI Tarusan District, Pesisir Selatan Regency, West Sumatra aims to model changes in land use and land cover in Koto XI Tarusan District, Pesisr Selatan Regency, and to find out the accuracy of the results of modeling changes in land use and land cover 2025 and 2030.The method used in this research is quantitative method using remote sensing data in the form of 2000 Landsat 5 images, 2009 Landsat 7 images, and 2019 Landsat 8 OLI images. The driving force used in this study is the distance from the road, the government center, health facilities, educational facilities, slopes, and elevations.The results showed that the results of modeling changes in land use and land cover in 2025 and 2030 indicated that there were changes in land cover of primary forest, secondary forest and mixed orchard. Land uses that have increased aruilt up area, and oil palm. The results of modeling accuracy test using the overall accuracy obtained in 2025 accuracy is 92.50 % and in 2030 is 89.75%. The accuracy results show that the modeling results have been very good.
Application of Empirical Bathymetry Method on Sentinel 2A for Measuring Water Depth of Maninjau Lake Wendi Arifin; Febriandi Febriandi; Muhammad Hanif; Triyatno Triyatno; Ernieza Suhana Mokhtar; Eka Mutia
EPI International Journal of Engineering Vol 4 No 1 (2021): Volume 4 Number 1, February 2021
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022021.01

Abstract

Lake Maninjau is a lake formed by volcanic activity. Many human activities occur on the catchment area, but also in exploited waters. This study aims to mapping the depth of the waters in the Lake Maninjau and assess the effect of field sample distribution on the quality results of the image transformation. The data used are satellite imagery Sentinel 2A, results of point survey. The analysis technique uses the normalized difference water index algorithm, sun glint, empirical bathymetry method and linear regression. The result of the research which is has found that variations of distribution into the dispersion of the recording process of the depth of the object represented by cell. The depth of the water from the results of this transformation refers to the measurement sample in the field survey. The maximum depth of the waters is in the range of 107m. Shallow waters are predominantly distributed in the northern region which is the out late of Lake Maninjau. The southern area forms a deep basin. The distribution of this sample is in the form of an empirical bathymetry map and the relationship between the results of field measurements and the transformation with a regression value of 0.769, this indicates the consideration of total and distribution of survey sample is influence on quality of the results of the transformation.