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All Journal Geoplanning : Journal of Geomatics and Planning Jurnal Kelautan Tropis
Ruzana Dhiauddin
Research Institute for Coastal Resources and Vulnerability, Ministry of Marine Affairs and Fisheries
Earth & Planetary Sciences

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Indonesia Marine Debris: Banda Aceh Coastal Environment Identification Koko Ondara; Ruzana Dhiauddin
Jurnal Kelautan Tropis Vol 23, No 1 (2020): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v23i1.6238

Abstract

Banda Aceh City, having an area of 61.36 km² with a coastline of 11 km which covers Ulee Lheu Beach to Alue Naga Beach. The research was carried out to determine marine debris statistics (type, amount and mass) which divided into 7 categories; plastic, metal, glass, rubber, processed wood (organic), clothing, and ceramics. This research also conducted to complement the Indonesian marine debris data which currently incomplete. We choose Banda Aceh as the preliminary location because its area affected by dynamic oceanographic parameters of the Indian Ocean, Bay of Bengal and bordered by several countries that could be a source of marine debris, thus making this research is important to do. Marine debris data were collected from March to May 2019, on the coast and waters surface. Data collection on the beach is carried out every 28 days using the transect method, while on the water surface by riding boats using visual observation techniques. Statistical results show that inorganic litter has the highest percentage and mass, which a mass density reached 288.37 g/100 m2 at Ulee Lheu Beach and 64.96 g/1 00 m2 at Alue Naga Beach. Plastic type dominates the type of marine debris on the beach about 92.2% and 51.4% on the water surface. The amount of plastic especially bottle continues to accumulate, it will not only endanger marine waters ecosystem but also potential to affect and damage the coastal environment. The results of this study are expected to provide input / recommendations for the government and related institutions in waste management in coastal and marine areas and tourism in a sustainable and sustainable way.
Assessing Urban Development Impacts in the Padang Coastline City, West Sumatra Indonesia; Coastline Changes and Coastal Vulnerability Ulung Jantama Wisha; Ruzana Dhiauddin; Koko Ondara; Wisnu Arya Gemilang; Guntur Adhi Rahmawan
Geoplanning: Journal of Geomatics and Planning Vol 9, No 2 (2022)
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/geoplanning.9.2.73-88

Abstract

The capital coastline city of Padang is intensively developed to enhance tourism attractions and protect the coastline from natural hazards and disasters. Massive urban developments applied in the coastal area have not gone well, and several regions have been eroded and unstable. This study aimed to determine the significant change in Padang city's coastline due to rapid urban development in the coastal area. Spatial analyses are employed to determine the coastline changes and coastal vulnerability, such as a DSAS (Digital Shoreline Analysis System) and Smartline-associated CVI (coastal vulnerability index) approach. A hydrodynamic and coastal model is also used to illustrate the transport mechanism and predict the level of abrasion. The result shows that substantial coastal changes and vulnerability have occurred. Of particular concern, 66 % of Padang's coastline is eroded with a rate of 0.21 - 49.4 m/year, 1% stable, and the rest, 34% experiencing accretion. More than 9% of coastal areas are categorized as highly vulnerable. The numerical model confirms the abrasion in several significant areas in Padang City, proven by the relatively high value of bed-level change (ranging from 0.39 up to -4 m) and considerable variability of seasonal sediment transport and suspended materials. The erratic hydrodynamics and ineffective coastal building are the primary factors triggering Padang City's coastal instability.
Co-Authors Guntur Adhi Rahmawan Koko Ondara Koko Ondara Ulung Jantama Wisha Wisnu Arya Gemilang