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All Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Hutan Tropika Jurnal Green Growth dan Manajemen Lingkungan Journal of Environmental and Development Studies
Aththorick, T. Alief
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Journal : Journal of Environmental and Development Studies

 1 
Analysis of Flood Inundation Vulnerability to the Deli Watershed of North Sumatra Using Remote Sensing and GIS Techniques Wardhana, Arya; Samsuri; Aththorick, T. Alief
Journal of Environmental and Development Studies Vol. 5 No. 01 (2024): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v5i01.12340

Abstract

Deli watersheds are listed as one of the most heavily damaged watersheds in Indonesia, and this causes many problems, such as floods, flash floods, and landslides. Studying this watershed becomes essential because the Deli watershed passes through a major city and has become the main source of flood and other natural disasters in the city such as Medan, The study aims to detect the vulnerability level of the areas around the watershed and the most rapid and possible way to study it is by using remote sensing and GIS, the overlay method by considering several parameters that affect the level of vulnerability to flooding in Deli Watershed, North Sumatra. Some of the parameters considered include the topographic wetness index, slope, land elevation, river flow density, land use cover, normalized difference vegetation index, distance to river, and rainfall. Each parameter is given a weight and value according to each classifier. The overlay process is carried out using ArcGIS 10.8.1 software, results are divided into 5 levels of area vulnerabilities all around the area, the study shows that all parts of Medan City in the Deli watershed have a high level of flood vulnerability and some areas with higher ground elevation such as Tanah Karo have spots area that is vulnerable with floods such as Daulu District with 0.45 ha and Semangat Gunung District with 0.63 ha of its areas are vulnerable to floods. The Topographic wetness index, Normalized difference vegetation Index, slope, and land use are the main factors causing flooding with weighting values 16, 13, 11, and 14. The other parameters elevation, flow density, distance to the river, rainfall, and soil class each have weighting values 7, 10, 11, 8, and 10. Slope with a range of 0-8% in most areas of Medan City are classified as very prone to flood inundation. This is due to the area's flat topography and low river flow density, the existing 3.5 km old sewer in the Deli Tua area is unable to accommodate the flood inundation load in the city of Medan and it is necessary to build two new sewers which are more effective and efficient in diverting the flow of water, before entering the city of Medan which makes the area vulnerable to becoming a water catchment area when it rains, thereby increasing the risk of flooding. With this flood-prone map, efforts to manage and mitigate floods in Medan City can be carried out. Information on vulnerable locations can be used to take appropriate preventive and countermeasures, such as building adequate drainage, regulating land use, and controlling river flows.
Management Strategy for Public Green Open Spaces in Medan City Using SWOT Analysis Al Fatah, Surya; Aththorick, T. Alief; Rahmawaty; Hamzah, Muhammad Kali
Journal of Environmental and Development Studies Vol. 5 No. 02 (2024): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v5i02.18179

Abstract

Medan City, the third-largest city in Indonesia, faces significant challenges in managing its public green open spaces (RTH) due to high population density, rapid urbanization, and insufficient green space, which falls far short of the 30% mandated by law. This research assesses the management of public green spaces in Medan through a SWOT analysis, revealing internal strengths such as a Regional Spatial Plan and government commitment, alongside weaknesses like suboptimal management, lack of coordination between agencies, and inadequate regulations. External factors, including opportunities from NGO funding and potential land acquisition, contrast with threats like rapid population growth and misuse of green spaces. Through data collection methods, including focus group discussions, questionnaires, and interviews with key stakeholders, the research identified key areas for improvement in green space management. Strategic recommendations include strengthening policies, increasing public awareness, optimizing cross-sector collaboration, and promoting sustainable urban planning. Additionally, leveraging green spaces for economic growth through multifunctional uses can enhance their value to the community. This study concludes that public green open spaces in Medan City can contribute significantly to sustainable urban development and environmental balance if managed more effectively, with better coordination, stronger regulations, and resource allocation. The findings aim to provide valuable insights for urban planners and policy makers in achieving urban sustainability goals.
Co-Authors Abda Abda Abdul Rauf Ade Fitria Al Fatah, Surya Aning Tedong, Peter Arif NURYAWAN Damayani, Ema Erwin Nyak Akoeb, Erwin Nyak Fitra Syawal Harahap Fuad Abdullah, Muhammad Fujiwara, Takahiro Hamzah, Muhammad Kali Harahap, Darmadi Erwin Hasmadi Ismail, Mohd Ismail, Mohd Hasmadi kholizah, Siti Masrizal Saraan Pasaribu, Khatarina Meldawati Piliang, Averrous Fazlurrahman R. Hamdani Harahap Rahmawaty, Rahmawaty Saharman Gea Samsuri Seca Gandaseca Sovia Lenny Syauki, Azri Syawal Harahap, Fitra T. Sabrina Tanjung, Dede Syahputra Tedong, Peter Aning Wardhana, Arya Wini Dirgahayu Yuan Alfinsyah Sihombing