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Dewa Made Atmaja
Universitas Pendidikan Ganesha
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Pemetaan Lokasi Rawan Bencana Banjir Berbasis Sistem Informasi Geografis di Kecamatan Babat Kabupaten Lamongan Hariri, Fauzi; Wisnawa, I Gede Yudi; Atmaja, Dewa Made
Jurnal Ilmiah Wahana Pendidikan Vol 11 No 12.A (2025): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to map flood vulnerability levels in Babat District, Lamongan Regency, using a scoring and overlay method based on Geographic Information Systems (GIS). Six parameters were analyzed, including rainfall, slope, soil type, land use, elevation, and river buffer. The results classified the area into four vulnerability levels: not vulnerable, moderately vulnerable, vulnerable, and highly vulnerable. The highly vulnerable class dominates with an area of approximately 2,850.10 ha (44.18%), followed by the vulnerable class covering ±2,697.93 ha (41.79%), moderately vulnerable ±802.75 ha (12.44%), and not vulnerable ±107.62 ha (1.59%). The main contributing factors to flood vulnerability are flat topography, alluvial soil characteristics, high rainfall, and proximity to the Bengawan Solo River. The resulting vulnerability map is expected to serve as a reference for local governments and communities in developing flood mitigation strategies and supporting spatial planning in Babat District.
Coastal Development Implications to changes of Coastal Typology in Denpasar City Environment Atmaja, Dewa Made; Gunamantha, I Made; Bharata, Ida Bagus Arya Yoga
Sriwijaya Journal of Environment Vol 10, No 1 (2025): Environmental Impacts
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2025.10.1.1-10

Abstract

The physical development that occurs can change natural landscape units and none other than that is the coastal typology in the coastal area of Denpasar City with high development intensity. This research aims to describe the implications of coastal development on changes in coastal typology in Denpasar City. The method in this research design is quantitative descriptive using QGIS tools for analysis and Landsat satellite image data available on Google Earth Pro for the period December 1990, 2005, and 2020. The results of the research show that in development implications for changes in coastal typology that occur in the coastal area of Denpasar City include the addition or widening of the coastline for the anthropogenic coast coastal typology for the 1990-2005 period which was ±21.12 km long and in the 2005-2020 period it was increased to ±5.14 km long. The widening of the coastline in the marine deposition coast typology experienced an increase of ±1.7 km in the 1990-2005 period. Changes that occurred as a result of development implications that occurred during the 1990-2005 period also included the loss of the marine deposition coast typology along ± 10.61 km. Apart from that, in the same period, ± 1.66 km along the coastal typology of build-by organisms disappeared. Residential settlements on Serangan Island, which included the anthropogenic coast typology, also disappeared during this period for ± 1.18 km.
Co-Authors ., In&#039 A Sediyo Adi Nugraha Anak Agung Gede Sugianthara Bagus Arya Yoga Bharata, Ida Bharata, Ida Bagus Arya Yoga Gede Iwan Setiabudi Hariri, Fauzi I Gede Astra Wesnawa I Gede Budiarta I Gede Yudi Wisnawa I Gst Ngr Yoga Jayantara I Made Gunamantha I Putu Ananda Citra I Wayan Eka Krisna Putra I Wayan Krisna Eka Putra Ida Bagus Kade Aditya Manuaba Ida Bagus Made Astawa In'Am Azizur Romadhon . Kadek Ryan Adi Nugraha Komang Evi Krisnayanti Luh Putu Nandha Maha Dewi Made Pasek Oka Adnyana Made Sinta Devi Dian Prativa Mahayani, Ni Nyoman Tri Manuaba, Ida Bagus Kade Aditya Mardiana, Oriza Meris Otniel Stefanus Tamonob Muhamad Faisal Muhamad Faisal, Muhamad Ni Nyoman Tri Mahayani nurhayati, ummy aisyah Pratiwi, Elok Surya pratiwi, ni luh adhelia fajar Putra, I Wayan Eka Krisna Putu Indra Christiawan Surya Darma Yudistira Suryana, I Gede Putu Eka Wayan Damar Windu Kurniawan Wayan Damar Windu Kurniawan Widyasari, Ni Putu Setya Wulandari, Ni Ketut Catur Wulandari, Ni Nyoman Tri Yudistira, Surya Darma