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All Journal Jurnal Pendidikan Geografi Undiksha GEA, Jurnal Pendidikan Geografi Jurnal Spasial: Penelitian, Terapan Ilmu Geografi dan Pendidikan Geografi BULLET : Jurnal Multidisiplin Ilmu Journal of Geographical Sciences and Education Jurnal Geosaintek
Aliyan, Silmi Afina
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Humanities Astronomy Earth & Planetary Sciences Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Physics Social Sciences

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Determination of Physical and Social Vulnerability Zones In Cisarua District, West Bandung Regency, Using Remote Sensing and Geographical Information Systems Pamungkas, Totok Doyo; Somantri, Lili; Aliyan, Silmi Afina; Firdaus, Rival Akbar
Jurnal Pendidikan Geografi Gea Vol 24, No 1 (2024)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v24i1.59221

Abstract

Cisarua is an area in West Bandung that is categorized as prone to earthquakes due to its position close to the Lembang fault. Research in determining physical and social vulnerability zones is needed to reduce the impact of earthquake disasters and determine the relationship between social and physical vulnerability. The research approach uses quantitative analysis with scoring, weighting, and overlay using remote sensing spatial analysis and geographic information systems. Data collection techniques for physical vulnerability variables are secondary data indicators of building density, length of the road network, and the number of permanent buildings, while social vulnerability variables are secondary data indicators of population density, population under five, elderly, women, and persons with disabilities. The results of the study obtained a mapping of the level of physical vulnerability in Cisarua District with a very high score, namely Jambudipa Village, while the lowest scores were in the areas of Pasirhalang Village, Padaasih Village, Tugumukti Village, Sadangmekar Village, and Cipada Village. For mapping the level of social vulnerability in Cisarua District, a very high score was found in the Jambudipa Village area and very low in Tugumukti Village. The two levels of vulnerability produce a relationship pattern of linearity comparison of scores between physical and social. It is related to population density indicators that affect building density
Analisis Spasial Sebaran Lokasi Wisata di Kabupaten Pangandaran Himayah, Shafira; Somantri, Lili; Maryani, Enok; Ihsan, Haikal Muhammad; Aliyan, Silmi Afina; Astari, Annisa Joviani
Jurnal Pendidikan Geografi Undiksha Vol. 11 No. 3 (2023): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v11i3.71876

Abstract

Jawa Barat adalah provinsi yang memiliki objek wisata alam dan kebudayaan yang tidak kalah indah dibanding provinsi lain di Indonesia, salah satunya adalah Kabupaten Pangandaran yang upaya pengembangan kepariwisataannya akan membawa dampak baik bagi kehidupan masyarakat dan pembangunan daerah sehingga perlu dikaji dengan seksama. Salah satu cara yang dapat digunakan untuk mengkaji kepariwisataan secara spasial adalah dengan menggunakan teknologi sistem informasi geografis. Adapun tujuan dari penelitian ini adalah: 1) Memetakan sebaran lokasi wisata di Kabupaten Pangandaran, 2) Menganalisis aksesibilitas lokasi wisata di Kabupaten Pangandaran. Data yang digunakan pada penelitian ini adalah data lokasi pariwisata di Kabupaten Pangandaran berdasarkan plotting GPS, serta data batas administrasi dan jaringan jalan yang diperoleh dari Badan Informasi Geospasial. Berdasarkan hasil pemetaan, saat ini terdapat 67 lokasi wisata di Kabupaten Pangandaran. Lokasi wisata menyebar di setiap Kecamatan yang ada di Kabupaten Pangandaran, dan jenis wisata yang menjadi unggulan adalan wisata bahari. Berdasarkan hasil analisis keterjangkauan, diperoleh kesimpulan bahwa saat ini sarana infrastuktur jalan sudah cukup memadai untuk mempermudah akses ke lokasi wisata, namun belum banyak moda transportasi yang tersedia.
ANALISIS SPASIAL GENANGAN BANJIR MENGGUNAKAN CITRA SENTINEL-1 SYNTHETIC APERTURE RADAR (SAR) DI KABUPATEN INDRAMAYU Ramadhan, Zidan; Salma, Ghina Yusriyyah; Nulhakim, Diki Lukman; Ridwana, Riki; Aliyan, Silmi Afina
Jurnal Spasial Vol 11, No 2 (2024)
Publisher : Program Studi Pendidikan Geografi Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/js.v11i2.9905

Abstract

Floods are one of the many disasters that often occur in Indonesia. Based on data released by BNPB (2017), approximately 31.3% of natural disasters that occur in Indonesia are floods. In general, floods also frequently occur in the administrative area of the Indramayu Regency. Indramayu, which is a coastal area and has topography with an average slope of 0-2%, certainly increases the potential for flood disasters. To help deal with the problem of frequent flooding, radar system remote sensing technology can be utilized to map flood inundation areas effectively. This research was conducted to help identify and map the location of flood inundation in Indramayu Regency using Sentinel-1 multi-temporal Synthetic Aperture Radar (SAR) imagery. Radar images are processed on the Google Earth Engine using the Backscatter algorithm method. The processing results show that an area of 87581.5 ha or 42.1% of the total area of Indramayu Regency has the potential and frequent occurrence of flooding.
Pemantauan Perubahan Deformasi Tanah Tahun 2014–2024 Berbasis DInSAR di Kecamatan Cisarua Amaanah, Annisa; Sulastri, Ai; Alfarezy, Alif; Pitaloka, Ghea Redana; Anam, Khairul; Aliyan, Silmi Afina
Journal of Geographical Sciences and Education Vol 3 No 3 (2025): Journal of Geographical Sciences and Education
Publisher : PT. Pubsains Nur Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69606/geography.v3i03.304

Abstract

Cisarua District, situated on the Lembang Fault line, has a high risk due to its proximity to densely populated settlements and its potential for large-magnitude earthquakes. This study aims to analyze the deformation of the Lembang Fault in Cisarua District from 2014 to 2024 using Sentinel-1A and TerraSAR-X imagery data, as well as Digital Terrain Model (DTM) analysis from an Unmanned Aerial Vehicle, employing the high-resolution Differential Interferometric SAR (DInSAR) method. The deformation levels vary from low to high, with a dominance of moderate deformation levels. High deformation was identified on the north and northeast sides, adjacent to the active tectonic zone. The DTM analysis revealed a steep topographic gradient with an elevation of 975.9–1395 masl. The combination of deformation and steep topography indicates a significant risk of landslides. The results of this study are expected to assist in disaster mitigation in the Cisarua District due to the deformation of the Lembang Fault.
KARAKTERISASI LAPISAN BAWAH PERMUKAAN LERENG HASIL PERGERAKAN SESAR LEMBANG MENGGUNAKAN ELECTRICAL RESISTIVITY TOMOGRAPHY PADA SAG POND MURIL Aliyan, Silmi Afina; Susanto, Kusnahadi; Pamungkas, Totok Doyo; Ihsan, Haikal Muhammad; Harja, Asep; Fitriani, Dini; Rosandi, Yudi
Jurnal Geosaintek Vol. 11 No. 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v11i2.2224

Abstract

A Analisis Fosil Foraminifera Formasi Wonosari dan Formasi Oyo Pembentuk Morfologi Karst Gunung Sewu Bagian Timur Aliyan, Silmi Afina; Christanti Agusta, Vera; Syaeful Bahri, Ayi
BULLET : Jurnal Multidisiplin Ilmu Vol. 2 No. 1 (2023): BULLET : Jurnal Multidisiplin Ilmu
Publisher : CV. Multi Kreasi Media

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

Abstract

Gunungsewu is one of the areas that has the second largest karst landscape in Indonesia. The diversity of morphology in the karst hill area makes this area interesting for research, especially by researchers in the field of geology. In the western region towards Gunung Kidul the formation of karst produces a morphology in the form of conical hills and in the eastern region towards Pacitan produces a morphology dominated by the formation of vertical caves. The Pacitan area is still limited in terms of information on the characteristics of the limestones that make it up, including the fossils that make up the limestones in this area. This paper describes the diversity of foraminifera fossils that make up the Wonosari and Oyo formations. Comparison of samples from the two formations, both planktonic and benthic fossils, shows the age and depositional environment of these two formations. The diversity of foraminifera fossils found in these two formations provides a new perspective on the age order in the Gunungsewu karst area. The presence of abundant Groborotalia mayeri fossils in both formations, which are well preserved, indicates that the Pacitan karst area was formed in the Middle Miocene. Meanwhile, the presence of benthic fossils indicates a deep littoral to neritic depositional environment from the Wonosari Formation and the Oyo Formation
Co-Authors Alfarezy, Alif Amaanah, Annisa Anam, M. Khairul ANNISA JOVIANI ASTARI Asep Harja, Asep Ayi Syaeful Bahri, Ayi Christanti Agusta, Vera Dini Fitriani, Dini Enok Maryani Firdaus, Rival Akbar Himayah, Shafira Ihsan, Haikal Muhammad Kusnahadi Susanto Lili Somantri Nulhakim, Diki Lukman Pamungkas, Totok Doyo Pitaloka, Ghea Redana Ramadhan, Zidan Ridwana, Riki Salma, Ghina Yusriyyah Sulastri, Ai Yudi Rosandi