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Amalia Putri, Amalia
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Journal : JOIV : International Journal on Informatics Visualization

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Vulnerability Liquefaction Mapping in Padang City Based on Cloud Computing Using Optical Satellite Imagery Data Razi, Pakhrur; Putri, Amalia; Sri Sumantyo, Josaphat Tetuko; Akmam, -
JOIV : International Journal on Informatics Visualization Vol 8, No 3-2 (2024): IT for Global Goals: Building a Sustainable Tomorrow
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.3-2.3480

Abstract

Liquefaction is a significant geological hazard in earthquake-prone locations like Padang City, Indonesia. The phenomenon happens when saturated soil loses strength owing to seismic shaking, resulting in substantial infrastructure damage. Accurate identification of sensitive locations is critical to catastrophe mitigation. This study aims to map water distribution using optical satellite data and estimate its importance as a crucial element in determining liquefaction vulnerability. The Normalized Difference Water Index (NDWI) was used to assess water and vegetation indexes, taking advantage of its sensitivity to water content in varied land surfaces. We recommended using the NIR (near-infrared) and SWIR (short wave infrared) bands with 832.8 nm and 2202.4 nm, respectively, which are sensitive to soil water content. High-resolution satellite data were used to create NDWI maps, highlighting locations with high water saturation. These findings were combined with geological and seismic data to identify liquefaction-prone zones. The study found that locations with high water content, as measured by NDWI, are highly associated with greater liquefaction susceptibility. The findings highlight the importance of water distribution in determining soil behavior during seismic occurrences. This study highlights the value of NDWI as a low-cost and efficient tool for measuring liquefaction vulnerability at the regional level. The technique offers insights into Padang City's urban planning, catastrophe risk reduction, and community preparedness. By identifying high-risk zones, the study aids in making informed decisions to reduce the impact of future earthquakes. Most of the water content change occurred along the coastal line and in the low-lying areas of Koto Tanggah and North Padang sub-districts. The model can be used in other places with similar geological challenges, providing a scalable solution for liquefaction risk assessment.
Co-Authors Afrini, Delsi Agung Laksono S, Moch Agus Riyanto Aida, Nurul Zia Aisyah Aisyah Akmam Akmam Amin, Nurdin Anief, Raifa Praharsa Aries Dwi Indriyanti, Aries Dwi Aristanti Widyaningsih Arrahmah, Tazkia Syifa Asif Faroqi Aswin Nur Saputra Aulia, Hana Awaliah, Siti Azizah, Khifayatul Azzahra, Nabiela Basir, Mochamad Abdul Devianti Sagita, Novaliana Dinna Rakhmina, Dinna Dwi C, Alya Eliesti, Fredrika Eriawati Eriawati Ernawati Ernawati Fitri, Anindo Saka Garnadi Jafar, Garnadi H. Haitami Hamdani, Riky Harissatria, Harissatria Hasibuan, M Fauzi Hasni, Erna Hatta, Isnur Hayati, Nor Ida Farida Adi Prawira Irmawanti, Jukiana Putri Ita, Ita Jannah, Juli Nur Josaphat Tetuko Sri Sumantyo Khitmatyar, Ridha Faatihah Kusumah, Dwi Jaya Latifah Sukmawati Yuniar Mahran A, Ghani Maliah, Nur Muhammad Husein Maruapey Mursidin . Nelvi, Yusmi Nina Yusnita Yamin Nur Apandi, R Nelly Pakhrur Razi Porosi, Arini Nadin Litsyawardani Pranata, Alfiansyah Adi Putri, Elita Amanda Putri, Renindra Atsilah Ramadhani, Shakila Reza Pahlevi, Muhamad Robo, Salahudin Romadhoni, Moh raihan Rosihan Adhani, Rosihan Rosyana, Nasywa Rusli, Nurfadila Safitri, Rabia Rahma Shofyan, Hidayatus Sri Yuniarsih Tini Elyn Herlina Tri Putri, Deby Kania Tuti Karyani Usman, Ernawati Wahdah Norsiah, Wahdah Wahyuni, Ni'mah Wati, Seftin Fitri Ana Yora, Muharama Yosa Fiandra Yulia Nur Hasanah Zamhari, Ahmad