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Journal : Geosfera Indonesia

Analysis of Mangrove Density Levels Change Based on Cloud Computing on Abrasion Area in the Coast of Semarang City Sidiq, Wahid Akhsin Budi Nur; Sanjoto, Tjaturahono Budi; Nayan, Nasir; Sriyanto; Fariz, Trida Ridho
Geosfera Indonesia Vol. 10 No. 1 (2025): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v10i1.48079

Abstract

The coastal areas of Semarang City have experienced land conversion due to development activities that threaten mangrove sustainability in recent years. The urgency of this research is the need to monitor mangrove density levels to be used as input in its management. The purpose of this study is to analyze changes in mangrove density levels and the occurrence of abrasion in time series using the Google Earth Engine cloud computing model. The research method used visual interpretation and spectral transformation of NDVI and MNDWI to identify spatial distribution, mangrove density and abrasion. The results showed that there was a significant decrease in mangrove area in 2019-2023 with an area of 111.74 hectares. Furthermore, the level of mangrove density is quite dynamic, especially for high density with a decrease in area from 2019 - 2023 with an area of 260.25 hectares, besides that the decline in high density mangroves also occurred in 2015 - 2023 with a decrease in area of 38.73 hectares. Abrasion in the research location was identified in 2 coastal villages, namely Mangunharjo Village with abrasion along 0.88 km (2015 - 2023) and Tugurejo Village with abrasion along 1.04 km, where both areas also experienced a decrease in mangrove area at a high-density level. In conlusion, there has been a decrease in the area and density of mangroves in the study site, one of which has an impact on abrasion.
Co-Authors A.A. Ketut Agung Cahyawan W Abda Abda Achmad Zurohman, Achmad Ahmad Yazidun Nafi, Ahmad Yazidun Aji, Halim Sukma Ananto Aji, Ananto Andi Irwan Benardi, Andi Irwan Andin Irsadi Anik Rahmawati, Anik Apik Budi Santoso Aprianto, Widhi Kurniawan Arifien, Moch Ariyani Indrayati Bintang Wicaksana, Muhammad Guruh Cahyo Budi Utomo Dewi Liesnoor Setyowati Djoko Widodo Dwi Jatmiko, Dwi Eko Adi Saputro Erni Suharini Etty Soesilowati Eva Banowati Fajri, Zulfikar Ardiansyah Fithri, Aulia Syafira Hairumini, Hairumini Handayani, Windari Kurnia Heri Tjahjono Heristama, Andika Rizqy Irnawati, Isnaini Rahmatia Irnawati, Isnaini Rahmatia Juhadi Juhadi Karamina, Sharfina Kusuma, Muhammad Brilliant Cahya Laelia Nurpratiwiningsih, Laelia Lailiiyah, Nur Luh Putu Ratna Sundari Mahati, Retno Salaras Moch. Arifien, Moch. Mochammad Imron Awalludin Mukhlis Iskandar, Mukhlis Natalia Pitricia, Natalia Nayan, Nasir Nora Idiawati Novi Ike Susantl, Novi Ike Nuansa Chandra Lintang, Nuansa Chandra Nur Faidah, Rini Tri Anjani Nur Puji Lestari, Nur Puji P, Putri Inmas P, Putri Inmas Pradika Adi Wijayanto Pramawidya, Leksahawa Pramawidya, Leksahawa Prasetyo, Selamet Dwi Puji Hardati Putri, Nurrahim Adhadina Eka Putri, Nurrahim Adhadina Eka Ratna Dwi Setyowati, Ratna Dwi Rizkyanto, Irfan Rusdarti - Saptono Putro Sari, Ruhaniah Atma Sari, Ruhaniah Atma Satya Budi Nugraha Satyanta Parman Sektyambodo, Bagus Mulia Setyono, Bagus Sidiq , Wahid Akhsin Budi Nur Sinta Selvi Windrianingsih, Sinta Selvi Siska, Sunia Elanda Sriyanto Sriyanto Sriyanto Sriyono Sriyono Sunarko Sunarko Suroso Suroso Sutardji Sutardji Suwito Eko Pramono Thriwaty Arsal Tri Marhaeni Pudji Astuti Trida Ridho Fariz Vina Nurul Husna Wahid Akhsin Budi Nur Sidiq, Wahid Akhsin Budi Nur Wahyu Setyaningsih Wawan Setiawan Werdhiningsih, Chlorella Wiluyana, Ageng Ihsani Winarni, Erin Dian Wulansari, Ainun Hinggis Nur