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INDONESIA
J SIG (Jurnal Sains Informasi Geografi)
Published by Universitas Muhammadiyah Gorontalo
ISSN : -     EISSN : 26141671     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science
Jurnal ini terbit 2 (dua) kali dalam setahun yaitu pada bulan Mei dan November (2 Nomor dalam 1 Volume) yang pada setiap terbitan berisi maksimal 6 artikel/paper. Publikasi dalam jurnal ini menggunakan Bahasa Indonesia meski juga diperbolehkan dengan menggunakan Bahasa Inggris (english).
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 5, No 2 (2022): Edisi November" : 5 Documents clear
ANALISIS TIPE BATUAN DASAR PEMBENTUK NIKEL LATERIT PADA BLOCK X KABUPATEN BANGGAI, PROVINSI SULAWESI TENGAH Novariani Payuyu; Aang Panji Permana; Ronal Hutagalung
Jurnal Sains Informasi Geografi (J SIG) Vol 5, No 2 (2022): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v5i2.1551

Abstract

Nickel is an important strategic resource and has become a key material for the development of modern aerospace and defense industries, infrastructure and technology. The research area is located in block X, Banggai Regency, Central Sulawesi. The purpose of this study is to analyze the type of bedrock using petrographic analysis based on the research location. The research method used is direct observation in the field and laboratory analysis. The morphology of the research site belongs to the geomorphological unit of denudational origin, divided into two topography, namely denudational hills with gentle slopes (4-8° or 7-15%) and denudational hills with moderate-sloping slopes (8-16° or 15-30%). The bedrock that has been successfully analyzed at the research site is a cretaceous serpentinized peridotite unit.
PEMETAAN JALUR EVAKUASI TSUNAMI DI KOTA BENGKULU BERBASIS ARCGIS HUB Yehezkiel Santoso; Hanna Prillysca Chernovita
Jurnal Sains Informasi Geografi (J SIG) Vol 5, No 2 (2022): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v5i2.1706

Abstract

Bengkulu city is an area facing the Indo-Australian tectonic plate, resulting in frequent earthquakes above 5 on the Richter scale and triggering the potential for a tsunami. This research was conducted in 9 sub-districts of Bengkulu City and aimed to design a geographic information system for pre-disaster mitigation that provides a visual form of tsunami exposure and allows users to carry out analysis independently route point locations to evacuation sites. The method used is overlaying and scoring the map of distance from the coastline, distance from the river, elevation and slope, so as to obtain an exposure map that can be used as a reference in conducting network analyst closet facility. The data that has been analyzed is then uploaded to ArcGIS Online to be customized and configured as WebGIS. The results showed that there were 7 sub-districts that had high levels of exposure and had routed 58 incident points to 17 temporary evacuation sites.
PEMANFAATAN CITRA SATELIT LANDSAT 8 UNTUK MEMETAKAN HUTAN MANGROVE WISATA BAHARI PANTAI KARANGANTU, TELUK BANTEN Kiran Aulia Putri; Willdan Aprizal Arifin; La Ode Alam Minsaris
Jurnal Sains Informasi Geografi (J SIG) Vol 5, No 2 (2022): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v5i2.1774

Abstract

Mangrove marine tourism is one of the tourism sectors involved in large and important projects in tourism development. The transformation of PPN Karangantu from a protected area to marine tourism has caused environmental damage. This continued focus on mass tourism has resulted in environmental damage and pollution of the mangrove area found in PPN Karangantu. The aim of the study was to calculate the area of mangrove forest, the accuracy value of mangrove density and changes in conditions due to the existence of the Karangantu Beach marine tourism area in the last 5 years. The research method uses a mixed method to identify mangrove areas by visually analyzing landsat 8 spectral values using the Google Earth Engine (GEE) platform and by image processing for 2018-2022. The results showed that in 2018 the area of mangrove land was 17.04 ha, which decreased drastically in 2019 to 6.28 ha due to an oil spill that was carried away from Karawang Waters. In 2020 it will be 10.6 ha, in 2021 it will be 9.56 ha and in 2022 it will be 7.32 ha. This decrease area is due to marine tourism activities which damage the mangrove ecosystem land and many visitors do not protect the ecosystem. The use of GEE can provide an overview of the capabilities of Landsat 8 satellite imagery in mapping the mangrove forests in Karangantu Beach.
PREDIKSI POLA ABRASI DALAM RANGKA MITIGASI BENCANA DI KECAMATAN GEROKGAK, KABUPATEN BULELENG, BALI I Gst Ngr Yoga Jayantara
Jurnal Sains Informasi Geografi (J SIG) Vol 5, No 2 (2022): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v5i2.1737

Abstract

Gerokgak Subdistrict has seen a significant change in coastline during the past 20 years, from 1997 to 2017, with the largest change being around 620.6 meters. Of the several factors that cause coastline changes, abrasion is one of the most detrimental factors. Change in coastline caused by abrasion can be categorized as disasters because it is destructive and detrimental, as it threatens ecosystems or buildings behind the coastline. Judging from the tendency of development in Gerokgak District that inclines towards the coast, abrasion could be a devastating disaster for most of the people of Gerokgak Subdistrict. Structures such as PLTU Celukan Bawang, hotels on the beach, temples on the beach, and fish ponds owned by the government and the community will become easy targets for abrasion. Previous research resulted in an analysis of shoreline change from shoreline extraction every five years over a 25-year period. There are 6 coastlines resulting from shoreline extraction in 1995-2020. In this study, the six samples of coastline data that have been obtained will be used to draw a general conclusion on abrasion pattern and then this abrasion pattern will be used to produce extrapolation of the abrasion pattern every five years for the next 10 years, namely 2025 and 2030. This study produced extrapolation calculations for 2025 and 2030 which were achieved using the linear regression method with the aim that a linear coastline pattern could be formed as a consideration for decision making for abrasion disaster mitigation policies that occurred in Gerokgak Subdistrict.
KAJIAN PENENTUAN PRIORITAS RUANG TERBUKA HIJAU BERDASARKAN FENOMENA URBAN HEAT ISLAND DI KOTA CIREBON Irland Fardani; Mohamad Rizalby Yosliansyah
Jurnal Sains Informasi Geografi (J SIG) Vol 5, No 2 (2022): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v5i2.1708

Abstract

Urban Heat Island (UHI) is characterized by an increase in surface temperature that occurs in downtown areas which is higher than in sub-urban areas. Cirebon City in 2018 - 2023 years has an increased population growth rate of 2.9% per year and ± 55% of built-up land. Cirebon city also one of the 9 cities in West Java where there has been an increase in temperature where the UHI phenomenon occurred in 1989 – 2021 years with the downtown and sub-urban areas having a surface temperature difference of 3°C. So it is necessary to have a study regarding determining the priority of green open space reduce the effect of UHI in Cirebon City. The research methodology used is Landsat 8 image processing and with helping of a Geographic Information System (GIS) to determine priority green open space locations. The parameters used are vegetation index, population density and comfort index. The purpose of this study is to determine the priority locations in increasing the area of green open space to reduce the UHI effect based on the level of suitability of the Cirebon City Rencana Detil Tata Ruang (RDTR). The results of the study show that areas that are not suitable according to the RDTR of Cirebon City are the top priority that needs to be done. The priority is reforestation covering an area of ± 2,481.22 ha around built-up land by modifying green open space in the form of implementing green infrastructure (GI).

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