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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 83 Documents
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PEMANFAATAN SISTEM INFORMASI GEOGRAFIS BERBASIS WEB (WEBGIS) UNTUK PEMETAAN ASET LAHAN DAN BANGUNAN POLITANI SAMARINDA Kurniadin, Nia; Prasetya, F. V. Astrolabe Sian; Hadi, Pravasta Kiko Setiawan; Feri, Wawan
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 1 (2023): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i1.1359

Abstract

Politeknik Pertanian Negeri Samarinda (Politani Samarinda) is one of the vocational colleges in East Kalimantan. Based on the Decree of the Governor of East Kalimantan No. 596/K.45/2020 dated January 21, 2020, the land area of the Politani Samarinda is 305.635 m2. The area of land and buildings on it are assets that need to be collected and mapped to make it easier to monitor, development, and maintain buildings as well as the use of all such buildings. The Web-Based Geographic Information System method is used. The purpose of this research is to create a WebGIS for land and building assets of the Politani Samarinda to facilitate monitoring, planning, maintenance, and use of all buildings. The geographic Information system is used to analyze the distribution and use of land and buildings which are then presented in the form of WebGIS. The research begins with a literature study on all immovable assets in the form of land and buildings belonging to the Politani Samarinda. Data consisting of spatial and non-spatial data on the boundaries of existing land and buildings are collected and processed using QGIS to obtain a map of the distribution of buildings and converted to GeoJSON format. WebGIS code is created and tested and uploaded to WebGIS hosting so that it can be accessed online. The output in this research is the existence of a Geographic Information System for the Politani Samarinda building assets that can be accessed online and can be used to facilitate monitoring, planning, maintenance, and use of all buildings.
KARAKTERISTIK ENDAPAN NIKEL LATERIT BLOK O DAERAH BUNTA, KABUPATEN BANGGAI Ghaneswara, Oka Arin; Permana, Aang Panji; Hutagalung, Ronal
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 1 (2023): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i1.2002

Abstract

The research area is in Block O Bunta Region, Banggai Regency. The research area includes areas with laterite nickel deposits in Central Sulawesi Province. Based on the Luwuk Sheet Geological Map, the Bunta area is included in the Ku Formation (Ultramafic Complex) composed of serpentinite, gabbro, basalt, and schist rocks. The aim of this study was to analyze the characteristics of laterite nickel deposits in Block O, Bunta Region, Banggai Regency. To achieve this goal, several research methods were carried out, namely field geological survey methods and laboratory analysis. The field geological survey includes detailed geological mapping and coring drilling data collection. The field geological survey includes observations of rocks and geomorphology of the study area. Meanwhile, laboratory analysis includes coring data analysis. The total drilling samples analyzed came from 40 drill points. The results and discussion show that the geomorphology of the study area is classified into denudational hill units. The lithology in the study area based on the analysis results is serpentinized peridotite. The characteristics of nickel laterite deposits in the study area consist of limonite and saprolite zones. The limote zone has a characteristic reddish brown color dominated by hematite minerals and yellowish brown dominated by goethith minerals. While the saprolite zone is dominated by a greenish-yellow color with its constituent minerals namely serpentine, goethith, silica.
ANALISIS SUHU PERMUKAAN LAUT SAWU TAHUN 2021 MENGGUNAKAN CITRA SENTINEL-3 Handoko, Eko Yuli; Syariz, Muhammad Aldila; Wicaksono, Krisna Wahyu
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 2 (2023): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i2.2403

Abstract

The eastern part of Indonesian Seas has a very unique characteristic as it is traversed by the Indonesian Through Flow (ITF). The ITF is a movement of water masses from the Pacific Ocean to the Indian Ocean, driven by the pressure differences between these two oceans. The movement of water masses and currents, along with the existence of monsoon winds that blow across the region throughout the year, impact the Sea Surface Temperature (SST) in Indonesia. The SST can be derived from satellite imagery such as MODIS and SeaWIFs images. This study utilized Sentinel-3 Sea and Land Surface Temperature data, with better spatial and temporal resolution than the two aforementioned images, to process the Sea Surface Temperature values. The research also investigated sea surface temperature values correlation with the movement and speed of winds occurring in Indonesia. The research results presented the monthly time-series distribution of sea surface temperature values in the Savu Sea for the year 2021. The analysis revealed that the lowest sea surface temperature values occurred in July, while the highest were recorded in December. The sea surface temperature values per month demonstrated an increase during the westerly monsoon from October to April, which corresponds to the rainy season in Indonesia. Conversely, during the easterly monsoon, the sea surface temperature values tended to be lower, resulting in the dry season due to decreased ocean evaporation. Furthermore, the study found a negative correlation between sea surface temperature values and wind speed, with a strong correlation coefficient of -0.5709.
DINAMIKA TERBENTUKNYA TANAH TIMBUL AKIBAT PASANG SURUT DI MUARA SUNGAI CIWULAN Fauzi, Aditia; Lestari, Indri; Hakiki, Nisa; Sutrisno, Tri; Swardana, Ardli
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 2 (2023): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i2.2281

Abstract

Coastal areas are border areas between land and sea areas. One of the phenomena that occurs in coastal areas is abrasion and sedimentation. Sedimentation results in the formation of raised soil in areas near the estuary. This research aims to identify the formation of emergent soil through continuous observation of Google Earth satellite images. The research was conducted at the mouth of the Ciwulan River, Karangnunggal District, Tasikmalaya Regency, West Java. The research was carried out in April – June 2023. The method used in this research was a comparison of each satellite each year. Based on observations of satellite imagery from year to year, it is observed that the volume of water in the Ciwulan River has increased, causing the area of emerging land to start to decrease from year to year in 2019, 2020, and 2021. The decrease in emerging land is due to abrasion at the mouth of the river, so the emerging land has disappeared because it was submerged by the high volume of river water.
ANALISIS KUANTITAS AIR TANAH BEBAS MENGGUNAKAN PENDEKATAN DEBIT DINAMIS DI KECAMATAN TEMON, KABUPATEN KULON PROGO, YOGYAKARTA Novianto, Arif; Sejati, Sadewa Purba
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 1 (2023): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i1.2385

Abstract

Groundwater in Temon District, Kulon Progo Regency, has the potential to experience pressure due to massive land use change. The quantity of groundwater in Temon District needs to be identified to determine the existing groundwater condition. The study was conducted to determine the amount of groundwater in the Temon District. The data used in the study include groundwater depth data, elevation data, groundwater level data, and data related to aquifer characteristics. Primary data were collected through field surveys. Secondary data are extracted through literature studies. Data analysis was carried out using the Darcy method. The results showed that the dynamic quantity of groundwater amounted to 4,996.3 m3/day. Factors affecting the active portion of groundwater include aquifer characteristics, groundwater depth, and groundwater hydraulic slope. Based on a comparison with the results of previous studies, it is known that there was a decrease in groundwater for five years (2016 to 2021) of 8,089,710 m3/year. The average reduction per year is 1,617,942 m3/year. Factors that influence the decrease in groundwater quantity are changes in land use and massive groundwater use.
ANALISIS POTENSI KETERSEDIAAN AIR TANAH SECARA SPASIAL UNTUK PEMENUHAN KEBUTUHAN AIR BAKU DI DAS RONTU Lugina, Izma Maulana Ahmad; Fahmi, Syahrial; Karim, Rizal Aldian; Ismail, Arif
J SIG (Jurnal Sains Informasi Geografi) Vol 6, No 2 (2023): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v6i2.2457

Abstract

Clean water supply is one of the strategic issues in Bima City which is of concern and is stated in the Bima City RPJMD. The main problem with providing clean water in Bima City is the crisis that occurs when the dry season arrives. Apart from that, if we follow the projected population growth of Bima City, the amount of raw water that is available and can be used as a source of clean water will not be able to meet the needs of the population in the future, so another alternative source is needed, namely by utilizing groundwater. This research aims to spatially see the groundwater potential in the Rontu watershed located in Bima City and measure projected water use needs in the Bima City area. The method used is spatial analysis with quantitative methods Multi Criteria Evaluation (MCE), Groundwater Potential Index (GWPI), and the Thornthwaite method for determining areas that have the potential to have groundwater. The research uses the help of a geographic information system (GIS) and remote sensing data to produce a groundwater potential zone map. Based on the results of the groundwater potential zoning map created, it can be seen that the Rontu watershed area as a whole and Bima City tend to have very high potential for groundwater storage and supply. This research also provides an overview of water use in both the domestic and non-domestic sectors in the Rontu Watershed area which includes Bima City and calculates the remaining water reserves from the results of water use and water supply obtained in the Rontu Watershed area, so that it can provide recommendations. for future water supply.
Efektifitas Identifikasi Perubahan Tutupan Mangrove Menggunakan Citra Landsat-8 di Kecamatan Labuhan Maringgai, Lampung Timur Pratama, Annisa Tias; Prasetio, Wiji; Prasetyo, Budhi Agung
J SIG (Jurnal Sains Informasi Geografi) Vol 8, No 1 (2025): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v8i1.3067

Abstract

Mangrove forests play a crucial role in protecting coastlines, reducing CO2, and serving as natural resources. However, the growth of mangroves continues to decline due to human activities, necessitating studies to monitor mangrove coverage both directly and indirectly. This research aims to assess the effectiveness of identifying changes in mangrove coverage in Labuhan Maringgai District, East Lampung. The data used is Landsat-8 satellite imagery from the years 2019-2023. The method employed involves NDVI (Normalized Difference Vegetation Index) and EVI (Enhanced Vegetation Index) algorithms followed by random forest classification to determine mangrove and non-mangrove areas. Accuracy testing uses a confusion matrix with overall accuracy values and Kappa coefficient. In addition, the t-test was used to determine the effectiveness between the NDVI and EVI algorithms. The analysis results indicate a change in the area of mangrove coverage with annual increases in Labuhan Maringgai District. Sequentially from 2019 to 2023, using the NDVI algorithm showed values of 19%, 6%, 13%, and 7%, while the EVI algorithm showed values of 25%, 5%, 11%, and 8%. The accuracy test results produced have the highest average effectiveness in the NDVI algorithm with an overall accuracy of 95.4% and a Kappa coefficient of 0.87 compared to the EVI algorithm with an overall accuracy of 91.4% and a Kappa coefficient of 0.82. On the other hand t-test results indicate that utilize of the NDVI algorithm is more effective than EVI, with the correction value for the NDVI algorithm being 0.0077 compared to the correction value for the EVI algorithm being 0.1664.
PENGARUH PERUBAHAN LAHAN SAWAH TERHADAP PRODUKSI PADI DI KABUPATEN CIANJUR, JAWA BARAT (2013-2023) Wulandari, Dwi Putri; Handawati, Rayuna; Zid, Muhammad
J SIG (Jurnal Sains Informasi Geografi) Vol 8, No 1 (2025): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v8i1.3627

Abstract

The decrease in the area of rice fields in Cianjur Regency over the last ten years was 20,687.15 hectares (ha), or 5.73%. This decrease in rice fields is inversely proportional to the increase in residential and industrial land. The area of residential land increased by 33,375.43 ha (9.24%), while industrial land expanded by 3,006.45 ha (0.83%). The reduction in rice field area was accompanied by a decline in rice production of 438,984 tons. This raises the issue of the impact of changes in rice field area on rice production. The purpose of this study was to determine the effect of changes in rice field area on rice production in Cianjur Regency from 2013 to 2023. The research problem was addressed using a quantitative geographic method with simple linear regression analysis. Data analysis utilized Landsat 8 imagery with a supervised classification technique, focusing on two variables: changes in rice field area (x) and rice production (y). The findings concluded that 67.2% of the decline in rice production was due to the reduction in rice field area, while 32.8% was influenced by other factors such as rainfall, altitude, irrigation, and fertilizer use. In the significance test analysis, a value of 1.81 > 1.00000 was obtained, with a research accuracy of 90.9%, indicating that the hypothesis was accepted. The regression analysis yielded the equation Y = -7.6 + 7.9(x) , meaning that rice production decreases by 7.6 tons for every 1 ha  reduction in rice field area.
Analisis Hubungan Suhu Permukaan Laut dan Variabilitas Curah Hujan di Kabupaten Paniai dan Manokwari Faqi, Ekky Amiral; Menggala, Akhdori Alfa
J SIG (Jurnal Sains Informasi Geografi) Vol 8, No 1 (2025): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v8i1.3494

Abstract

One of climate parameter is rainfall. Rainfall variations is influenced by many factors one of them is Sea Surface Temperature (SST). SST has a significant role in the occurrence of rain. This study aims to analyze the effect of SST to rainfall variations in the Manokwari region which represents a coastal area with a monsoonal rain pattern and Paniai Regency which represents a mountainous area with an equatorial rain pattern. In this study, an analytical method was used with rainfall data with 2017-2021 period from the BMKG Station in Manokwari and Paniai, as well as an analysis of the Nino 3.4 Sea Surface Temperature anomaly reanalysis data from NOAA. The results showed that the rainfall anomaly and SST anomaly in Paniai had an inverse relationship. Rainfall anomaly and SST anomaly in Manokwari generally have a directly proportional relationship. Reviewed from the value of the correlation coefficient, a significant relationship between the SST anomaly and the rainfall anomaly in Paniai and in Manokwari occurs in certain months.
KESESUAIAN LAHAN INDUSTRI DENGAN SPATIAL MULTI-CRITERIA EVALUATION (SMCE) DAN FUZZY LOGIC DI KABUPATEN TABANAN, BALI Yoga Dwi Putra, I Kadek; Wibowo, Adi
J SIG (Jurnal Sains Informasi Geografi) Vol 8, No 1 (2025): Edisi Mei
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v8i1.4043

Abstract

Bali’s heavy reliance on tourism makes its economy vulnerable to external shocks, such as pandemics or natural disasters. Economic diversification through sustainable industrial development is a strategic effort to enhance Bali’s economic resilience. This study aims to assess industrial land suitability in Tabanan Regency using the Spatial Multi-Criteria Evaluation (SMCE) method and fuzzy logic within a Geographic Information System (GIS) framework. Five key criteria were evaluated: proximity to roads, rivers, settlements, slope gradient, and conservation areas. Results indicate that most of the region is classified as marginally suitable (51.84%) or unsuitable (21.36%), while 26.42% is suitable and only 0.38% is highly suitable for industrial development. One recommended area is Cau Belayu Village in Marga District, which meets technical standards and offers good accessibility. However, further assessments of ecological and social impacts are necessary. This study provides a scientific foundation for sustainable spatial planning in Tabanan, aligned with the Tri Hita Karana philosophy.

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