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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).
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Articles 5 Documents
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Search results for , issue "Vol 6, No 2 (2023): Edisi November" : 5 Documents clear
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 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.
KERENTANAN SOSIAL TERHADAP BAHAYA LONGSOR DI KECAMATAN GIRIMULYO, KULON PROGO Riasasi, Widiyana; Saputra, Ridho Abdhe; Wahyuni, Desri
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.v6i2.2463

Abstract

Landslide is one of the hazards that threatens and has the potential to cause material losses and even fatalities. In 2021, one-third of the disasters in Indonesia are landslides. Landslides are caused by physical factors and human activities. Vulnerability measurement is needed to calculate disaster risk. Geographic Information Systems (GIS) plays a significant role in disaster management because it can provide a spatial and mathematical picture. This study aims to assess the level of vulnerability of society in the social sector to the threat of landslides in Kecamatan Girimulyo, Kulon Progo Regency, Special Region of Yogyakarta Province, which is analyzed spatially. The measurement of social vulnerability follows the guidelines issued by the National Disaster Management Agency using parameters of population density and vulnerable groups. The study area covers four subdistricts, namely Purwosari, Pendowoharjo, Jatimulyo, and Giripurwo. Kecamatan Girimulyo is located in an area dominated by hills and mountains, reaching an altitude of 500 meters above sea level. Data were obtained from the Girimulyo sub-district statistics center and the Geospatial Information Agency. Scoring and weighting methods are used to assess each parameter in order to obtain an index of social vulnerability to landslide threats. The results of the calculation of the population density parameter in Kecamatan Girimulyo show two classes, low and middle. The sex ratio measurement shows that the study area is included in the low class, the vulnerability dependency ratio is included in the middle class, and the classification of the disability ratio is included in the low class. The similarity of the study areas for each parameter indicates that the characteristics of the population are relatively the same or homogeneous. The social vulnerability index in Kecamatan Girimulyo is included in the low category. This indicates that the people of Kecamatan Girimulyo are socially prepared in the event of a landslide.
ZONASI SPASIAL SMA NEGERI DALAM PENERIMAAN SISWA BARU DI ZONA D, KABUPATEN KUNINGAN Tusam, Mohamad; Ismail, Jalu Rafli; Sugandi, Dede
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.v6i2.2453

Abstract

The establishment of zoning for Public High Schools in Zone D of Kuningan Regency is determined by the government, with a total of 4 schools designated for this purpose. Meanwhile, data from Dapodik indicates the presence of 22 junior high schools scattered within this zone. This number does not include the count of MTs (Madrasah Tsanawiyah) under the Ministry of Religious Affairs. This situation highlights the limited capacity of Public High Schools. On the other hand, there is no clear basis for dividing the geographical areas among the schools to accommodate new students within the zone. Consequently, there is a potential for imbalance among Public High Schools in accepting new students. The research aims to determine the distribution and service areas, as well as the zoning of Public High Schools in Zone D of Kuningan Regency. Geographic Information System (GIS) methods include overlay analysis used for the distribution analysis and zoning of new student admissions. Thiessen polygon analysis is employed for service area analysis, and remote sensing techniques with a supervised classification approach are used to analyze land distribution. The results show that the distribution of Public High Schools in Zone D extends towards the west, towards the city center of Kuningan Regency, and is limited in the eastern direction, towards the border of Central Java Province. SMA Negeri 1 Cibingbin has the largest service area, covering 12,534 ha, including 6,998 ha in the Cibingbin subdistrict, 1,907 ha in Cimahi, 485 ha in Karangkancana, 3,143 hectares in Cibeureum, and a residential area of 351 ha.

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