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All Journal Jurnal Planologi Sultan Agung Jurnal Wilayah dan Lingkungan J SIG (Jurnal Sains Informasi Geografi)
Fahmi, Syahrial
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Engineering Environmental Science Social Sciences Transportation Other

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Utilization of Multitemporal Landsat Images for Analysis Urban Heat Island Based on Google Earth Engine in Cimahi City Fahmi, Syahrial; Wahyudi, Diki; Putra, Rayana Estu
Jurnal Planologi Vol 21, No 1 (2024): April 2024
Publisher : Universitas Islam Sultan Agung Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jpsa.v21i1.32304

Abstract

Cimahi City is physically part of the Bandung-Cimahi core city conurbation of the system of cities in the Bandung City Basin Region so has high development activity. This condition causes an increase in the surface temperature of Cimahi City, especially in the downtown area and triggers the Urban heat island phenomenon. This research was conducted to map multi temporal spatial changes in the vegetation index (MSAVI) and land surface temperature (LST) in Cimahi City in 2015, 2019 and 2023 and to analyze their relationship to the phenomenon and the widespread distribution of urban heat island using Landsat 8 imagery by integrating cloud techniques. computing Google Earth Engine. The results of surface temperature (LST) were correlated with vegetation density (MSAVI) using a simple regression test to determine how much influence changes in vegetation density had on surface temperature (LST). The distribution of urban heat islands was obtained from the classification of LST processing with urban heat island threshold values. The results showed that there was an increase in the distribution area of the urban heat island phenomenon with a total area of urban heat island increasing by 1319.94 Ha in 2015, 3389.04 Ha in 2019, and 3634.04 Ha in 2023. The areas that are dominated by urban impacts The heat island occurred in South Cimahi District with an area affected of 1440.43 Ha.
ANALISIS HUBUNGAN PERKEMBANGAN KAWASAN TERBANGUN DAN LAND SURFACE TEMPERATURE TERHADAP ENVIRONMENTAL CRITICALITY INDEX DI KOTA BANDUNG MENGGUNAKAN TEKNOLOGI PENGINDERAAN JAUH Fahmi, Syahrial; Wahyudi, Diki; Arif, Muhammad Fajri
Jurnal Wilayah dan Lingkungan Vol 12, No 3 (2024): Desember 2024
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jwl.12.3.307-320

Abstract

Kota Bandung merupakan salah satu kota dengan pertumbuhan pesat di Jawa Barat. Hal itu ditandai dengan peningkatan jumlah penduduk dan pembangunan infrastruktur. Masifnya pembangunan infrastruktur menyebabkan perubahan alih fungsi lahan dari kawasan bervegetasi menjadi kawasan terbangun yang berakibat pada penurunan indeks kualitas lingkungan. Penelitian ini bertujuan menganalisis kondisi kawasan terbangun, suhu permukaan, dan tingkat kekritisan lingkungan menggunakan Environmental Criticality Index (ECI) dengan variabel EBBI dan LST berbasis data Landsat-8 OLI/TIRS tahun 2013 dan 2023. Secara khusus, penelitian ini juga menganalisis hubungan antara EBBI dan LST terhadap Environmental Criticality Index. Hasil penelitian menunjukkan terjadi peningkatan luas kawasan terbangun sebesar 490,2 ha dari 9.674 Ha di tahun 2013 menjadi sebesar 10.164,2 Ha di tahun 2023. Sementara itu, hasil kondisi suhu permukaan mengalami peningkatan luas area yang didominasi rentang suhu moderate (22,2°C – 25,1°C) dan terjadi peningkatan luas area tingkat kekritisan lingkungan yang signifikan untuk kategori tinggi dari 461,5 Ha di tahun 2013 menjadi sebesar 5402,9 Ha di tahun 2023. Adapun wilayah di Kota Bandung dengan tingkat kategori kekritisan lingkungan tinggi paling luas berada di Kecamatan Babakan Ciparay dengan luas area sebesar 386,8 Ha di tahun 2023. Masing-masing variabel EBBI dan LST memiliki korelasi hubungan terhadap tingkat kekritisan lingkungan dan nilai korelasi hubungan paling tinggi, yaitu variabel EBBI terhadap tingkat kekritisan lingkungan sebesar 99,4% di tahun 2013 dan 97,6% di tahun 2023. Hasil analisis tingkat kekritisan lingkungan di Kota Bandung diharapkan dapat direkomendasikan sebagai salah satu data pelengkap dalam pengambilan kebijakan terkait pengembangan dan perencanaan kota.
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.
Co-Authors Arif Ismail Arif, Muhammad Fajri Karim, Rizal Aldian Lugina, Izma Maulana Ahmad Putra, Rayana Estu WAHYUDI, DIKI