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Identifikasi Perubahan Penggunaan Lahan Pada Sub DAS Karang Mumus Provinsi Kalimantan Timur Miftahul Jannah; Feri Fadlin; Dyah Widyasasi; Suparjo Suparjo
Journal of Geomatics Engineering, Technology, and Science Vol. 2 No. 1 (2023): September 2023
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v2i1.33

This research is motivated by the growth of population and its activities. The increasing population and the more intensive activities of people in a place have an impact on changes in land use. One thing shown is changes in the Karang Mumus River Watershed (DAS) sub-area in Samarinda. Samarinda is one of the cities that is developing with a population that is increasing every day and has a variety of urban activities which are not small, causing the need for space is also not small. This research aims to identify land use and land use changes in the Karang Mumus sub-watershed. The method used in this research is the Geographic Information System (GIS) method, to process and analyze data so as to obtain information, types of land cover, area and changes in land use in the Karang Mumus sub-watershed in 1990, 2000, 2011 and 2020. Results from this research, over the past three decades, there has been a significant decrease in the area of dry land forests, while residential areas and the mining sector have seen rapid growth. The loss of dry land forests potentially disrupts ecological functions, including carbon absorption and serving as habitats for various species, which can impact ecosystem health and biodiversity. The expansion of residential areas and mining without proper management and planning poses environmental risks, including erosion, pollution, and potential degradation of water resources and air quality.

Pemetaan Deforestasi dan Perubahan Tutupan Lahan di Wilayah Pertambangan Nikel Kecamatan Pomalaa Memanfaatkan Teknologi Penginderaan Jauh Andi Baso Sofyan A. P.; Feri Fadlin; Dawamul Arifin; Radik Khairil Insanu; Ahmad Aris Mundir Sutaji
Journal of Geomatics Engineering, Technology, and Science Vol. 2 No. 2 (2024): March 2024
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v2i2.35

Pomalaa District, Kolaka Regency, Southeast Sulawesi Province, is one of the regions in Indonesia which has quite large mining potential, especially for nickel commodities. The stages of nickel mining activities consist of land clearing activities which can cause deforestation or reduction of forest area. The aim of this research is to map deforestation and land cover changes that occur in the nickel mining area of Pomalaa District. It is expected that the results of this research can be used as consideration in formulating policies for efforts to rehabilitate land damaged by mining activities in Pomalaa District, Kolaka Regency, Southeast Sulawesi Province. The method used in this research is multi-time remote sensing image data analysis. The data used are Landsat 8 images in 2014, 2018 and 2023 to analyze changes in forest areas and changes in land cover at the research location during that time period. The results of the research show that there has been a decrease in the area of forest and vegetated areas, that is in 2014 the area reached 17,207.9 hectares to 16,178.4 hectares in 2018 and 16,110.1 hectares in 2023. Meanwhile, the mine excavation area has increased from 1,792.3 hectares in 2014 to 2,005.4 hectares in 2023. Likewise, the area of built-up land and open land has increased from 3,509.3 hectares in 2014 to 4,370.7 hectares in 2023.

Identifikasi Perubahan Penggunaan Lahan pada Sub DAS Karang Mumus Provinsi Kalimantan Timur Jannah, Miftahul; Fadlin, Feri; Widyasasi, Dyah; Suparjo, Suparjo
Journal of Geomatics Engineering, Technology, and Science Vol. 2 No. 1 (2023): September 2023
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v2i1.33

This research is motivated by the growth of population and its activities. The increasing population and the more intensive activities of people in a place have an impact on changes in land use. One thing shown is changes in the Karang Mumus River Watershed (DAS) sub-area in Samarinda. Samarinda is one of the cities that is developing with a population that is increasing every day and has a variety of urban activities which are not small, causing the need for space is also not small. This research aims to identify land use and land use changes in the Karang Mumus sub-watershed. The method used in this research is the Geographic Information System (GIS) method, to process and analyze data so as to obtain information, types of land cover, area and changes in land use in the Karang Mumus sub-watershed in 1990, 2000, 2011 and 2020. Results from this research, over the past three decades, there has been a significant decrease in the area of dry land forests, while residential areas and the mining sector have seen rapid growth. The loss of dry land forests potentially disrupts ecological functions, including carbon absorption and serving as habitats for various species, which can impact ecosystem health and biodiversity. The expansion of residential areas and mining without proper management and planning poses environmental risks, including erosion, pollution, and potential degradation of water resources and air quality.

Pemetaan Deforestasi dan Perubahan Tutupan Lahan di Wilayah Pertambangan Nikel Kecamatan Pomalaa Memanfaatkan Teknologi Penginderaan Jauh Sofyan A. P., Andi Baso; Fadlin, Feri; Arifin, Dawamul; Insanu, Radik Khairil; Sutaji, Ahmad Aris Mundir
Journal of Geomatics Engineering, Technology, and Science Vol. 2 No. 2 (2024): March 2024
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v2i2.35

Pomalaa District, Kolaka Regency, Southeast Sulawesi Province, is one of the regions in Indonesia which has quite large mining potential, especially for nickel commodities. The stages of nickel mining activities consist of land clearing activities which can cause deforestation or reduction of forest area. The aim of this research is to map deforestation and land cover changes that occur in the nickel mining area of Pomalaa District. It is expected that the results of this research can be used as consideration in formulating policies for efforts to rehabilitate land damaged by mining activities in Pomalaa District, Kolaka Regency, Southeast Sulawesi Province. The method used in this research is multi-time remote sensing image data analysis. The data used are Landsat 8 images in 2014, 2018 and 2023 to analyze changes in forest areas and changes in land cover at the research location during that time period. The results of the research show that there has been a decrease in the area of forest and vegetated areas, that is in 2014 the area reached 17,207.9 hectares to 16,178.4 hectares in 2018 and 16,110.1 hectares in 2023. Meanwhile, the mine excavation area has increased from 1,792.3 hectares in 2014 to 2,005.4 hectares in 2023. Likewise, the area of built-up land and open land has increased from 3,509.3 hectares in 2014 to 4,370.7 hectares in 2023.

Perbandingan Hasil Pengolahan Data GPS Geodetik Menggunakan Aplikasi Compass Solution dan Aplikasi Trimble Business Center Arifin, Dawamul; Herliana, Nadira Ayu; Fadlin, Feri; Insanu, Radik Khairil
Journal of Geomatics Engineering, Technology, and Science Vol. 2 No. 2 (2024): March 2024
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v2i2.37

The background of this research is as an effort to determine the level of accuracy in the Compass Solution and Trimble Business Center software. So that you can find software with a better level of accuracy. The purpose of this study is to find out the results of processing static observation data using Compass Solution and Trimble Business Center software to obtain a report on the processing results in the form of point coordinate values. The methods used in measurement activities are absolute and differential methods which are then processed using Compas Solution Software and Trimble Business Center software. The results obtained in this study are the availability of the difference in coordinates X, Y and Z when processing using Compass Solution and Trimble Business Center software. The results of differential method data processing using the Trimbel Business Center application (strategy 3) are closest to the fixed BM coordinate values that have been determined, namely with an average difference in the X value of 7.75 mm, Y value of 17.5 mm, and the average difference The Z value is 266.25 mm. Meanwhile, the results of absolute method data processing using the Compass Solution application (strategy 2) are closest to the fixed BM coordinate values, namely with an average difference in the X value of 1,129 mm, Y value of 229.25 mm, and an average difference in Z value is 1,131 mm.

Identifikasi Deforestasi di Provinsi Kalimantan Timur Tahun 1990 dan 2020 Menggunakan Sistem Informasi Geografis Rahmawati, Andriani Nadia; Fadlin, Feri; Suparjo, Suparjo; Kurniadin, Nia
Journal of Geomatics Engineering, Technology, and Science Vol. 3 No. 1 (2024): September 2024
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v3i1.41

This research is motivated by the abundance of resources available in Indonesia's forests. However, it is undeniable that the forest resources in Indonesia have a promising economic function, particularly in the form of timber or tree trunks that hold economic value, leading to timber exploitation that can result in deforestation. One example of this is the deforestation occurring in East Kalimantan Province, where both production forest areas and protected forest areas are experiencing gradual deforestation each year. This study aims to understand land use and identify deforestation in East Kalimantan Province in the years 1990 and 2020. The method used in this research is Geographic Information System (GIS) to process and analyze data, thereby obtaining information on land use types, area, and deforestation in East Kalimantan Province for the years 1990 and 2020. The results of this research include maps and data on deforestation in East Kalimantan Province for the years 1990 and 2020. Land use in East Kalimantan Province is classified into 21 land use classes, namely primary dryland forest, secondary dryland forest, primary mangrove forest, secondary mangrove forest, primary swamp forest, secondary swamp forest, plantation forest, plantations, shrubland, swamp shrubland, mixed dryland agriculture with shrubs, dryland agriculture, transmigration areas, settlements, open land, rice fields, ponds, water bodies, swamps, airports, and mining. There are four dominant land use change types related to deforestation: first, four types of forest land have changed to swamp shrubland; second, two types of forest land have changed to mixed dryland agriculture with shrubs; third, two types of forest land have changed to ponds; and fourth, two types of forest land have changed to mining.

Pemetaan Pola Arus Sungai Mahakam Kabupaten Kutai Kartanegara Menggunakan Software ArcGIS Wardani, Fevrin; Fadlin, Feri; Insanu, Radik Khairil; Pramono, Dwi Agung
Journal of Geomatics Engineering, Technology, and Science Vol. 3 No. 1 (2024): September 2024
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v3i1.42

This research is undermined by the dynamics of the current patterns of the Mahakam River, which is a crucial element in understanding the waters including the safety of the river transportation. The method used in this study is to take field data horizontally using the Current Meter tool, which is then continued with the analysis process with the help of ArcGIS software. The results of the research show that the speed patterns and direction of the flow of the river have different significance in each depth, as for the direction pattern of the current of the Mahakam River dominates from top to bottom, the cause of the occurrence of different direction of flow due to the topographic factors of the base river.

Pemetaan Topografi Saluran Drainase Ruas Jalan Pangeran Diponegoro – Yos Sudarso Kota Samarinda Provinsi Kalimantan Timur Riswan, Muhammad Erik; Fadlin, Feri; Insanu, Radik Khairil; Akshar, Muh.
Journal of Geomatics Engineering, Technology, and Science Vol. 3 No. 2 (2025): March 2025
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v3i2.49

This research is motivated by the frequent occurrence of waterlogging or flooding at the research location due to insufficient drainage capacity to accommodate the large volume of water. Therefore, topographic mapping of the drainage channels is conducted, with the data intended for planning the installation of pumps and normalization of the drainage channels. This study aims to describe the situational topography and present longitudinal and cross-sectional profile maps, as well as drainage volume information using AutoCAD Civil 3D 2022 and ArcMap 10.8. The topographic mapping of the drainage channels resulted in topographic maps, longitudinal profile (Long Section) maps, and cross-sectional profile (Cross Section) maps with a total of 202 coordinate points, an overall road length of 664 meters, 28 stations, divided into 25 meters for each station section, and a total drainage volume of 2104.17 cubic meters along Pangeran Diponegoro – Yos Sudarso road. Additionally, the presentation of the drainage channel slope was included. This research was conducted on Jalan Pangeran Diponegoro – Yos Sudarso in Samarinda City. The measurements in this study utilized the ComNav T300 Geodetic GPS using the Real-Time Kinematic (RTK) method.

Pemetaan Perubahan Kerapatan Vegetasi Mangrove di Kabupaten Berau Tahun 2019 – 2023 dengan Metode Normalized Difference Vegetation Index (NDVI) Fasabbih, Tsalji Dzakira; Pramono, Dwi Agung; Fadlin, Feri; Sofyan A. P., Andi Baso
Journal of Geomatics Engineering, Technology, and Science Vol. 3 No. 2 (2025): March 2025
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v3i2.50

Berau merupakan salah satu kabupaten di Provinsi Kalimantan Timur yang beribukota di Tanjung Redeb. Potensi hutan mangrove di Kabupaten Berau cukup luas mencapai 86 ribu hektar yang harus terus dijaga karena memiliki manfaat dan fungsi yang sangat besar. Vegetasi mangrove di Kabupaten Berau memiliki peran ekologis yang penting, termasuk sebagai habitat bagi berbagai jenis flora dan fauna, serta sebagai pelindung pantai dari erosi. Perubahan kerapatan vegetasi mangrove dapat mencerminkan kondisi kesehatan ekosistem tersebut. Penurunan kerapatan vegetasi dapat menunjukkan adanya degradasi lingkungan yang perlu ditangani. Penelitian ini bertujuan untuk melakukan pemetaan perubahan kerapatan vegetasi mangrove di Kabupaten Berau memanfaatkan teknologi penginderaan jauh, yakni metode Normalized Difference Vegetation Indeks (NDVI) melalui pengolahan data citra Sentinel-2 tahun 2019 sampai tahun 2023. Penggunaan citra satelit, khususnya Sentinel-2A, merupakan pendekatan modern dalam memantau dan menganalisis perubahan vegetasi. Hasil penelitian menunjukkan adanya perubahan kerapatan vegetasi mangrove di Kabupaten Berau dari tahun 2019 hingga 2023. Tahun 2019 kerapatan dengan klasifikasi lebat mencakup 79%. Kawasan mangrove. Menurun drastis menjadi 48% pada tahun 2023. Kerapatan dengan klasifikasi sedang sebesar 4% pada tahun 2019, meningkat menjadi 26% pada tahun 2023. Sedangkan kerapatan dengan klasifikasi jarang sebesar 7% pada tahun 2019 lalu meningkat menjadi 19% pada tahun 2023. Pada penelitian ini berhasil menunjukkan perubahan kerapatan vegetasi mangrove di Kabupaten Berau selama periode 2019-2023 dengan menggunakan metode NDVI. Hasil ini memberikan wawasan yang penting bagi upaya konservasi dan pengelolaan lingkungan di daerah tersebut, serta menunjukkan potensi penggunaan teknologi penginderaan jauh dalam memonitor kondisi vegetasi secara efisien dan akurat.

Pemetaan Distribusi Kecepatan Arus Saluran Drainase Akibat Pasang Purnama (Spring Tide) Menggunakan HEC-RAS (Studi Kasus Ruas Jalan H. Hassan Alwie - Niaga Barat Kota Samarinda) Adiputra, Rio; Fadlin, Feri; Pramono, Dwi Agung; Kurniadin, Nia
Journal of Geomatics Engineering, Technology, and Science Vol. 3 No. 2 (2025): March 2025
Publisher : P3KM Politani Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v3i2.51

The flow velocity patterns in drainage channels are crucial to study and understand in the context of water and environmental management. Drainage channels play a vital role in conveying rainwater and wastewater, often becoming a limited resource. A deep understanding of the flow velocity patterns in drainage channels is essential to manage water availability, reduce flood risks, and ensure good water quality. These flow velocity patterns are significantly influenced by the geometry, channel topography, water discharge, and other hydrological conditions. Advances in hydraulic modeling technology, such as the use of HEC-RAS software, have enabled more accurate and detailed hydraulic flow simulations. This hydraulic modeling technology is applied to address hydrological issues in the drainage channel on H. Hassan Alwie - Niaga Barat Street, Samarinda City, which frequently experiences water overflow, disrupting mobility and user safety. This study aims to determine the spring tide conditions on the flow velocity distribution in the drainage channel on H. Hassan Alwie - Niaga Barat Street, Samarinda City. Tidal data obtained from the Mahakam River during the spring tide period were used as input in modeling using HEC-RAS 6.5 software. The research results show significant variations in water level and flow velocity in the drainage channel during the spring tide period. The water level reached a maximum of 1.89 meters and a minimum of 0.01 meters, while the flow velocity varied between 0.03 m/s and 0.48 m/s. Mapping the flow velocity distribution revealed clear patterns, with areas of low flow velocity tending to accumulate sediment, potentially causing flooding. These findings provide a better understanding of the interaction between the spring tide phenomenon and urban drainage systems, which can be used to improve drainage planning and management in affected areas.

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