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All Journal JURNAL TEKNIK SIPIL ITP ISSN 2354-8452 Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Cakrawala: Jurnal Pengabdian Masyarakat Global Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Venus: Jurnal Publikasi Rumpun Ilmu Teknik Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Fajrin Fajrin
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences

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Identifikasi Urban Heat Island Kota Padang Menggunakan Teknik Pengindraan Jauh dan Sistem Informasi Geografis Fajrin Fajrin; Dwi Marsiska Driptufany
JURNAL TEKNIK SIPIL ITP Vol 6, No 1 (2019): JURNAL TEKNIK SIPIL (JTS) ITP
Publisher : LP2M ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Urban Heat Island (UHI) adalah sebuah fenomena lingkungan di mana suhu (misalnya bangunan, beton, aspal dan aktivitas industri) di daerah perkotaan secara signifikan lebih tinggi daripada di daerah pedesaan di dekatnya. Banyak bukti telah membuktikan bahwa itu dapat menyebabkan beberapa efek buruk bagi masyarakat, seperti peningkatan konsumsi energi. Suhu permukaan tanah (LST) diambil dari tiga perekaman data Landsat multitemporal untuk menganalisis pola spasial termal dan intensitas permukaan. UHI tidak dapat diketahui hanya melalui pemrosesan citra tanpa mengidentifikasinya dan analisa spasial melalui Sistem Informasi Geografis (SIG), proses penelitian ini ditandai dengan mengkonversi digital number pada citra satelit Landsat 7ETM+ dan Landsat 8 OLI/TIRS pada Band Thermal untuk menghasilkan LST, proses selanjutnya dilakukan di lingkungan perangkat lunak SIG untuk memperoleh sebaran UHI. Hasil analisa sebaran suhu permukaan daratan (LST) menunjukkan bahwa suhu maksimum kota padang tahun 2007 hingga 2013, terjadi kenaikan nilai suhu maksimum daratan kota padang sebesar 3.840C. Sedangkan untuk tahun 2013 hingga 2017 terjadi kenaikan suhu permukaan daratan 1.570C. Sementara itu untuk sebaran UHI kota padang pada periode pengamatan mengalami peningkatan yang signifikan, terdistribusi hampir keseluruh wilayah pinggiran kota dengan luas awal tahun 2007 yakni 31, 37 Ha menjadi 8.754,60 Ha pada tahun 2017.Kata kunci: Landsat, LST, UHI
Inovasi Pemanfaatan Belimbing Wuluh Menjadi Cemilan Sehat Sahrul Hasan; Rusman Rusman; Nur Ahda Syamsuryani; Hamdani Hamdani; Iyan Febrian; M. Reja Firdaus; Arum Awaliyah; Riski Baitul Alamsyah; Atika Apriyani; Fajrin Fajrin
Cakrawala: Jurnal Pengabdian Masyarakat Global Vol. 3 No. 1 (2024): Cakrawala: Jurnal Pengabdian Masyarakat Global
Publisher : Universitas 45 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30640/cakrawala.v3i1.2134

Abstract

Starfruit is a fruit that is rich in nutrients and has various health benefits. However, starfruit is often neglected and not utilized optimally. Therefore, this research aims to develop innovations in the use of starfruit as healthy snacks. The research methods used are experiment and observation. Starfruit is processed into various sweets. These products are then tested for quality, including taste, texture and nutritional value. The research results show that starfruit can be processed into healthy snacks that are delicious and nutritious. Candied starfruit has a unique and savory taste, and has a soft and naturally sweet texture. Starfruit snacks also provide rich vitamin C. Using starfruit as a healthy snack can provide a healthy and nutritious alternative for the people of South Rabangodu. Apart from that, this can also help reduce waste and utilize the potential of starfruit which is often wasted
Perbandingan Direction Ascending dan Descending di Segmen Sianok Sesar Semangko Menggunakan Metode Ps-InSAR Monalisa Perwanda; Dwi Marsiska Driptufany; Sayidinal Fikri; Dwi Arini; Fajrin Fajrin
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 1 (2024): Februari : Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i1.183

Abstract

The movement of the Sumatran fault is triggered by plate activity in the western subduction zone of Sumatra, namely the Indo-Australian plate which moves down the Eurasian plate, causing pressure to push the Sumatra region towards the north. The purpose of this study is for the results of Ascending and Descending data on the impact of faults that occur on the Semangko Segment Sianok fault from 2020-2023 and to map the Land Displacement of the Semangko Segment Sianok fault from 2020-2023. Based on the results of data processing in this study, it can be concluded that in this study using ascending and descending direction data that experienced land movement (Land Displacement) due to this movement the impact of faults that occurred due to seismic activity along the segment resulted in the impact of natural disasters such as landslides, and earthquakes. This impact was triggered due to land movement because the effects of surface faults and ground shaking did cause most of the damage in several events. The ascending data explains the annual uplift of 15.28 mm marked in dark blue and the red color on the map shows the subsidence of -30.55 mm per year, while the light bitu color dominates in urban areas or areas inhabited by many people. While in the descending data, changes in land movement show an annual uplift of 6.74 mm and the red color shows subsidence of -13.47 mm per year. From the color change of each data shows ascending and descending data experiencing land subsidence uplift and subsidence.
Analisis Jumlah dan Distribusi Ground Control Point Yang Efektif dan Efisien Pada Pemetaan Foto Udara: Studi Kasus di Desa Kohong, Kecamatan Barito Tuhup Raya, Kabupaten Murung Raya, Provinsi Kalimantan Tengah Hangger Aqiim Mohammad Pandego; Fajrin Fajrin; Dwi Arini
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 5 (2024): Oktober: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i5.599

Abstract

Aerial photo mapping requires Control Points (CP). The Indonesian National Standard 8202:2019 regulates the number of CPs needed. The smallest area regulated is less than 250 km². Projects with an area of less than 1 km² have the same number of CPs as those with an area of less than 250 km². This is neither effective nor efficient because the CP work depends on the number of workers and requires time based on access to the project site. This study aims to identify the minimum number of CPs and the appropriate distribution of CPs for aerial photo mapping at a scale of 1:2,500 class 1 that is effective and efficient in terms of time and cost. The study uses seven schemes. Schemes 1 and 7 use 4 Ground Control Points (GCP) and 5 Independent Control Points (ICP). Scheme 2 uses 5 GCPs and 4 ICPs. Schemes 3, 4, 5, and 6 use 3 GCPs and 6 ICPs. Each scheme will be evaluated based on CE90 and LE90 values. The maximum CE90 value is 0.75 m, and the LE90 value is 0.5 m. The effective and efficient scheme in terms of time and cost is determined by the number of GCPs used, as well as the CE90 and LE90 values. The results indicate that all schemes have CE90 and LE90 values below the maximum standard. Scheme 4 is identified as the most effective due to having the highest CE90 and LE90 values among the schemes, with CE90 at 0.028 m and LE90 at 0.448 m. Scheme 4 is also identified as the most efficient because it uses a minimal number of GCPs—only three—distributed diagonally from the Southeast to the Northwest in the project area.
Dinamika Temperatur Permukaan Tanah di Kota Pariaman Berdasarkan Citra Satelit Ridho Illahi; Fajrin Fajrin; Ilham Armi; Dwi Marsiska Driptufany; Defwaldi Defwaldi
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 2 (2025): Agustus : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i2.5755

Abstract

Changes in land surface temperature are one of the important indicators in monitoring global environmental change. In the last decade, increasing surface temperatures have become a global concern, as they have the potential to affect ecosystems, air quality, water availability and human health. In addition, increasing land surface temperature also has a direct impact on the urban heat island phenomenon, which can worsen environmental conditions in urban areas. In this context, analyzing periodic changes in land surface temperature is important to understand the patterns and factors that influence these changes. The objectives in conducting this research, namely: Analyzing the land surface temperature, Creating a regional land surface temperature map and Analyzing changes in land surface temperature from the land surface temperature map of Pariaman City in 2015, 2019, and 2023. Based on the results of the analysis of changes in land surface temperature using Landsat 8 OLI/TIRS images in 2015, 2019, and 2023, it was found that there were significant variations in temperature changes in several areas. Landsat 8 image data is processed through several stages, starting from converting Digital Number (DN) values to spectral radians, brightness temperature, to estimating Land Surface Temperature (LST) in Celsius units. The analysis shows that there was a significant increase in land surface temperature during the period, especially in urban and coastal areas. In 2015, the majority of areas had temperatures of 20°C-24°C, while in 2019 it shifted to 24°C-28°C, and in 2023 it was dominated by temperatures of 28°C-32°C and above 32°C. These changes reflect a significant local warming trend, influenced by human activities and land use change. This research is expected to contribute to the understanding of environmental dynamics and support spatial planning that is more adaptive to climate change.
Analisis Ketelitian Horizontal Pengukuran Orthofoto Menggunakan DJI Mavic 3 Enterprise Metode RTK dan PPK Ary Pratama Putra; Fajrin Fajrin; Dwi Arini
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 3 (2025): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i3.1065

Abstract

Aerial photo measurement aims to provide a real, fast, and interactive representation of the Earth's surface. Various methods of aerial photo acquisition and correction can be applied to obtain accurate results. The primary objective is to produce photos that present reliable and precise information consistent with actual conditions. A commonly used method in aerial photo mapping is the utilization of unmanned aerial vehicles (UAVs). The correction methods applied include direct correction, known as the Real-Time Kinematic (RTK) method, and post-processed correction, known as the Post-Processed Kinematic (PPK) method. This study aims to identify the highest horizontal orthophoto quality based on the Indonesian Geospatial Information Agency Regulation (BIG) No. 6 of 2018 concerning RBI map accuracy, by comparing the RTK and PPK methods, as well as variations in flight altitude during UAV data acquisition. The research conducted in Lemo II Village, Teweh Tengah District, North Barito Regency, Central Kalimantan Province revealed that the highest horizontal orthophoto quality was achieved using the PPK correction method at a flight altitude of 120 meters, with a horizontal RMSE value of 0.048 meters and an accuracy of 0.073 meters, which meets Class 1 standards at a 1:1000 scale. These values were obtained from tests conducted on 15 ICP points. Additional tests performed to determine the significance of model and method differences indicated that variations in flight altitude and photo correction methods have a significant impact on horizontal orthophoto quality.
Perbandingan Volume Run Of Mine dengan Menggunakan Data Hasil Pengukuran Terrestrial Laser Scanner dan Unmanned Aerial Vehicle Ahmad Sohibul Borhan; Fajrin Fajrin; Dwi Arini
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 3 (2025): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i3.1066

Abstract

Coal is one of the main energy sources and the largest contributor to national revenue; however, its management faces challenges related to limited availability and accuracy in reserve estimation. An essential aspect of mining management is monitoring the Run of Mine (ROM) volume, which plays a critical role in crushing, washing, and blending processes. This study aims to compare the accuracy of ROM volume measurements using Terrestrial Laser Scanner (TLS) and Unmanned Aerial Vehicle (UAV) methods in the production area of PT FAD, Berau Regency, East Kalimantan. A quantitative descriptive approach was employed, involving field data acquisition, three-dimensional modeling, and volume analysis using specialized software. The results show that ROM volume measured with TLS was 1,407.669 lcm, while UAV produced 1,387.357 lcm, with a difference of 20.312 lcm or 1.45%. This deviation is within the ASTM D6172-98 tolerance limit (<2%), indicating that both methods are valid. Although TLS offers higher accuracy, UAV is more effective and efficient in terms of measurement time, making it a reliable alternative for modern mining monitoring. This study provides practical insights for the mining industry in selecting ROM volume measurement methods that are not only accurate but also efficient in supporting sustainable operations and data-driven decision-making.
Analisis Perubahan Tutupan Lahan Tahun 2013 Sampai 2024 di Kota Pariaman Yollanda Septiani; Fajrin Fajrin; Defwaldi Defwaldi
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 3 (2025): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i3.1067

Abstract

This study aims to analyze land cover changes in Pariaman City in 2013, 2018, and 2024 using Landsat-8 imagery with the support of the Google Earth Engine (GEE) platform and the Classification and Regression Trees (CART) algorithm. Land cover change is a critical issue in Pariaman City, as population growth, infrastructure development, and economic activities have driven significant land conversion. The classification generated eight land cover classes representing the general condition of the area. The analysis revealed that rice fields were the dominant land cover in all three periods; however, they experienced a substantial decline, indicating land conversion, particularly into settlements and road networks. In addition, the area of mangrove forests and water bodies in coastal regions decreased, while plantation areas in the eastern and southern parts of the city increased. Conversely, river land cover remained the smallest category, with annual fluctuations. The identified change patterns included urban sprawl (expansion of settlements into suburban areas), the conversion of productive land into infrastructure, and coastal degradation due to human activities and natural factors. The accuracy assessment produced overall accuracy and a Kappa index above 80%, while validation using the Mapping Accuracy method through Google Earth showed per-class accuracy rates above 75%, categorized as very good. These findings indicate that the use of satellite imagery and the CART algorithm in GEE is effective for monitoring land cover dynamics while providing valuable insights for local governments in formulating sustainable development policies and managing coastal environments such as those in Pariaman City.
Kesesuaian Geometrik Jalan Ditinjau dari Aspek Alinyemen Horizontal dengan Metode Bina Marga: (Studi Kasus : Jl. Padang-Solok Kelurahan Indarung, Kec. Lubuk Kilangan, Kota Padang, Prov. Sumatera Barat) Hengki Rolando Sirait; Fajrin Fajrin
JURAL RISET RUMPUN ILMU TEKNIK Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v3i1.2839

Abstract

Padang-Solok Road, which has uphill road conditions and sharp corners, makes this road a lot of accidents. Apart from the negligence of motorists, accidents in this area are also caused by geometric factors of the road. The purpose of this study is to determine the suitability or not of road geometry in terms of horizontal alignment with the Highways method. This type of research is descriptive quantitative. It was found thatthe existence of the existing situation after being concluded from the approach of the experience of going into the field is that the road has a fairly extreme slope where the road on the left if it leads to Solok has a fairly high slope. And the existing suitability with clan building has several differences, discrepancies and gaps both intentional due to road conditions and elements of accident.
Analisis Perubahan Lahan Terbuka Tambang Pasir Golongan C di Nagari Aia Dingin, Kecamatan Lembah Gumanti, Kabupaten Solok Devindo Yudilar Fahmi; Dwi Marsiska Driptufany; Defwaldi Defwaldi; Dwi Arini; Fajrin Fajrin
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6381

Abstract

Class C sand mining activities in Nagari Aia Dingin, Lembah Gumanti District, Solok Regency have been ongoing since 1999 and continue to expand to this day. This mining provides economic contributions to the local community, but on the other hand, it also has a significant impact on the environment, particularly on land cover changes. This study aims to analyze changes in open land caused by sand mining activities, using remote sensing technology as a monitoring tool. The approach used is descriptive quantitative, through the interpretation of Google Earth satellite imagery in 2015 and 2018 and Sentinel-2 imagery in 2024. Spatial analysis was conducted with the help of ArcGIS software to obtain a visual and numerical picture of land cover changes. The results of the study indicate a significant increase in the area of sand mining from 2015 to 2024. In 2015, the mining area was recorded at 8.72 hectares, and increased to 22.14 hectares in 2024. This indicates an increase in mining land area of 13.42 hectares over a nine-year period. Land use conversion has occurred on a massive scale, from dryland forest, scrubland, and dryland areas to open-pit mining areas. This land cover change has the potential to cause environmental degradation such as erosion, reduced biodiversity, and disruption to regional water systems. These findings underscore the importance of stricter monitoring and sustainable spatial planning in natural resource management. The use of remote sensing technology has proven effective in monitoring the dynamics of land use change and can serve as a basis for formulating environmental policies that are more responsive to the impacts of mining activities.
Co-Authors Ahmad Sohibul Borhan Arum Awaliyah Ary Pratama Putra Atika Apriyani Defwaldi Defwaldi Devindo Yudilar Fahmi Dwi Arini Dwi Marsiska Driptufany Hamdani . Hangger Aqiim Mohammad Pandego Hengki Rolando Sirait Ilham Armi Iyan Febrian M. Reja Firdaus Monalisa Perwanda Nur Ahda Syamsuryani Putri Dwiya Agustin Ridho Illahi Riski Baitul Alamsyah Rusman Rusman Sabet Ati Gunung Sahrul Hasan Sayidinal Fikri Suci Ramayana Wahyu Nauval Hafizh Yollanda Septiani