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All Journal J SIG (Jurnal Sains Informasi Geografi) Buletin Poltanesa Sewagati Journal of Geomatics Engineering, Technology, and Science Geoid - Journal of Geodesy and Geomatics
Shabri Indra Suryalfihra
Politeknik Pertanian Negeri Samarinda
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Detection of the Post-Earthquake Damage in Mamuju Regency in January 2021 Using Sentinel-1 Satellite Imagery Zulfha Diya Nur Ardzilla; Nia Kurniadin; F. V. Astrolabe Sian Prasetya; Romansah Wumu; Dawamul Arifin; Shabri Indra Suryalfihra
Poltanesa Vol 24 No 1 (2023): June 2023
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v24i1.2495

Abstract

Friday, January 15 2021 at 02:28:21 Local Time, a tectonic earthquake with a magnitude of 6.2 occurred in Mamuju Regency. The epicenter of the earthquake was on land and at 38 km in depth, 6 km to the northeast of Majene, West Sulawesi Province. This earthquake has damaged buildings such as the West Sulawesi Governor’s Office, the Mitra Manakara Hospital, and landslides at several points on Mamuju – Majene highway. The purpose of this research is to determine the post-earthquake damage that occurred in Mamuju Regency and to find out the area that was detected because of the earthquake. By using Sentinel-1 satellite image data and the change detection method from two Sentinel-1 SAR images, ESA SNAP software is used for data processing by using a threshold classification on the images before and after the earthquake, then converting Raster to Vector, Clip according to the boundaries of Mamuju Regency and Layouts using ArcGIS software. The results of this study are the detection of the post-earthquake damage that occurred in Mamuju Regency of 100.64 km2 (14.78%) total area of damage detected. This research also obtained post-earthquake damage detection maps.
Perbandingan Laju Penurunan Muka Tanah Menggunakan Metode DInSAR dengan Pengolahan Data Aktual Annisa Amelia; Nia Kurniadin; Romansah Wumu; Shabri Indra Suryalfihra
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.v2i1.29

Abstract

This research is motivated by how the data generated from the capabilities of the radar technology used in monitoring land subsidence using the DInSAR (Differential Interferometry Synthetic Aperture Radar) method is compared with actual data in the mining sector. The purpose of this study was to determine the suitability of the land subsidence rate using the DInSAR method against the actual data. DInSAR processing is carried out using a pair of Sentinel-1 Terrain Observation by Progressive Scans (TOPS) images with acquisition times before and after changes in conditions due to mining activities. Actual data processing in the form of topographical data at the End of the Month (EOM) by carrying out the drape elements process by 30 sample points to provide information on the value of changes in elevation that occur within a period of three months. The results of the research show that there is a discrepancy between the data generated using the DInSAR method and the actual data. This can be due to the limitations of radar sensors in detecting soil dredging activities in mining areas. So that further processing is needed so that the results of Sentinel-1 Image processing with the DInSAR method can represent the value of land subsidence in the field.
Pemetaan Penggunaan Lahan Desa Lendiang Liang Nayuq dengan Memanfaatkan Data Pendaftaran Tanah Sistematis Lengkap Tahun 2022 Herlan Herlan; Nia Kurniadin; Ahmad Aris Mundir Sutaji; Shabri Indra Suryalfihra
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.v2i2.34

Abstract

The research was motivated by the implementation of Complete Systematic Land Registration (PTSL) activities in Lendiang Liang Nayuq Village in 2022 to provide guarantees of legal certainty or rights to land owned by the community. PTSL activities have an impact on land use in Lendiang Liang Nayuq Village. Thus, it is necessary to utilize the results of these measurements to map land use. The aim of this research is to determine the area of Lendiang Liang Nayuq Village, the area of land that has been developed in the form of settlements, public facilities, plantations, and Cultivation Rights (HGU) in Lendiang Liang Nayuq Village, Siluq Nurai District, West Kutai Regency. The method used in this research is direct measurements in the field using GPS Geodetic HI-target v60 to obtain measuring field coordinates in the form of land use and village administrative boundaries. Next, digitization is carried out using GIS software. The results of this research showed that the number of fields measuring PTSL 2022 results in Lendiang Liang Nayuq Village, Siluq Ngurai District, West Kutai Regency was 314 fields, consisting of housing, public facilities, and plantations. Meanwhile, the land use area is 0.03% of the built-up land area in the form of settlements, 0.66% plantations, 0.09% public facilities, 25.51% Cultivation Rights and the remaining 73.71% is non-PTSL 2022 land.
Pemanfaatan Citra Sentinel-2 untuk Analisis Perubahan Kerapatan Vegetasi di Kecamatan Palaran Tahun 2019-2021 M. Kurniawan; Nia Kurniadin; Hasanudin Hasanudin; Shabri Indra Suryalfihra
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.v2i2.38

Abstract

Palaran is a sub-district in Samarinda City, East Kalimantan Province, with an area of approximately 221.29 km2. Palaran Sub-District is a place for various activities of residents and other areas around Samarinda City. These activities caused Palaran Sub-District to develop rapidly. The increasing need for housing is the cause of the conversion of green land as a vegetation area to other functions. Land conversion will increase along with population growth. The existence of vegetation in urban areas as green open space has many benefits, one of which is producing clean air. Apart from being an important element, vegetation also ensures that the ecosystem is not disturbed. The aim of this research is to determine changes in Vegetation Density in Palaran Sub-District and to determine the extent of changes in Vegetation Density in Palaran Sub-District. The Normalized Difference Vegetation Index (NDVI) method is used to analyze changes in vegetation density by utilizing Sentinel-2 imagery data recorded in 2019, 2020 and 2021. The results of the research are maps of changes in vegetation density and the magnitude of changes that occurred in Palaran Sub-District in 2019, 2020, 2021. Changes in density of high, medium, low, very low and non-vegetated vegetation from 2019 to 2021 respectively covering an area of 925.76 Ha, -160.52 Ha, -270.24 Ha, -654. 20 Ha, and 159.20 Ha. There was an increase in the density of high and unvegetated vegetation, as well as a decrease in the density of medium, low and very low vegetation. It is hoped that this information can be used as supporting data in efforts to control land conversion to maintain spatial planning and carrying capacity that is beneficial to the community
Pelatihan Pelacakan Dan Pemasangan Tanda Batas Persil Tanah Masyarakat Desa Tanjung Batu, Kecamatan Tenggarong Seberang, Kabupaten Kutai Kartanegara Arifin, Dawamul; Kurniadin, Nia; Suryalfihra, Shabri Indra; Wumu, Romansah; Insanu, Radik Khairil; Fadlin, Feri; Prasetya, F. V. Astrolabe Sian
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2486

Abstract

Pelatihan Pelacakan dan Pemasangan Tanda Batas Persil Tanah di Desa Tanjung Batu, Kecamatan Tenggarong Seberang, Kabupaten Kutai Kartanegara, bertujuan untuk meningkatkan pemahaman masyarakat mengenai pentingnya tanda batas tanah dan cara pelacakannya. Kegiatan ini melibatkan metode sosialisasi, pelatihan, dan praktik langsung menggunakan alat GNSS Geodetik serta aplikasi berbasis Android. Hasilnya menunjukkan peningkatan pengetahuan peserta dalam pelacakan, pengukuran, dan pemasangan tanda batas. Diskusi dua arah mengidentifikasi kebutuhan mendesak akan informasi legalitas tanah. Post-test mengindikasikan kepuasan peserta terhadap pelatihan, yang berdampak pada persiapan masyarakat menyambut program PTSL (Pendaftaran Tanah Sistematis Lengkap). Pelatihan ini juga menjadi media aplikatif bagi mahasiswa dalam implementasi Merdeka Belajar Kampus Merdeka (MBKM).
Analisis Hubungan Kemunculan Hiu Paus (Rhincodon typus) dengan Suhu Permukaan Laut dan Klorofil-a Pada Perairan Botubarani Provinsi Gorontalo Wumu, Romansah; Suryalfihra, Shabri Indra
GEOID Vol. 19 No. 2 (2024)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v19i2.1202

Abstract

Hiu Paus merupakan salah satu hewan yang terancam punah, sehingga masuk dalam hewan yang dilindungi. Salah satu lokasi kemunculan Hiu Paus di Indonesia adalah perairan Botubarani Provinsi Gorontalo. Perairan tersebut dijadikan Kawasan Ekowisata Hiu Paus yang bertujuan meningkatkan ekonomi masyarakat setempat sekaligus menjadi lokasi riset dan konservasi Hiu Paus. Kemunculan Hiu Paus pada perairan Botubarani masih belum banyak diketahui penyebabnya. Secara umum kemunculan Hiu Paus pada suatu lokasi tergantung pada kondisi kimia, fisik, dan biologi perairan. Penelitian bertujuan mencari korelasi antara kemunculan Hiu Paus pada perairan Botubarani menggunakan parameter suhu permukaan laut (SPL) dengan dan Klorofil-a. Kedua data tersebut diperoleh dari data citra Modis dan Landsat-8. Hasil pengujian korelasi antara kemunculan Hiu Paus dengan Klorofil-a dari data harian MODIS Aqua dan Terra masing-masing adalah -0,356 dan -0,077, sedangkan korelasi dengan SPL masing-masing adalah 0,338 dan 0,108. Hasil ini menunjukkan korelasi moderat antara kemunculan Hiu Paus dengan SPL dari data MODIS Aqua, tetapi korelasi yang lemah dengan Klorofil-a. Pengujian korelasi menggunakan data Landsat-8 menunjukkan korelasi moderat positif antara kemunculan Hiu Paus dengan Klorofil-a sebesar 0,499, sementara korelasi dengan SPL menunjukkan nilai yang sangat lemah sebesar -0,183. Selain itu, terdapat korelasi negatif kuat antara Klorofil-a dan SPL dengan nilai -0,782 pada data Landsat-8, mengindikasikan fenomena upwelling. Disparitas dalam hasil ini disebabkan perbedaan resolusi spasial antara data MODIS dan Landsat-8 serta kompleksitas dinamika perairan pesisir yang mempengaruhi kualitas data satelit.
Deteksi Perubahan Suhu Permukaan Tanah dan Hubungannya dengan Pengaruh Albedo dan NDVI Menggunakan Data Satelit Landsat-8 Multitemporal di Kota Palu Tahun 2013 - 2020 Kurniadin, Nia; Yani, Muhammad; Nurgiantoro, Nurgiantoro; Annafiyah, Annafiyah; Prasetya, F. V. Astrolabe Sian; Insanu, Radik Khairil; Wumu, Romansah; Suryalfihra, Shabri Indra
GEOID Vol. 18 No. 1 (2022)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v18i1.1758

Abstract

Gempa yang diikuti tsunami dan likuifaksi melanda Kota Palu pada 28 September 2018. Sejak saat itu, Kota Palu yang merupakan ibu kota Provinsi Sulawesi Tengah, Indonesia, menjadi pusat perhatian dunia. Berbagai kajian dilakukan untuk memperoleh informasi dari berbagai aspek, antara lain aspek terestrial, perubahan tutupan lahan, batuan, dan perubahan iklim. Teknologi penginderaan jauh memberikan kontribusi yang baik bagi proses penelitian, terutama untuk penelitian yang mencakup wilayah yang luas dan dalam jangka waktu yang lama. Salah satu kajian yang dapat dilakukan dengan menggunakan teknologi penginderaan jauh adalah kajian Suhu Permukaan Tanah (SPT) dengan menggunakan data satelit Landsat-8 multitemporal di Kota Palu. Tujuan dari penelitian ini adalah untuk mendeteksi SPT Kota Palu dari data satelit Landsat-8 multitemporal (2013-2020) dan hubungan antara LST dengan Albedo dan NDVI. Kanal Merah, Biru, NIR, SWIR1 dan SWIR2 digunakan untuk mendapatkan nilai albedo dan NDVI. Nilai emisivitas tanah dan vegetasi serta kanal termal digunakan untuk menentukan nilai LST. Selanjutnya koefisien determinasi (R2) digunakan untuk mengetahui korelasi antara LST dengan Albedo dan NDVI. Hasil dari penelitian ini adalah rata-rata peta sebaran LST dari tahun 2013 hingga 2020. Dari 30 titik sampel penelitian nilai LST antara 17,00 oC sampai 43,27 oC, rata-rata R2 antara LST dan NDVI adalah 0,657 (korelasi kuat), dan R2 antara LST dan Albedo 0,069 (korelasi sangat lemah).
Pemetaan Persebaran Penyedia Jasa Survey dan Pemetaan di Kota Samarinda Beze, Husmul; Arifin, Dawamul; Suryalfihra, Shabri Indra
Poltanesa Vol 23 No 1 (2022): Juni 2022
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v23i1.1294

Abstract

Pengembangan desa merupakan program prioritas pemerintah. Pengembangan Desa saat ini dilakukan dengan menjadikan desa sebagai subyek dalam pengembangan sehingga diharapkan mampu menjaga kearifan local masyarakat desa dan menjawab kebutuhan masyarakat desa secara langsung. Pengembangan ini dapat dilakukan dengan memetakan potensi desa. Pemetaan potensi desa ini dilakukan dengan tujuan untuk memetakan kondisi, asset dan kebutuhan desa sehingga dapat menjadi dasar dalam melakukan perencanaan pengembangan desa yang berbasis pada potensi desa dan kearifan local masyarakat desa. Pemetaan potensi desa ini dilakukan dengan metode foto udara. Pemotretan udara dilakukan pada ketinggian 150 m dengan nilai overlap dan sidelap sebesar 80% menggunakan DJI Phantom 3 Pro. Hasil yang diperoleh menunjukkan bahwa desa lekaq kidau memiliki fasilitas perkantoran, pendidikan, peribadatan, perkantoran dan keamanan desa. Peta penggunaan lahan juga menunjukkan bahwa wilayah desa lekaq kidau sebagian besar masih berupa hutan yakni seluas 110,075 ha. Kondisi ini menunjukkan bahwa desa lekaq kidau memiliki potensi dari pengelolaan wilayah hutan yang besar.
Identifikasi Luasan Banjir Rob di Kota Semarang Pada Tanggal 24 Mei 2022 Menggunakan Citra Landsat Andi Nur Rahman; Nia Kurniadin; Romansah Wumu; Shabri Indra Suryalfihra
Journal of Geomatics Engineering, Technology, and Science Vol. 1 No. 2 (2023): March 2023
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v1i2.16

Abstract

Tidal floods are floods that occur as a result of sea tides that inundate areas that have a lower elevation than sea level. The occurrence of tidal floods is due to sea level rise caused by tides, external forces such as water, wind, or swell (waves caused from a long distance), and storms which are natural phenomena that often occur at sea. A tidal flood in Semarang City on May 23, 2022, occurred with a height of 1.5 meters, occurred in the Tanjung Emas Port area. This tidal flood became the most severe flood in 2022. The utilization of remote sensing technology by using Landsat satellite imagery can be maximized to obtain information about tidal flood events that occurred in the city of Semarang. The purpose of this study was to find out how to identify the area of flooding using Landsat 8 and Landsat 9 imagery using the NDWI method and to determine the extent of the tidal flood that occurred on May 24, 2022, by comparing the wettability values of satellite imagery before and after the tidal flood. The results obtained are in the form of changes in the area of water bodies due to tidal flooding on the north coast of Semarang City in the Tugu sub-district 39.982 Ha; West Semarang 16.765 Ha; North Semarang 5.174 Ha; East Semarang 0.104 Ha; and Genuk 33.393 Ha.
Analisis Spasial Temporal Klorofil-a Perairan Ponelo Kepulauan Provinsi Gorontalo Tahun 2018-2022 Menggunakan Data Landsat 8 Romansah Wumu; Nia Kurniadin; Shabri Indra Suryalfihra
Journal of Geomatics Engineering, Technology, and Science Vol. 1 No. 2 (2023): March 2023
Publisher : Geomatics Technology Study Program, Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/gets.v1i2.17

Abstract

Indonesia's maritime area covers approximately 3.25 million km2, which means that 70% of Indonesia's total area is comprised of the ocean. This indicates the enormous potential that Indonesia's ocean holds. The ocean is a crucial resource for the Ponelo Islands community, whose main livelihood is fishing. The marine ecosystem is vulnerable to environmental changes and pollution. Chlorophyll-a can serve as an indicator of the health of marine waters. Mapping the distribution of chlorophyll-a on the ocean's surface can be achieved through remote sensing technology. The study utilized the Nuriya Algorithm (2010) to derive the chlorophyll-a content in surface waters using Landsat-8 data from 2018-2021. Data processing is done through Google Earth Engine (GEE) which has the ability to process large amounts of data quickly (Big Data). The findings indicate an increase in chlorophyll-a content in the waters of Ponelo Islands at the beginning (DOY 0-20) and end (DOY 300-325) of the year. On a spatial scale, the average chlorophyll-a is widely distributed in the waters of Ponelo but is more concentrated in the coastal areas. This indicates that coastal areas of the Ponelo Islands may be more vulnerable to pollution and environmental changes and require special attention in environmental management and marine ecosystem conservation efforts.
Co-Authors Ahmad Aris Mundir Sutaji Andi Nur Rahman Andi Nur Rahman Annafiyah Annisa Amelia Ardiansyah Ardiansyah Ardiansyah Ardiansyah Dana Rahmadi Dawamul Arifin F. V. Astrolabe Sian Prasetya Fadlin, Feri Hasanudin Hasanudin Herlan Herlan Husmul Beze, Husmul M. Kurniawan Muhammad Yani Muhammad Yani, Muhammad Namira Nur Azzahro Namira Nur Azzahro Nia Kurniadin Nurgiantoro, Nurgiantoro Radik Khairil Insanu Romansah Wumu Salsabila, Unik Hanifah Zulfha Diya Nur Ardzilla