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Georest: Geoscience, Remote Sensing, and Technology
Published by Earthcare
ISSN : 29637767     EISSN : 29637767     DOI : https://doi.org/10.57265/georest.v1i1
Core Subject : Science,
Astronomy Earth & Planetary Sciences Physics
Georest: Geoscience, Remote Sensing and Technology is an international peer-reviewed open-access journal dedicated to interchange for the results of high-quality research in all aspect of Sciences, Geoscience, Geophysics, Remote Sensing, Drone, Radar SAR, Optical Satellite, LiDAR, Radar Antenna, Computer Science, Computer Engineering, Engineering, Information Technology, and Visualization.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geofisika
Articles 5 Documents
 1 
Search results for , issue "Vol. 1 No. 2 (2022): Georest" : 5 Documents clear
COMPARISON OF CUT AND FILL VOLUME USING PHOTOGRAMMETRIC MEASUREMENT AND TOTAL STATION MEASUREMENT
Georest Vol. 1 No. 2 (2022): Georest
Publisher : EarthCare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.297 KB) | DOI: 10.57265/georest.v1i2.7

Abstract

Survey activities at the time of mine exploitation aim to map the progress of the mine and to determine the total volume of overburden and coal that has been mined. Currently, the work of mapping surveys has begun to be replaced by observations of recorded data without touching the object or aerial shooting using aircraft or called photogrammetry . The purpose of this study was to determine the difference and difference in volume of autogrammetric processing with volume from survey processing using total stations. From the volume results obtained from the photogrammetric measurements, it will be reduced by the total station survey volume which is considered correct, which is 441,404,769 BCM. The difference between the Cut and Fill Volume of PIT A using Drones and the Volume of Surveys using Total Station is 166,655,453 BCM or around 37.76%. From the difference in the volume of Cut and Fill photogrammetry using each number of GCP points with the volume of Cut and Fill survey total station it can be concluded that the more the number of points GCP then the volume will be closer to the survey volume using Total Station.
SITUATION DETAIL MAPPING OF THE FACULTY OF MATHEMATICS AND NATURAL SCIENCES, UNIVERSITAS NEGERI PADANG USING TOTAL STATION
Georest Vol. 1 No. 2 (2022): Georest
Publisher : EarthCare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.014 KB) | DOI: 10.57265/georest.v1i2.8

Abstract

Detailed Situation Mapping is one of the efforts to provide geospatial information to assist campuses, in this case Padang State University, especially the Faculty of Mathematics and Natural Sciences. Meanwhile Detailed Situation Mapping is a process of measuring and mapping the topography of the earth's surface on a large scale. The situation map contains elements of natural and man-made features on the earth's surface complete with elevation values ​​represented by contour lines. In the measurement process, mapping survey tools are used. One of the tools used is a total station. To make a detailed map of a place, in this case FMIPA UNP, you need location coordinates that are scattered at various points. In order for the resulting maps to be in accordance with geospatial conditions in the field, various applications such as surpac, autocad, arcgis, and so on are used. In the measurement of the horizontal control frame, the closed polygon method was used, while for the measurement of the vertical control frame, the precision flat measurement method was used. For the measurement of detail points, the extrapolation method is used. Meanwhile, for the measurement of high points, the trigonometric method is used using a total station. The type of research used is quantitative research with a descriptive approach. The quantitative research method is a type of research whose specifications are systematic, planned and clearly structured from the start to the creation of the research design. The detail positioning method is carried out for situation mapping at the State University's Faculty of Mathematics and Natural Sciences by measuring the three-dimensional (x, y, z) position of the details determined by the azimuth component (angle, direction and height difference from the tie point). Because of the large amount of detail that is being measured, measurements are made using a fast technique, called tachymetry.
ANALYSIS OF LAND SUITABILITY FOR CINNAMON (CINNAMOMUN BURMANII) IN SUB-DISTRICT BATIPUH, TANAH DATAR REGENCY
Georest Vol. 1 No. 2 (2022): Georest
Publisher : EarthCare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.239 KB) | DOI: 10.57265/georest.v1i2.9

Abstract

Penelitian ini dilakukan di Kecamatan Batipuh Kabupaten Tanah Datar, bertujuan untuk mengetahui karakteristik lahan dan tingkat kesesuaian lahan kayu manis. Metode yang digunakan untuk analisis karakteristik lahan adalah metode deskriptif dan untuk analisis tingkat kesesuaian lahan menggunakan metode scoring dengan pendekatan parametrik. Data yang digunakan adalah data primer dan sekunder dengan pengolahan data menggunakan RStudio. Penenelitian ini dilakukan sesuai dengan panduan evaluasi lahan untuk analisis lahan tingkat semi detail. Variabel penelitian berupa tanah, iklim dan topografi dengan indikator berdasarkan Balai Besar Litbang Sumber Daya Lahan. Hasil penelitian ini menunjukkan Kecamatan Batipuh memiliki suhu 150C – 270C, curah hujan dominan 2000 – 2500 mm per tahun dan bertopografi tinggi yang didominasi oleh kelas kelerengan >15% karena berada di jalur bukit barisan, serta kondisi tanah yang dominan sesuai dengan syarat tumbuh kayu manis. Tingkat kesesuaian lahan kayu manis berdasarkan pendekatan parametrik menggunakan RStudio terdapat 2 tingkat kesesuaian lahan di Kecamatan Batipuh, berupa 84,5% untuk luasan S1 dan 15,5% untuk luasan S2.
Slope Stability Analysis Slope Stability Analysis of Plan Disposal OPD 69 Using Geostudio 2007 PT. Pamapersada Nusantara, South Kalimantan: Plan Disposal OPD 69 PT. Pamapersada Nusantara, South Kalimantan
Georest Vol. 1 No. 2 (2022): Georest
Publisher : EarthCare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.976 KB) | DOI: 10.57265/georest.v1i2.10

Abstract

PT. Pamapersada Nusantara (PAMA) is an industry operating in the field of coal mining contracting, which has an OPD69 disposal which is used as a disposal area for low grade material or overburden. During the formation of the dump, it often experiences landslides caused by the base disposal and the many weak areas on the mining slopes. Therefore the authors identify the occurrence of avalanches at OPD69 so that the slopes become stable and safe, in overcoming this problem a safety factor analysis is carried out. Using geostudio 2007 software to determine the safety factor value with the Morgenstren-price method as a process for making a disposal plan. Based on the safety factor analysis, it was found that SK > 1.25, using an overall slope of 3°. The formation of OPD69 is recommended to follow the redesign dimensions so as to achieve the stability of the disposal slopes that meet the safety criteria. Sections A, B, C, D, and E, with safe slope conditions with an area of 140.47 Ha can accommodate 38,912.12 bcm volume of overburden material at the disposal plan and after being redesigned the volume has changed to 22,260.10 bcm.
Identification of Vulnerable Areas to Maritime Tourists on The Coast of Pacitan Regency
Georest Vol. 1 No. 2 (2022): Georest
Publisher : EarthCare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1028.296 KB) | DOI: 10.57265/georest.v1i2.11

Abstract

The Pacitan Regency is renowned for having stunning beaches with panoramic views that can attract tourists. The Pacitan Regency is home to several marine tourism hotspots, including Banyutibo Beach, Buyutan, Ngiroboyo, Pidakan, and Seruni. However, there may be a threat to tourists lurking behind the stunning view of the beaches that directly face the Indian Ocean. Therefore, this study aimed to assess marine hazards based on coastal characteristics in marine tourism destinations in Pacitan Regency through geomorphological approaches, remote sensing, map analysis, and secondary data from agencies, as well as to formulate recommendations for minimizing marine hazards. The collected data were then processed to obtain information on the characteristics of beaches in marine tourism areas and information on marine hazards. This information was then used as the basis for the preparation of marine hazard mitigation recommendations. Based on the results, it was determined that Banyutibo, Ngiroboyo, and Seruni Beaches had all possible marine hazards. Meanwhile, Buyutan Beach experienced both a tsunami sea hazard and extreme waves, whereas Pidakan Beach only had a tsunami sea hazard. Although hacking currents do not occur on all Pacific beaches, the intensity of their occurrence is the most common among other marine hazards in marine tourism areas. Mitigation efforts must be carried out by building cooperation from all parties to reduce the impact of losses due to marine accidents, such as the installation of Marine Hazard Maps, the installation of prohibition signs, socialization, and education about reducing the risk of marine hazards to the community, etc.

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