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Shanis Irsamayanti
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Journal of Marine-Earth Science and Technology
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : -     EISSN : 27745449     DOI : https://doi.org/10.12962/j27745449
Core Subject : Science,
Earth & Planetary Sciences Energy
In the fast-growing of science and technology of marine-earth related topics, we would like to launch a new international journal entitled MarineEarth Science and Technology Journal (JMEST). This journal is aimed as a media communication amongst scientists and engineers in the fields of marine and earth science and technology and will receive research and technical papers to be reviewed by our editors and reviewers. The JMEST issued three times a year and each issue consists of 5 (five) papers. The scope of the journal includes (but not limited to): Geology, Geophysics, Geochemistry, Atmospheric Science, Environmental Science, Hydrology, Geothermal, Marine Engineering, Marine Technology, Underwater Technology, Marine Renewable Energy
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Teknik Geologi dan Geologi Teknik
Articles 5 Documents
 1 
Search results for , issue "Vol. 2 No. 2 (2021): September" : 5 Documents clear
ANALYSIS OF FLOOD HAZARDS IN MAGETAN REGENCY USINGDISTANCE SENSING METHOD Jamilah, Zahrotin; Widodo, Amien; Singgih Purwanto, Moh
Journal of Marine-Earth Science and Technology Vol. 2 No. 2 (2021): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1406.196 KB) | DOI: 10.12962/j27745449.v2i2.60

Abstract

Flood is an annual disaster that hits all over Indonesia, and Magetan Regency is one of the affected area . The high regional topography in the western part and the relatively flat topography in the eastern part making it potential for flood to be higher in the eastern part. The DEM (Digital Elevation Model) topography, Landsat maps, and hazard index maps can be identified by remote sensing using regional administration map data, the level of slope slope and vegetation density can be mapped using NDVI method, and the classification of the flood risk level of an area can be done using ArcGIS software. The slope of the slope and the density of vegetation will affect the level of potential flood hazard. There is a low level of potential for flooding on steep slopes because the air will flow and accumulate on the lower plains. Higher vegetation density will provide a good air catchment area. The level of vegetation density is also higher in the western part. Based on the percentage of the affected area, the low flood hazard level reaches 73.3%, so it can be concluded that the flood hazard level in Magetan Regency is low. It is necessary to provide adequate land and channels capable of providing air flow.
ACCURACY INVESTIGATION OF THE THREE-POINT RESECTION METHOD THROUGH THE DISTRIBUTION OF CONTROL POINTS ACROSS FOUR QUADRANTS Sharafeldin Mohamed Osman, Anas; Mabrouk, Abdalla M A; Mahjoub, Abdalraheem M A; Elkhalifa, Eltayeb A M; Abbas Elhag, A
Journal of Marine-Earth Science and Technology Vol. 2 No. 2 (2021): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2234.927 KB) | DOI: 10.12962/j27745449.v2i2.101

Abstract

The three-point resection method is a valuable and effective technique in surveying that provides accurate and efficient solutions for determining the position of a resected point (point of unknown location). This paper presents a simple and innovative approach to determining the accuracy of the three-point resection problem in surveying. The method involves distributing control points (points of known locations) across four quadrants and computing the coordinates of the resected point (P) several times in order to see which quadrant provides better accuracy. The study investigates the impact of the positions of the control points, either in one quadrant or a combination of quadrants, on the accuracy of the resected point, which is a new contribution to the existing literature. The primary objective of this article is to explore the influence of the distribution of control points in different quadrants on the accuracy of the resected point. Furthermore, the study aims to determine the optimal positions of the three points in terms of their positions in one quadrant or their positions in a combination of quadrants. The relationship between the relative positions of the resected point and other control points, and the accuracy of the resected point is also examined in detail. The results of this study show that the relative positions of the control points and the resected point significantly impact the accuracy of the resected point. The paper concludes by defining the positions of control points distributed across quadrants that result in the best accuracy of the resected point.
TWEET SENTIMENT ANALYSISON GREENSPACES Denaro, Lino Garda; Sujana, Yudianto; Fatihul Ilmy, Hafsah
Journal of Marine-Earth Science and Technology Vol. 2 No. 2 (2021): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1234.089 KB) | DOI: 10.12962/j27745449.v2i2.105

Abstract

Twitter has become one of the most significant resources for text mining. Twitter can provide information    about human activities, mobility, and emotional patterns along with location data. Many types of text research can be made with these data, one of which is sentiment analysis. This study evaluates the potential of deriving emotional responses of individuals from tweets while they experience and interact with urban green space. A machine learning model using Support Vector Machine (SVM) and corpus from over 2000 movie reviews has been made. This model is used to classify incoming tweets into positive and negative sentiments. Then the web-based recommender system has been built to provide suggestions for green spaces based on users' preferred activities.
SELECTION OF DECOMMISSIONING METHODS FOR GAS PLANT FACILITIES USINGANALYTICAL NETWORK PROCESS Prayudha, Aditya; Buda Artana, Ketut; Pratiwi, Emmy; C Katon, Yoke; Agung P, Achmad
Journal of Marine-Earth Science and Technology Vol. 2 No. 2 (2021): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1517.854 KB) | DOI: 10.12962/j27745449.v2i2.123

Abstract

The high complexity of decommissioning decisions presents a challenging problem for decision-makers due to the various parameters and stakeholders involved. Currently, a Floating Production Unit, BW Joko Tole located at the Lapangan Terang Sirasun Batur field, in East Madura Waters are expected to be decommissioned as gas reserves are running low for the upcoming 9 years. Multi-Criteria Decision Analysis has begun to be implemented by several oil and gas companies and several studies applied various MCDA methods in choosing the best alternatives. Analytical Network Process is a powerful tool to handle the interdependencies of elements involved in decommissioning, as no other MCDA methods can accommodate these relationships between elements. This study aims to simulate the implementation of the Analytical Network Process as one of MCDA methods in choosing decommissioning methods for these facilities, specifically pipelines and umbilicals operated by FPU BW Joko Tole. Regulatory review is carried out to determine the suitable alternatives, criteria, and sub-criteria needed to be considered in choosing decommissioning alternatives and evaluated using the Analytical Network Process (ANP). This study will provide an example of the ANP network model in decommissioning decisions followed by a sensitivity analysis to determine the robustness of the chosen alternatives and the values of each element involved.
IDENTIFICATION OF BUILDING DENSITY USING UAV MAPPING METHOD IN CENTRAL KALIMANTAN REGIONAL SETTLEMENT INFRASTRUCTURE Pongdatu, Dennis Euro; Ghozy Salahudin, Kholiq; Mokhamad Nur, Cahyadi; Dwi Anggoro, Primasetya
Journal of Marine-Earth Science and Technology Vol. 2 No. 2 (2021): September
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v2i2.215

Abstract

The increased population density in urban areas has caused buildings density that need to be identified to find out the development and growth of an area that requires clear planning. This research is using aerial mapping method to produce orthophoto area of Garuda - Tingang street. The on-screen digitation was carried out based on the aerial photo data result to determine the number of buildings and the total area of the building. Then, the classification of land cover vegetation and built up land were carried out. From the data processing, 1641 buildings were found on Garuda – Tingang street. The total area of the building is 35,478 hectares. Based on the Decree of the Minister of Public Works No.378/KPTS/1987, Appendix No.22 has a low building density level. The results of the classification state that the vegetation class has a total percentage of 42,969% and the built-up land class has the percentage of 57.031%.

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