Iop Conference Series: Earth and Environmental Science

Journal Information
ISSN / EISSN: 17551307 / 17551315
Published by: IOP Publishing
Total articles ≅ 83,127

Latest articles in this journal

, M Syahidah
Iop Conference Series: Earth and Environmental Science, Volume 930; https://doi.org/10.1088/1755-1315/930/1/012050

Abstract:
Hydrological data in Indonesia, especially in the small islands, is minimal, including spatial distribution and temporal completeness. It will affect the accuracy of water availability estimation for water resources management interest. One of the solutions that can be undertaken is applying rainfall-runoff modeling to obtain the discharge value at a specific location. This study aims to determine surface water availability in each sub-catchment of the small island by implementing the hydrological model. The wflow model is applying to perform the model. This model uses input data including Digital Elevation Model (DEM), landuse, soil, Leaf Area Index (LAI), rainfall, evapotranspiration, and observation of river discharge for the calibration process. As a result, this island consists of 30 catchments with some potential catchments, namely Cao, Sakita, and Tatamo, that have a 90% dependable flow of 4213.3 L/s, 3803.6 L/s 8117 L/s, respectively. The result of water availability in Morotai Island is highly expected to be the reference for water resources management, especially for tourism and urban development.
D J Sasangka
Iop Conference Series: Earth and Environmental Science, Volume 940; https://doi.org/10.1088/1755-1315/940/1/012006

Abstract:
Shortcut 4 new national road development project on Singaraja - Mangwitani section Bali found a potential rock slide slope problem. An outcrop of igneous rock with an intensive joint was not expected to be encountered previously. The excavation work in road construction had to pay attention to the stability of the resulting rock slope considering that apart from the potential for slope failure, rock slope could also threaten the bridge abutment building in front of it. The location of the rock slope was on the edge of Lake Bratan which is geologically part of the early Holocene volcanic rocks, namely mountain rocks composed of tuff, lava and volcanic breccia. Anisotropic andesite slope was controlled by a discontinuous plane with a certain pattern. Rock Quality Assessment was carried out by the Rock Mass Rating (RMR) method and Slope Mass Rating (SMR) for slope stability evaluation. The planar, tople and wedge potensial slope failure were evaluated. The potential for planar slope failure has a value of SMR 30.18 (Unstable), 57.6 (Partialy Stable) for wedge slope failure potential and 47.6 (Partialy Stable) for tople slope failure potential. The SMR value indicated that the rock slope requires engineering threatment to become stable.
Pungut, S Widyastuti, E Suhartanto
Iop Conference Series: Earth and Environmental Science, Volume 930; https://doi.org/10.1088/1755-1315/930/1/012014

Abstract:
Besides accommodating rainfall-runoff, the drainage channel of the Dukuh Menanggal area in Surabaya also accommodates domestic wastewater. The objective of developing the function is to degrade domestic wastewater pollution that flows into the drainage channel. The wetland is applied in the drainage channel with coarse sand media, Caladium (Caladium), and Water lettuce (Pistia stratiotes L) plant according to land size planning based on existing discharge, detention time, the porosity of the planting medium, and the root zone of the applied plants. The observed properties of domestic wastewater were Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), and detergents. The result is that the treatment of domestic wastewater passes through the artificial wetland in the drainage channel. The constructed wetland can reduce the contamination content of domestic wastewater for the parameters of BOD, COD, and detergents with efficiency levels of 46%, 61.8%, and 69%, respectively.
D Situmorang, R E Arhatin, J Lumban-Gaol
Iop Conference Series: Earth and Environmental Science, Volume 944; https://doi.org/10.1088/1755-1315/944/1/012036

Abstract:
The land surface in Jakarta Province is thought to have experienced relatively continuous subsidence because of natural processes and artificial activities. This research was carried out to evaluate the rate of land subsidence in Jakarta Province. Based on this research, it can be shown from the Sentinel-1A satellite images that there has been landed subsidence. The data used are two pairs of Sentinel-1A Single Looking Complex (SLC) images acquired in 2019 and 2020. The data was processed using the DInSAR method to examine the rate of land subsidence. The results show that the land subsidence rate in Jakarta Province during the 2019-2020 period varies from 1.8 cm to -10.7 cm/year. The literature data results in 2016 experienced a decrease in land subsidence with a significant value of -12.6 cm/year. Land subsidence in 2017 averaged -1.8 cm/year. The land subsidence results from 2019 to 2020 have a value that tends to be lower than in 2016 of - 3.62 cm/year. Land subsidence occurs mostly in coastal areas and near estuaries caused by the nature of alluvial deposition materials. It has caused damages to road infrastructure in several regions of Jakarta Province, such as Mutiara Beach, West Cengkareng, and Pademangan.
T V Ibragimova, Ye Yu Tumanova, Z V Sterlenko, N V Yeriomina, A A Rozhnova, Kh S Budaev, M A Abakarov
Iop Conference Series: Earth and Environmental Science, Volume 931; https://doi.org/10.1088/1755-1315/931/1/012018

Abstract:
In the development of the oil and gas complex, the improvement of methods for studying the patterns of distribution of hydrocarbon deposits is of particular importance. At the same time, scientific research can be carried out in different directions. These include increasing the resolution of various methods of borehole and areal geological and geophysical studies of lithological features and oil-and-gas content, developing new approaches to interpreting well logging results, analyzing the productivity of poorly studied regions and areas of the section, identifying low-amplitude folds and non-anticlinal deposits. The development of hydrocarbon deposits in the Stavropol Territory has been going on for many decades, which has led to reduction of deposits within medium and large anticlinal uplifts. Therefore, the main attention is now paid to the prospect for low-amplitude and small-size uplifts and traps of the non-anticlinal type, which include lithological and stratigraphic ones.
I Setiadi, J Widodo, T B Nainggolan
Iop Conference Series: Earth and Environmental Science, Volume 944; https://doi.org/10.1088/1755-1315/944/1/012034

Abstract:
Topex is a geodetic satellite to map earth surface topography with very high precision. Two types of data can be obtained from Topex satellite, namely topographic and free-air gravity field data. Then, it is processed to produce Bouguer anomaly which will be used to interpret the subsurface geology of a specific study area. The purpose of this study was to delineate sedimentary basin and basement configurations. The methods used in this research are spectral analysis, band-pass filter and 2D forward modeling. The spectral analysis results show the average thickness of the sedimentary rocks is 2.1 km. Sub-basin patterns based on the band-pass filter are 7 sedimentary sub-basins and the structural patterns found in this area comprise basement height, graben and fault. The 2D modeling results show that the bedrock in the eastern part of the Central Sumatra basin is granitic with a mass density value of 2.67 gr/cc and the layer above the bedrock is interpreted as a sedimentary rock with a mass density value of 2.35 gr/cc. Analysis of the gravity data shows significant results as initial information to delineate sedimentary sub-basin and regional structure to enhance information to the next stage of hydrocarbon exploration.
K Triana, K Dwiana, D S Supramono
Iop Conference Series: Earth and Environmental Science, Volume 944; https://doi.org/10.1088/1755-1315/944/1/012043

Abstract:
Long-term ocean deoxygenation could lead to decline biological productivity and alter biogeochemical cycles. Ocean warming contributions to ocean deoxygenation are reasonably understood, however, there is a challenge to reveal the gaps about other modifying factors to explain different regional patterns and predicts the condition in the coming century. This study aimed to identify the deoxygenation areas in the eastern Indonesian waters, understand the variability of physical and chemical parameters as the deoxygenation drivers, and investigate the correlation between parameters. In-situ and satellite-derived data from 1995 to 2020 were analyzed with statistical methods and remote sensing techniques to enhance deoxygenation measures in higher spatial and temporal resolutions. Our findings revealed that significant deoxygenation was detected around the Arafura Sea. The oxygen minimum zone extended at 133.5° – 136.8° E in the depth of 350 – 1,000 meters, with less than 20 mmol/m3 of dissolved oxygen concentration. Nitrate, phosphate, and temperature were identified to have a strong reversed relationship with the oxygen concentration in the study area. This study also developed multiple regression model algorithms to estimate the oxygen concentration in specified depths.
N O Yonatika, N Widiasih, M Hamidah, M D Nurhakim, H Budiarto, D M C Bintang, L M I Sani, D F Lestari, W A Setyaningsih, B Subhan, et al.
Iop Conference Series: Earth and Environmental Science, Volume 944; https://doi.org/10.1088/1755-1315/944/1/012028

Abstract:
Phyllidiella pustulosa are brightly coloured gastropod molluscs frequently found in coral reefs of the tropical Indo-Pacific. Phyllidiella pustulosa is widely distributed in Indonesia, such as Seribu Island, North Sulawesi, West Papua, and Halmahera. Based on the genetic characteristics of an individual’s DNA sequence, differences between species can be identified. In this paper, we would like to provide the molecular analysis and phylogenetic relationship among nudibranchs from Indonesian waters. Identification was made by measuring the genetic distance between species. The phylogenetic tree reconstruction was made using the Kimura 2-parameter model with 1000 times bootstrap with neighbor-joining and maximum likelihood method. There is 46 DNA Sequence obtained from 4 different regions (Seribu Island, Halmahera, North Sulawesi, and West Papua). The genetic distance of West Papua and Halmahera has the smallest value among other populations, which is between 0.0051-1.4629, compared to the population in Halmahera. The phylogenetic tree also shows populations from West Papua and Halmahera are on the same lineage, indicating that the population in West Papua and Halmahera had the closest relation. The study suggested that North Sulawesi, Halmahera and West Papua have genetic mixing of the same region, which is distinctive from Seribu Island.
Iop Conference Series: Earth and Environmental Science, Volume 931; https://doi.org/10.1088/1755-1315/931/1/011001

Abstract:
From March 24 to 25, 2021, in Khanty-Mansyisk, the IV INTERNATIONAL YOUTH APPLIED RESEARCH FORUM “OIL CAPITAL” was held by the government of the Khanty-Mansyisk Autonomous Okrug-Yugra with the support of the Russian National Committee of the World Petroleum Council (the RNC of WPC). Organizers Government of the Khanty-Mansiysk Autonomous Okrug - Ugra; Council of Young Scientists of the Russian Academy of Sciences. Co-organizers Russian National Committee of the World Petroleum Council; Federal State Budgetary Educational Institution of Higher Education “Ugra State University”; Union “Chamber of Commerce and Industry of the Khanty-Mansiysk Autonomous Okrug - Ugra”; ANO “Intellectual Club”. With the support and participation of the following structures and organizations: Federal State Budgetary Educational Institution of Higher Education “St. Petersburg Mining University”; ANO “International Competence Center in Mining Engineering Education” under the auspices of UNESCO”; National Association of Oil and Gas Services; Union of Oil and Gas Producers of Russia.
Iop Conference Series: Earth and Environmental Science, Volume 931; https://doi.org/10.1088/1755-1315/931/1/011002

Abstract:
All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: OpenConference submission management system: program committeeNumber of submissions received:21Number of submissions sent for review:20Number of submissions accepted:20Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100):95,24Average number of reviews per paper:3Total number of reviewers involved:10Any additional info on review process:-Contact person for queries:Kaplan Mikhail Alexandrovich E-mail: [email protected] / [email protected] Tel.: +79031927386Forum Scientific Secretary
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