Fractal Characteristics of Geomorphology Units as Bouguer Anomaly Manifestations in Bumiayu, Central Java, Indonesia

Nur, Andi Agus; Syafri, Ildrem; Muslim, Dicky; Hirnawan, Febri; Raditya, Pradnya P; Sulastri, Murni; Abdulah, Fikri

doi:10.1088/1755-1315/29/1/012019

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…Stream network and elevation data can be obtained by extracting Digital Elevation Model (DEM) and digitizing topographic maps. According to [3], [7], [8], remote sensing and Geographic Information System (GIS) method can be used to extract stream network and geological surface features.…”

Section: Methodsmentioning

confidence: 99%

Quantitative Geomorphology of Cipancar Watershed and the Implication for Flood Risk

Raditya Rendra

2023

GEOMATE

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Cipancar watershed is located in Sumedang, West Java, Indonesia. The purpose of this research was to determine the flood risk of the Cipancar watershed in Sumedang area through quantitative geomorphology approach, namely watershed morphometry. Elevation and stream network data used were obtained from a digital elevation model and topographic map using Map Info and Global Mapper software. The morphometric parameters used in this research consist of drainage density, drainage texture, Form factor, ratio of elongation, and ratio of circularity. The research area consists of hills, elongated hills, volcanic cone, and plains. It also consists of radial, subdendritic, and subparallel drainage pattern with the dominance of quaternary volcanic rocks. Cipancar watershed has 15 subwatersheds with predominantly very coarseintermediate texture and very elongated-elongated basin shape. Only the Cpc_09 and Cpc_10 watersheds have oval-circular basin shape. Rainfall conditions that are not too high do not have a significant effect on the potential for flooding. The research area can be classified into very low to moderate flood risk. The very lowlow flood risk is located in the upstream of the Cipancar watershed such as Leles, Cikandung, Leuwigoong, Cicalengka, and South Sumedang districts; and some areas of Kadungora, Cibiuk, Balubur Limbangan, and Selaawi districts. The low-moderate flood risk is located in the middle to downstream of the Cipancar watershed such as some areas of Kadungora, Cibiuk, Balubur Limbangan, and Selaawi districts. The results indicate that the quantitative geomorphology can be used to determine the flood risk in a particular area.

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Section: Methodsmentioning

confidence: 99%

Quantitative Geomorphology of Cipancar Watershed and the Implication for Flood Risk

Raditya Rendra

2023

GEOMATE

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“… Comparing the porosity measurement results from the calculation of fractal dimension with laboratory [14].  The correlation between sub-surface geological conditions and morphological characteristics [15].  The relationship between earthquakes and rock grains' size, the correlation between folds, topography, and fractures, the correlation between fracture concentration and the productive geothermal field [16].…”

Section: Fractalmentioning

confidence: 99%

The Comparative of Morphological and Gravity Anomaly Lineaments in West Progo Mountains, Indonesia The Comparative of Morphological and Gravity Anomaly Lineaments in West Progo Mountains, Indonesia

Winarti

Sukiyah

Syafri

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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In Yogyakarta Special Region, the West Progo Dome comprises the Nanggulan Formation and Old-Andesite Formation as the oldest formations. The Nanggulan Formation is composed of sedimentary rock with a density of 2.5 g/cm3, while the Old-Andesite Formation is composed of volcanic rock with a density of 2.7 g/cm3. Dome morphology is formed by vertical endogenous energy that radiates SE-NW, NE-SW, and E-W. This study aims to describe the correlation between the hill lineaments and gravity anomaly lineaments in the Nanggulan Formation and Old-Andesian Formation. Identification of the hill lineament uses Shuttle Radar Topography Mission (SRTM), while the gravity anomaly lineament uses gravity anomaly map. The standard used in the gravity survey concerning the American Society for Testing and Materials Standard (ASTM). The measurement system utilizes a looping distance of 200-350 meters. The lineaments of the hill and gravity anomaly show the same direction SE-NW. Both lineaments are calculated by fractal dimension (D) utilize the box-counting method. The result of overlaying the two lineaments' fractal dimension produces the same value and the different value. The same fractal dimension value (D=0.81-1.20) indicates whether the hill lineament and gravity anomaly lineament are correlated, while the different fractal dimension values indicate that the two lineaments are not correlated. The fractal dimension value is different due to small intrusions and faults.

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Assessment of drainage network analysis methods to rank sediment yield hotspots

Sepehri

Ghahramani

Kiani-Harchegani

et al. 2021

Hydrological Sciences Journal

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This paper aims to test different methods used for assessing the indices of sediment yield to identify hotspots and rank sediment yield hotspots. This process includes the assessment of the Entropy Weighting (EW), Fractal Dimension (FD), Slope Length (SL) gradient, and Sediment Connectivity (SC) methods. The indices at different sub-catchment levels were method showed that 8, 10, 4 and 9 sub-catchments based on the degree of susceptibility obtain the highest results considering the results of FD, EW, SL and SC with an output of EPM model, respectively. The results show that EW and SC can achieve greater performance than FD and SL methods in identifying sediment production hotspots.

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Fractal Characteristics of Geomorphology Units as Bouguer Anomaly Manifestations in Bumiayu, Central Java, Indonesia

Cited by 5 publications

References 1 publication

Quantitative Geomorphology of Cipancar Watershed and the Implication for Flood Risk

Quantitative Geomorphology of Cipancar Watershed and the Implication for Flood Risk

The Comparative of Morphological and Gravity Anomaly Lineaments in West Progo Mountains, Indonesia The Comparative of Morphological and Gravity Anomaly Lineaments in West Progo Mountains, Indonesia

Assessment of drainage network analysis methods to rank sediment yield hotspots

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