Prediksi Perubahan Garis Pantai Bengkulu (Studi Kasus Pantai Zakat Kota Bengkulu)

Maulana, Fadli Arif; Amri, Khairul; Besperi, Besperi

doi:10.37971/radial.v9i1.216

Cited by 2 publications

(6 citation statements)

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“…Previous research on coastline and coastal erosion has been conducted by Lubis et al [12] in North Bengkulu Regency, which shows the average velocity of coastline change in Padang Betuah is 19.4 m/yr, Lais is 19.9 m/yr, Serangai is 19.5 m/yr, Ketahun is 15.9 m/yr, and in PT Firman Port with a velocity of 15.7 m/yr. Maulana et al [13] showed that the abrasion velocity in Bengkulu City was 2.8 m/yr. Furthermore, the abrasion velocity in Southern Bengkulu covers 6.2 -9.6 m/yr [14].…”

Section: Introductionmentioning

confidence: 99%

“…In Kaur Regency, the abrasion velocity covers 12.6 -18.5 m/yr [15]. Research by Lubis et al [12]; Maulana et al [13]; Oktami [14]; and Supiyati et al [15] showed that the abrasion velocity around Central Bengkulu Regency had experienced abrasion with significant shoreline changes. However, based on the studies conducted, research has yet to discuss changes in the coastline throughout Central Bengkulu Regency.…”

Section: Introductionmentioning

confidence: 99%

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The Combination of Hvsr and Masw Methods with Landsat 8 Imagery to Assess the Changing Shoreline along the Coastal Area of Central Bengkulu

Farid,

Hadi,

Refrizon

et al. 2024

Trends Sci

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The Central Bengkulu Regency possesses a coastline measuring 21.8 km, situated in direct proximity to the Indian Ocean. The heightened wave and ocean current dynamics possess the capacity to induce detrimental effects in the form of coastal abrasion along the coastline. This study conducted an examination of the rate of shoreline changes resulting from coastal abrasion in Central Bengkulu Regency, Bengkulu, Indonesia. Horizontal-to-vertical spectral ratio (HVSR) analysis, multichannel analysis of surface waves (MASW), and Landsat-8 remote sensing were all used in the current investigation. The project gets started with conducting field investigations and measurements of geophysical techniques, including the collection of Landsat-8 satellite imagery spanning the period from 1990 to 2020. Additionally, an examination was conducted on the rate at which the shoreline undergoes changes in velocity. In order to determine the increase in change that occurs along coastlines over a period of several decades, a study was carried out during which Landsat-8 satellite images were analyzed. This study investigates the application of the HVSR technique for assessing the seismic vulnerability of the ground and, additionally, the MASW technique for measuring the shear wave velocity of the coastline’s soil. Both of these methodologies are compared and contrasted with one another in this research. The findings indicated that the mean pace of coastline change in Central Bengkulu Regency was 1.5 m/yr, with the maximum velocity recorded at 4.1 m/yr. This high velocity of shoreline change is correlated with the Vs30 value of MASW measurement and Kg of HVSR measurement, where the subsurface soil structure along the coast of Central Bengkulu Regency from Vs30 measurement shows that it is dominated by stiff soil structure that is susceptible to erosion. Outcomes from the study can inform decision-making processes about safeguards and preventative measures to prevent further coastal degradation. HIGHLIGHTS In this paper, we present a framework using application passive and active seismic method with Landsat 8 for knowing the changing of shoreline coastal area in Central Bengkulu Indonesia This study demonstrated that the high velocity of the shifting shoreline is correlated with Vs30 and Kg values The subsurface soil structure is predominantly composed of stiff soil, and the changing shoreline starts at 1.5 mm/yr, which makes the coast of Central Bengkulu vulnerable to erosion GRAPHICAL ABSTRACT

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Combination of Hvsr and Masw Methods with Landsat 8 Imagery to Assess the Changing Shoreline along the Coastal Area of Central Bengkulu

Farid,

Hadi,

Refrizon

et al. 2024

Trends Sci

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“…Semarang City is Central Java Province's capital, located north of Java Island, at the coast of the Java Sea. Semarang City is one of the cities vulnerable to the threat of changes in the coastline [6]. In [7], According to reports, the coastline of Semarang City has experienced significant changes.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the accretion phenomenon has impacted an area of 165.95 hectares. Since 1972, the city of Semarang has been predicted to experience a shift in coastline and will continue to increase until now [6]. In addition, in [6], it was noted that 49.54 m of the coastline in Semarang City had shifted in 12 years, and there had been a change in the area of 241.9 Ha due to beach reclamation [8].…”

Section: Introductionmentioning

confidence: 99%

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Modeling Coastal Area Change Analysis of Coastal Urban Areas at Semarang City, Indonesia

Manik,

Wijayanto

2023

icdsos

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A coastal area is defined as the boundary between land and sea. Coastal urban areas are susceptible to various hazards that are becoming more severe, such as flooding, erosion, and subsidence due to a mix of man-made and natural factors, including urbanization and climate change. Regardless of the high importance of coastal area monitoring, conducting field surveys is expensive, time-consuming, and geographically limited to non-remote regions. Semarang City is one of the cities in Indonesia that is at risk of changes in its coastline and causes various natural problems. This research aims to estimate changes in the coastal land area in Semarang City. In observing the phenomenon of changes in area in coastal areas in Semarang City, remote sensing technology with Sentinel-2 satellite imagery was used. This research implements and compares the Random Forest (RF) and Support Vector Machine (SVM) machine learning methods in building classification models. From the results of land area in 2019, 2021, and 2023 with the best classification model, namely SVM, information was obtained on an increase in coastal area of 387.94 ha in 2021, then a change in area decrease of 417.32 ha in 2023.

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Prediksi Perubahan Garis Pantai Bengkulu (Studi Kasus Pantai Zakat Kota Bengkulu)

Cited by 2 publications

References 1 publication

The Combination of Hvsr and Masw Methods with Landsat 8 Imagery to Assess the Changing Shoreline along the Coastal Area of Central Bengkulu

The Combination of Hvsr and Masw Methods with Landsat 8 Imagery to Assess the Changing Shoreline along the Coastal Area of Central Bengkulu

Modeling Coastal Area Change Analysis of Coastal Urban Areas at Semarang City, Indonesia

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