Analisis Perubahan Garis Pantai Ujung Blang Kecamatan Banda Sakti Kota Lhokseumawe Pada Tahun 2016-2020

Najah, Safinatun

doi:10.33059/jsg.v5i2.5838

JSG

2022

DOI: 10.33059/jsg.v5i2.5838

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Analisis Perubahan Garis Pantai Ujung Blang Kecamatan Banda Sakti Kota Lhokseumawe Pada Tahun 2016-2020

Safinatun Najah¹

Abstract: Garis pantai adalah garis pertemuan antara darat dan laut, dimana posisinya tidak tetap, mengalami perubahan dari waktu ke waktu. Tujuan penelitian ini untuk mengetahui perubahan garis pantai Ujung Kecamatan Banda Sakti, Kota Lhokseumawe, pada tahun 2016 – 2020. Metode penelitian digunakan dengan memanfaatkan teknologi Sistem Informasi Geografis (SIG) dan penginderaan jauh, Teknik pengumpulan data yang digunakan yaitu studi dokumen, berupa citra satelit yang terdapat pada aplikasi google earth pro. Citra yang … Show more

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2024

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Study of the Impact of Climate Change on Rob Floods in Lhokseumawe City

Hafli,

Mukhlis,

Fasdarsyah

et al. 2024

J. Phys.: Conf. Ser.

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Lhokseumawe City, one of the cities in Aceh, is situated close to a body of water with an area of 181.06 km2. Being in a coastal area, the city is highly susceptible to tidal flooding. The worst tidal flood in the area occurred on 26 May 2021, causing significant damage to residential areas. This study focuses on assessing the impact of sea level rise on the extent of tidal flood inundation and its consequences for residential areas along the coast of Lhokseumawe City. The analysis utilizes numerical modeling simulation carried out with the Delft3D application, specifically Delft3D-FLOW and Delft3D-WAVE. Data is input at several stages to model the inundation, resulting in the production of images, graphs, and animations. Three scenarios are considered for the inundation modeling: existing tidal flood conditions, a 25-year scenario, and a 50-year scenario. The simulation revealed extensive inundation under all scenarios, with the existing conditions covering 402,174 m2, the 25-year scenario covering 579,860 m2, and the 50-year scenario covering 737,188 m2 in the coastal area of Lhokseumawe City. Tidal floods, caused by extreme tidal waves, resulted in the flooding of numerous buildings along the city’s coast due to their high population density. The expanding inundation area poses a significant threat to the economy, especially to those whose livelihoods depend on the tourism sector. Serious measures are imperative to mitigate the expansion of the inundation area and its adverse economic impacts.

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Study of the Impact of Climate Change on Rob Floods in Lhokseumawe City

Hafli,

Mukhlis,

Fasdarsyah

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

The Effect of Climate Change on Coastal Morphology Changes in Lhokseumawe City Area

Hafli,

Fauzan,

Bustami

et al. 2024

J. Phys.: Conf. Ser.

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The city of Lhokseumawe in Aceh is mostly located on the coast and is vulnerable to annual tidal waves, causing coastal settlements to sink. The rising sea levels in Indonesia, as observed by the IPCC using the TOPEX/POSEIDEN satellite, have reached 7 mm/year. A study was conducted to assess the impact of tidal waves exacerbated by sea level rise on changes in coastal morphology over 25 and 50 years. The study utilized the Delft3D numerical simulation method with various input data such as Topographic Data, bathymetry, tides, discharge, sediment, and waves. The results of the Delft3D modeling showed that erosion is slightly greater in the 25 and 50-year scenarios, with an average minimum erosion of about 12 m and a maximum erosion and retreat of about 18 m. However, in the 50-year scenario, there were points along the coast where sedimentation occurred, leading to the advancement of the coastline by about 36 m. These dynamic morphological changes in the coastal area of Lhokseumawe highlight the need for a coastal protection plan to address this vulnerability.

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Analisis Perubahan Garis Pantai Ujung Blang Kecamatan Banda Sakti Kota Lhokseumawe Pada Tahun 2016-2020

Cited by 2 publications

References 0 publications

Study of the Impact of Climate Change on Rob Floods in Lhokseumawe City

Study of the Impact of Climate Change on Rob Floods in Lhokseumawe City

The Effect of Climate Change on Coastal Morphology Changes in Lhokseumawe City Area

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