Progress of Coastal Line Rehabilitation After the Indian Ocean Tsunami Around Banda Aceh Coasts

Syamsidik, Syamsidik; Iskandar, Adhitya; Rasyif, Teuku Muhammad

doi:10.1007/978-4-431-55117-1_13

Cited by 7 publications

(6 citation statements)

References 7 publications

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“…Dari 149 ha areal tambak yang rusak, hanya 28 ha (19%) yang berhasil pulih di kawasan ini setelah 10 tahun tsunami (Fahmi et al, 2017). Rendahnya laju pemulihan sektor perikanan tambak ini dikarenakan sebagian tambak mengalami kerusakan besar (erosi) dan juga faktor salinitas (Syamsidik et al, 2015). Proses pemulihan pada sektor pertanian khususnya sawah berbanding terbalik dengan yang terjadi pada tambak.…”

Section: Lokasi Studiunclassified

“…Generasi muda yang menjadi responden tidak terlalu menyadari perubahan garis pantai yang terjadi setelah dilanda tsunami. Pemantauan tahapan proses pemulihan garis pantai di lokasi studi dapat dirujuk dalam Syamsidik, Iskandar, & Rasyif (2015).…”

Section: Hasilunclassified

“…Jenis vegetasi yang direkomendasikan adalah cemara laut dibandingkan dengan mangrove. Berdasarkan pengalaman, jenis mangrove banyak mengalami gagal tumbuh di lokasi ini (Syamsidik et al, 2015). Spesies Casuarina equisetifolia (cemara laut) umumnya dapat tumbuh di pantai berpasir dengan dukungan debit sungai sekitar seperti di Lembah Geuruete (Benazir et al, 2017) dan di Teluk Pacitan (Muhari et al, 2012).…”

Section: Hubungan Kesiapsiagaan Masyarakat Dan Dan Potensi Tsunamiunclassified

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Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Benazir¹,

Syamsidik

Idris

2022

JTH

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The 2004 Indian Ocean Tsunami, which devastated the coasts of Aceh and Nias, revealed that the event was a mega-hazard category. Following the disaster, a new era in the development of tsunami mitigation throughout the archipelago began. Nonetheless, given the impact of the two tsunamis that occurred at the end of 2018, achieving mitigation within 17 years poses a unique challenge and high priority. The relationship between tsunami-prone areas and community preparedness has become a crucial factor in achieving regional disaster resilience. The objective of this research is to provide a regional assessment of tsunamis risk as well as community preparedness for future tsunami. The coast of Teluk Ulee Lheue, Aceh Besar, was chosen as the location for the assessment as a role model. The research method consists of tsunami mathematical modeling considering the impact caused by the magnitude of earthquakes 8.2, 9.15, and 9.2. The Nonlinear Shallow Water Equation (NSWE) model was used in the simulation, which was discretized using the explicit leap-frog Finite Difference Method. Field activities were included not only to collect topography and land use data but also to gather information and community response. The data was provided directly from the local community through the completion of a questionnaire, with a total of 150 respondents being evaluated. The findings of this study reveal that the consequences of the tsunami inundation remain quite considerable, even for a smaller-scale earthquake than the previous 2004 event. In general, the degree of community preparedness seems to be quite high, especially in terms of tsunami awareness. An improvement in disaster emergencies is required, specifically in the household sector. However, with a high degree of community preparedness, it would be essential to carry out individual evacuations rapidly. Keywords: tsunami hydrodynamics, numerical simulation, run-up, community preparedness, environmental social

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Section: Lokasi Studiunclassified

Section: Hasilunclassified

Section: Hubungan Kesiapsiagaan Masyarakat Dan Dan Potensi Tsunamiunclassified

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Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Benazir¹,

Syamsidik

Idris

2022

JTH

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“…Irham et al, (2021) studied coastal accretion and erosion from 2004 to 2017 around Lampudo beach and found a remarkable shoreline retreat in 2009 where breakwater, seawall, and port were rebuilt after the 2004 tsunami event. Syamsidik et al, (2015) revealed that Ujong Pancu and Ulee Lehue coasts recover naturally without artificial construction and other restoration projects.…”

Section: Introductionmentioning

confidence: 99%

Study of Coastal Morphological Changes by Tsunamis in Aceh (Indonesia) Using Satellite Images

Faiez,

Fan

2023

J. Geoscience Eng. Environ. Technol.

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This study identified the coastal morphological changes caused by tsunamis that occurred in Banda Aceh, Lampuuk-Lhoknga, and Meulaboh. The morphology of study areas was drastic changes during the 2004 tsunami and followed by the 2005, 2010, and 2012 tsunamis. Time series of Landsat satellite images and tidal data were collected during the period 1988-2020 and analyzed using DSAS (Digital Shoreline Analysis System) analysis method. The main aim of this study is to monitor recovery, trend development, and controlling factors of the coastal morphology before and after fifteen years of the 2004 tsunami. In Banda Aceh, the shoreline shift in the 2004-2005 period shows an inland retreat trend, with an average NSM (net shoreline movement) value of -644.69 m. The EPR (end point rate) value for the 2005-2020 period reached 21.31 m/year, but the recovery of the 2020 shoreline position has not returned to the original position before the 2004 tsunami. The significant shoreline retreat and land loss with an average NSM value of -40.59 m in the period 2004-2005 occurred on the Lampuuk and Lhoknga beaches. The 2020 shoreline of Lampuuk beach underwent a recovery with accretion. Nevertheless, Lhoknga beach is still experiencing apparent erosion. The recovery of the Meulaboh east coast was fast as evidenced by the development of the annual growth of spit features. The coastal morphological changes are influenced by complex interactions between natural and anthropogenic processes. The 2004 tsunami was the major factor to change the coastal morphology in the study areas.

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“…The structural mitigation facilities that were developed between 2005 and 2010 include four escape buildings, one tsunami museum that also functioned as a tsunami escape building, and several escape routes. A 7 km revetment structure was constructed between 2006 and 2010 to reshape the city's coastline and to prevent further coastal erosion problems (Syamsidik et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Assessing the tsunami mitigation effectiveness of the planned Banda Aceh Outer Ring Road (BORR), Indonesia

Syamsidik¹,

Tursina

Suppasri

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Abstract. This research aimed to assess the tsunami flow velocity and height reduction produced by a planned elevated road parallel to the coast of Banda Aceh, called the Banda Aceh Outer Ring Road (BORR). The road will transect several lagoons, settlements, and bare land around the coast of Banda Aceh. Beside its main function to reduce traffic congestion in the city, the BORR is also proposed to reduce the impacts of future tsunamis. The Cornell Multi-grid Coupled Tsunami Model (COMCOT) was used to simulate eight scenarios of the tsunami. One of them was based on the 2004 Indian Ocean tsunami. Two magnitudes of earthquake were used, that is, 8.5 and 9.15 Mw. Both the earthquakes were generated from the same source location as in the 2004 case, around the Andaman Sea. Land use data of the innermost layer of the simulation area were adopted based on the 2004 condition and the land use planning of the city for 2029. The results of this study reveal that the tsunami inundation area can be reduced by about 9 % by using the elevated road for the earthquake of magnitude 9.15 Mw and about 22 % for the earthquake of magnitude 8.5 Mw. Combined with the land use planning 2029, the elevated road could reduce the maximum flow velocities behind the road by about 72 %. Notably, the proposed land use for 2029 will not be sufficient to deliver any effects on the tsunami mitigation without the elevated road structures. We recommend the city to construct the elevated road as this could be part of the co-benefit structures for tsunami mitigation. The proposed BORR appears to deliver a significant reduction of impacts of the smaller intensity tsunamis compared to the 2004 Indian Ocean tsunami.

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Progress of Coastal Line Rehabilitation After the Indian Ocean Tsunami Around Banda Aceh Coasts

Cited by 7 publications

References 7 publications

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Asesmen Potensi Tsunami Dan Kesiapsiagaan Masyarakat Pesisir: Studi Kasus Teluk Ulee Lheue, Aceh Besar

Study of Coastal Morphological Changes by Tsunamis in Aceh (Indonesia) Using Satellite Images

Assessing the tsunami mitigation effectiveness of the planned Banda Aceh Outer Ring Road (BORR), Indonesia

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