Analyzing Indonesia’s NCICD Project to Stop the Capital City Sinking

Widodo, Aris Slamet

doi:10.26618/ojip.v7i2.769

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…Samarinda which is an area prone to changes in natural conditions resulting in high intensity of flood disasters and poor city drainage, coupled by the increasing Mahakam river water discharge, is considered to be the main cause of floods in the city of Samarinda [5]. Although different from the capital city of Jakarta, which almost every year has a flood problem with the main cause a combination of two main factors which are global climate change and land subsidence [7].…”

Section: Resultsmentioning

confidence: 99%

Sister city bottom up collaborative model plan as a major flooding mitigation in Samarinda

Syahrin¹,

Rukmana²,

Rachman³

et al. 2019

Proceedings of the Proceedings of 1st Workshop on Environmental Science, Society, and Technology, WESTECH 2018, December 8th, 2

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Flooding is a big homework for the City Government of Samarinda. Flood problems in Samarinda often occur when the rainfall is high even though the duration of the rain is relatively short. This article aims to analyze the sister city cooperation framework model that can be carried out by the city government of Samarinda in dealing with flood problems. The research question in this study is how to design an effective sister city cooperation model and can be used as an attempt to resolve flood problems in Samarinda City. The data collection process in this study used qualitative methods with a literature study approach and interviews with community leaders. The cooperative system framework of the bottom-up model is designed based on the complex interdependence theory by Joseph Nye and Robert Keohane, the authors argued that the collaboration between the Samarinda City Government and transnational actors, supported by active participation from local communities, can be a good collaboration in creating effective solutions related to flood mitigation in Samarinda. The author found that the involvement of the community through socialization and education about the importance of maintaining river ecosystems, mutual cooperation activities in the form of cleaning waterways and drainage, and structuring and relocating residential areas located on the riverbanks, are aspects that play important roles in the process of resolve flood Samarinda City.

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Section: Resultsmentioning

confidence: 99%

Sister city bottom up collaborative model plan as a major flooding mitigation in Samarinda

Syahrin¹,

Rukmana²,

Rachman³

et al. 2019

Proceedings of the Proceedings of 1st Workshop on Environmental Science, Society, and Technology, WESTECH 2018, December 8th, 2

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“…Using the combination of sea level rise and land subsidence variables in economic and risk estimation, Jakarta is projected to face a USD 521 million loss risk caused by flooding in 2030 (Widodo 2017). The Indonesian government has already joined and signed the Paris Agreement, an embodiment in the international community to minimize the GHG effect and reduce climate change.…”

Section: Significant Threat Of Combined Sea Level Rise and Land Subsidencementioning

confidence: 99%

“…Each government of the cities that face land subsidence and sea level change should ensure that the City Spatial Planning is wellimplemented. Rules on groundwater extraction, which is recognized as the major cause of land subsidence, have to be obeyed comprehensively (Widodo 2017). The public and stakeholders alike should be more aware of the process and drivers of sea level rise and land subsidence, as well as the economic impacts they can receive.…”

Section: Significant Threat Of Combined Sea Level Rise and Land Subsidencementioning

confidence: 99%

Sea Level Rise in Indonesia: The Drivers and the Combined Impacts from Land Subsidence

Triana

Wahyudi

2020

AJSTD

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Sea level changes play an important role as an indicator of climate change. However, without climate change, the sea level itself shows strong regional patterns, both in space and time, that could deviate significantly from global averages. The spatial variability of sea level changes in Indonesia can be divided based on its drivers, i.e., climatic and seasonal weather-driven and non-climatic and geological-driven. Seasonally, the sea level in Indonesia is generally high in northwest monsoon and low in southeast monsoon. Nevertheless, there is a possibility of extreme natural phenomenon influences that generate anomalies and a thermosteric process that also affects the sea level. On the non-climatic and geological theory, the uniqueness of the tectonic setting in Indonesia will create spatial variations in regional sea levels, as both static and dynamic changes in a long period of time. Land subsidence is also often regarded as a significant contributor to the rise of relative sea level in coastal environments. Combined with the rise in sea level, land subsidence will escalate coastal flooding risks, contribute to shoreline retreat, and be further aggravated by anthropogenic forces such as groundwater extraction and land development. This scientific review will summarize the spatial variation of sea level rise in Indonesia, examines the underlying drivers that control it, and provides an overview of the combined sea level rise and land subsidence as a significant threat in Indonesia.

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“…Several studies have been undertaken to analyze various aspects of this project. One evaluated the project in the grand scheme of things [3], another focused on watershed management studies for flood mitigation [4], and the other studied sea defense structures related to this project [5]. However, those studies did not consider one significant aspect that is very useful when investigating the sea dike structure, which is the wave run-up phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Wave Run-up to Identify the Most Effective Design of Jakarta’s Outer Sea Dike

Magdalena¹,

Sutjianto²,

Sunaryan³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The National Capital Integrated Coastal Development (NCICD) is a construction megaproject around Jakarta Bay targeted environmental revitalization and flood mitigation. One of the main projects of NCICD is to develop the Jakarta's outer sea dike to prevent future disasters triggered by the increase of the sea level around Jakarta Bay. In this paper, we aim to assess and optimize the design of Jakarta's outer sea dike by investigating the wave run-up phenomenon, which is measured as the maximum vertical extent of wave uprush on a structure above the still water level. We used the Non-linear Shallow Water Equations (NSWE) as our mathematical model to simulate this phenomenon. The NSWE model was solved numerically using the finite volume method on a staggered grid with a wet-dry procedure to obtain accurate wave run-up height. To validate our numerical scheme, we conducted benchmark tests against a publicized experimental dataset, resulting in a good agreement between the numerical and experimental data, which confirms the robustness and accuracy of our model. We then simulate the wave run-up over three different sea dike profiles: single slope, single berm, and single berm with rocks. Our study shows that among the cases we investigated, the single berm with rocks is the most effective design of the sea dike as even small-sized rock units can significantly reduce the wave run-up height.

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Analyzing Indonesia’s NCICD Project to Stop the Capital City Sinking

Cited by 6 publications

References 8 publications

Sister city bottom up collaborative model plan as a major flooding mitigation in Samarinda

Sister city bottom up collaborative model plan as a major flooding mitigation in Samarinda

Sea Level Rise in Indonesia: The Drivers and the Combined Impacts from Land Subsidence

Numerical Study on Wave Run-up to Identify the Most Effective Design of Jakarta’s Outer Sea Dike

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