Optimized Jakarta outer sea dike plan of NCICD program to wave run-up of a possible Anak-Krakatau tsunami

Authors

  • Huda Bachtiar Puslitbang SDA
  • Riam Badriana Lab Math-Indonesia
  • Leo Sembiring Puslitbang-SDA, Kementerian Pekerjaan Umum
  • Didit Adytia Lab Math-Indonesia
  • I Putu Samskerta Puslitbang-SDA, Kementerian Pekerjaan Umum
  • Andonowati Andonowati Lab Math-Indonesia
  • E. van Groesen Lab Math-Indonesia

DOI:

https://doi.org/10.32679/jsda.v13i1.170

Keywords:

tsunami, outer sea dike, Jakarta Bay, NCICD Program

Abstract

The infrastructural plans in the Jakarta Bay to reduce risks of flooding in Jakarta city comprise a large sea dike that encloses a retention lake. Part of the planned dike has the shape of the iconic Garuda bird. This shape is based on NCICD Stage-B Master Plan, where the form shape has not been tested on hydraulic perspective. Therefore, testing of wave run-up has been investiagated to find the optimum form of the Garuda Shape. The simulation of wave run-up uses Hawassi Model, where the model is governed by Boussinesq wave equation with considering wave-wave interaction. This paper shows that if in the future an explosion of Anak Krakatau will occur with strength 1/4th of the original Karkatau 1883 explosion, wave crests of 11m and troughs of 6m may collide against the bird’s head. As an alternative example, a more optimized design of the dike is constructed that reduces the maximal wave effects considerably.

References

Adytia D, 2008, Tsunami Simulation in Indonesia's Areas Based on Shallow Water Equation and Variational Boussinesq Model Using Finite Element Method. Master Thesis, ITB.

Adytia D, E. van Groesen, 2010, Variational BOussinessq Model for Simulation of Coastal Waves and Tsunami, Proceeding of the 5th (APAC 2009), ISBN-13 978-981-4287-96-8, pp. 122-128.

D. Adytia, M. Woran, E. van Groesen, 2012, Anak Krakatau Explosion Effect in Jakarta Bay Proceedings Basic Science International Conference 2012, Malang Indonesia, K1-5, ISBN 978-979-25-6033-6.

Deltares report, 2014, Master Plan National Capital Integrated Coastal Development, Boundary condition, Section 6, Tsunami quick scan, in INA556-3 C1.3a (INA556-3/agui/105).

HAWASSSI Variational Boussinesq Model (VBM), see www.hawassi.labmath-indonesia.org

Lia Yuliawati, Nugrahinggil Subasita, Didit Adytia, Wono Setya Budhi, 2015, Simulation of Obliquely Interacting Solitary Waves with A Hard Wall by using HAWASSI-VBM and SWASH Model, Proceedings SEAMS

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Published

2017-12-27

How to Cite

Bachtiar, H., Badriana, R., Sembiring, L., Adytia, D., Samskerta, I. P., Andonowati, A., & Groesen, E. van. (2017). Optimized Jakarta outer sea dike plan of NCICD program to wave run-up of a possible Anak-Krakatau tsunami. JURNAL SUMBER DAYA AIR, 13(1), 1–10. https://doi.org/10.32679/jsda.v13i1.170

Issue

Vol. 13 No. 1 (2017)

Section

ARTIKEL

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