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  • PESAN DAN TANGGAPAN :

    Research WorkShop on Tsunami Modeling and Simulation
    Oleh : LabMath Indonesia
    Senin, 8 Desember 2008 (22:03 WIB) dari IP 125.160.105.224

    Research Work Shop TSUNAMI MODELING AND SIMULATIONS

    *Course week and
    *Project week

    Bandung, 12 – 23 January 2009


    Organized by Laboratorium Matematika Indonesia (LabMath‐Indonesia) in collaboration with
    - Institut Teknologi Bandung, and
    - University of Twente, the Netherlands

    *This activity is a part of KNAW Mobility Programme 07MP11 (Royal Netherlands Academy of Arts and Sciences)*





    AIM AND DESCRIPTION

    Scientists have already a good qualitative view what happens when a land plate suddenly slides over an ocean plate and thereby brings the water above the moving bottom into motion and excites a tsunami. On its way to the coast, the tsunami conserves energy and its amplitude increases when entering the shallower coastal areas. We have seen dramatic effects on the coast when the tsunami runs over land.

    Scientists have made models to translate the qualitative ideas into models and simulations to get quantitative results; many ‘tsunami codes’ exist. Amazingly, when simulation results are compared with field‐observations on the coast, it turns out that often the simulations of wave heights are a factor two or three wrong. We will address several aspects that may lead to errors in the simulations because the modeling is too complicated and not yet well‐understood. We will discuss, and make projects, on the following aspects.

    One topic will be the evolution of water waves, from basic properties such as wavelength and amplitude dependence on depth, to more advanced aspects of inverse modeling to estimate the initial tsunami waveform from measurements at buoys. Another topic will be the wave excitation process: the basic principles and the more difficult modeling of the tectonic plate motion, and the translation of bottom motions into tsunami properties such as initial waveform.

    One topic will deal with the complicated overland flow when the tsunami reaches the coast; we investigate how details of vegetation and buildings influence the run‐up (inundation) height.

    Although this tsunami topic from geo‐science is interesting and relevant in itself, the RWS may be very valuable for participants with different background, because the methods from applied mathematics and the modeling experience are useful for many other areas in science and technology as well.

    In this RWS we aim at a stimulating atmosphere where participants from several disciplines will work together. Except the lecturers, we will also have young students who will contribute to the exercise periods and to the projects. They have been working for some time as junior researcher with an internship at LabMath‐Indonesia on (related) topics to support the research in the KNAW Mobility Programme.


    LECTURERS

    Prof. Dr. Sri Widiyantoro, Institut Teknologi Bandung
    Dr. Hamzah Latief, Institut Teknologi Bandung
    Dr. Deepak Vatvani, TUDelft and Deltares, Netherlands
    Didit Adytia MSc, LabMath‐Indonesia & UTwente
    Prof. Dr. E. Brenny van Groesen, University of Twente, the Netherlands


    PROJECTS

    Below we list the titles and a short description of the project topics.

    Project 1 : TSUNAMI CODES

    The aim is to design and implement a simple tsunami code in 1D above synthetic bathymetry to illustrate the basic properties of amplitude and wavelength changes with changes in depth, and to select well defined conditions (tsunami generation scenario, physical domain and bathymetry) such that tsunami excitation and wave development till close to the shore can be simulated. We will be interested in the effects on the near‐by coasts.


    Project 2 : WAVE GENERATION BY BOTTOM EXCITATION

    If we lift part of the bottom below a layer of fluid, the incompressibility of water will give rise to disturbance of the initially still free water surface. The aim of this project is to find out what the influence is of the bottom excitation on the generated waves.


    Project 3 : INVERSE TSUNAMI MODELING AND SIMULATIONS

    Given data consisting of time signals of surface elevation as measured by buoys at one or more positions, determine as much as possible information about the tsunami excitation process: the bottom profile displacement and the dynamics of the bottom, with the aim to characterize the tectonic plate motions (shape and dynamics).


    Project 4 : BOTTOM EXCITATION FROM SEISMIC DATA

    Another way to extract information about the tsunami excitation process could be to find as good as possible a characterization of the tectonic plate motions (shape, displacement and dynamics) from seismic data. In several stages of complication, we want to develop better insight in the generation process.


    Project 5 : TSUNAMI WAVE AND INUNDATION HEIGHT ON LAND

    This project investigates the tsunami when it has reached the land, centered around the question what the inundation height will be, and most important, how this height depends on the depth gradient of the ocean bottom, and on vegetation (mangroves) and defense measures on the land.


    PROGRAMME LAY‐OUT

    The first week is a Course week, with lectures and exercise classes. This Course week can be attended by maximal 30 participants. At the end of this week, the projects will be introduced and Project groups will be formed. At most 20 participants can continue with these projects, when necessary selected based on their performance during the Course week. This project work will be executed during the whole second week with close guidance by the RWS lecturers and junior LMI researchers. Participants will prepare written and oral presentations of their work. Arrangements for further activities will be made if applicable. After the first week of courses, a visit to BMKG (Badan Meteorologi, Klimatologi dan Geofisika) Jakarta is scheduled, to see the recently inaugurated InaTEWS (Indonesian Tsunami Early Warning System).


    AWARD/CONTINUATION

    For at most three of the best performing participants, a continued activity will be designed. Such a continuation may consist of further study and own research investigations in a specific topic. Working on the topic may include a period of several months as guest of LabMath‐Indonesia in Bandung. During these periods, and as much as possible also during other periods using email for correspondence, tutorial guidance will be provided by one of the lecturers of the RWS. When achievements are good, sooner or later the results will lead to an application for a research grant, to an international publication, and/or to a visit or following a study programme at a university abroad, whatever is possible and desired. The best performing participants will be invited and guided to write a research proposal to be submitted to (inter‐) national funding agencies.



    PARTICIPATION

    Students and staff from state or private universities and staff of governmental organizations can apply for participation. Especially young S1 students in their final year and S2 students are strongly encouraged to participate. To profit from the course, participants should be eager to learn new topics, both the theoretical background as well as the specific applications. In general, basic knowledge of water waves and/or seismology is required. Students with a math, physics, geo‐science or engineering background will be able to enjoy the lectures and projects. Programming skills (Matlab, Maple), will be needed in the execution of most of the projects. The applications will be thoroughly examined, and at most 30 participants will be allowed to participate in the first Course Week and 20 participants in the Project week.



    DEADLINE FOR APPLICATION: 27 December 2008.

    NOTIFICATION OF PARTICIPATION: 5 January 2009.



    Participants who register earlier may receive sooner notification of participation.



    FEE AND SUPPORT

    For participation a fee is requested of Rp. 1.000.000 for registration before 27 December 2008, and Rp. 1.500.000 thereafter. This fee includes the workshop material, lunch and coffee/tea during breaks, and the workshop dinner. Support is given to reduce the fee for young students to Rp. 100.000 and for university staff members to Rp. 500.000.



    VENUE

    First week: P4TK IPA, Jalan Diponegoro no. 12 Bandung 40115

    Second week: LabMath‐Indonesia office, Jalan Anatomi no. 19, Bandung 40191



    REGISTRATION FORM

    Registration is easiest by using the electronic form available from the LabMath‐Indonesia website:

    www.labmath‐indonesia.or.id/Registration/Form.php

    You will be asked to provide the following information: Your name, current position (student / Lecturer University / other), your address, telephone and email‐address. Besides that, you will be requested to upload file documents that consist of your CV, an updated academic record, a letter of motivation that describes in your own words your motivation to participate, and (if applicable) a request for financial support. ALL these documents and all further (email‐) correspondence should be in English. Alternatively, you can provide the details listed above in the main part of an email, with the documents as attachment, and email to: international@labmath‐indonesia.or.id


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