M QISTYAN PURWA PUTERA Dosen Pembimbing: Kriyo … - presentation.pdf · E. Ngulung kulon 4.83 F....
Transcript of M QISTYAN PURWA PUTERA Dosen Pembimbing: Kriyo … - presentation.pdf · E. Ngulung kulon 4.83 F....
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M QISTYAN PURWA PUTERA
4310100065
Dosen Pembimbing:
Kriyo Sambodho ST. M.Eng, PhD
Dr. Ir Wahyudi, M.Sc
*
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Source: “Sunday Mainichi” Special Issue
Miyako
Tsunami津波
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*
1.•Bagaimana mencari parameter gempa
tektonik yang menimbulkan tsunami?
2.•Bagaimana mencari ketinggian
gelombang tsunami di garis pantai?
3.•Bagaimana memodelkan tsunami
dengan bantuan perangkat lunak?
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*
1.•Mengetahui dimensi parameter gempa
yang dapat menimbulkan tsunami
2.•Mengetahui ketinggian gelombang
tsunami di garis pantai
3.•Memodelkan tsunami tersebut dengan
bantuan perangkat lunak
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*Mulai
Studi Literatur dan
Software
Pengumpulan Data :
• Data Bathymetri
• Data Topografi
• Data Koordinat Episentrum dan
Parameter Sesar
Pemodelan Numerik
Setup :
• Set up parameters
• Intial Condition
• Wave Propagation
• Running Permodelan
A B
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Sesuai dengan
perhitungan manual?
Analisa Hasil
Kesimpulan
Penyusunan Laporan
Selesa
i
Analisa Hasil Keluaran Software
• Tinggi Gelombang
• Penjalaran Gelombang
A B
TIDAK
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*Tsunami Simulation
1.Submarine Quake Model
(Equation)
2.Ocean Topography (Bathymetry)
3.Hydrodynamic simulation
(Tsunami Propagation)
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*
1.Data Gempa
2.Data Bathymetry
3.Initial Condition
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*Data XYZ Peta Daerah Acuan Besar
*GEBCO (General Bathymetric Chart of the
Oceans)
*Jarak antar grid sebesar 1000m
*Data yang didapat berupa data Longitude (X),
Lattitude (Y), dan kedalaman (Z)
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*Data XYZ Peta Daerah Acuan Kecil
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*
*BMKG Jawa Timur
*Historical Gempa Jawa Selatan 1994-
2004
*Data berupa skala magnitude dalam
satuan Richter
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NO. LINTANG BUJUR MAGNITUDE
1 -10.93 116.15 5.1
2 -8.75 114.7 5
3 -8.36 113.19 5.2
4 -9.75 112.8 5
5 -9.34 113.06 7.8
6 -9.49 113.06 5.1
7 -9.50 112.88 5.2
8 -9.44 113.01 6
9 -9.43 112.95 5.2
10 -9.1 114.45 5
11 -6.93 111.25 4.9
12 -8.76 112.72 4.7
13 -9.50 115.35 5.2
14 -9.14 114.3 6.1
15 -10.41 112.53 5.5
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*
1. Simulasi Monte Carlo
2. Seismic Moment
3.Moment Magnitude
4. Parameter Gempa
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*Berdasarkan (Paul A. 1995) besarnya Seismic Moment
adalah sebagai berikut:
* (3/2 . magnitude + 16.1)
* Mo = 10
*ket:
*Mo = Seismic Moment
*Magnituda = Besarnya Magnituda (Skala Richter)
*Seismic moment. (Hanks and Kanamori ,1979)
M = 2/3 * log (Mo) – 10.7
*ket:
*Mw = Moment Magnitude
*Mo = Seismic Moment
Mw = 7.833
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*
Parameter-parameter Nilai
1. Epicenter (Lat,Long)
2. Focal Depth
3. Surface Rupture Length
4. Downdip Rupture Width
5. Dislocation (slip)
6. Strike direction (θ)
7. Dip angle (δ)
8. Rake (slip) angle (λ)
112.06°S ; 10.48°E.
15 km
176.3681 km
31.37329 km
9 m
99 degree
83 degree
90 degre
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200 250 300 350 400 450 500100
150
200
250
300
350
400
Horizontal displacement
Vertical displacement
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*
1.SET UP MODEL
2.Pemilihan Metode
3.Hasil keinggian Gelombang
4.Tampilan/ visualisasi
5.Validasi
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No Parameter Value
1 Module Hydrodynamic Only
2 Bathymetry Bati.bat
3 Simulation Period
12/2/2010 12.00.00 -
12/2/2010 12.53.20
4 Time step 16s
5 No. Of Time Steps 3200
6 Initial Surface Level 0.001
7 Result file HD01.dfs2
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*Desa Ho (m)
A. Prigi 5.84
B. Karanggandu 5.67
C. Tasikmadu 6.62
D. Ngulung wetan 4.5
E. Ngulung kulon 4.83
F. Craken 4.4
G. Masaran 4.83
H. Munjungan 4.63
I. Tawing 4.7
J. Bendoroto 4.63
K. Besuki 4.37
L. Wonocoyo 4.13
M. Ngelebeng 6.31
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*
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*
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No Daerah Ketinggian Gelombang/Run-up
1 C Pelindu 3.2 Meter
2 Puger 4.88 - 5.85 Meter
3 Watuulo 6.50 - 7.50 Meter
4 Sukamade 6.10 - 6.25 Meter
5 Rajawesek 6.30 - 9.50 Meter
6 Pancer 4.55 - 4.70 Meter
7 Lampon 5.0 - 8.90 Meter
*
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* (Sumber: Triadmodjo, 2004)
M H (meter)
5.0 > 32
4.5 24.0 – 32.0
4.0 16.0 – 24.0
3.5 12.0 – 16.0
3.0 8.0 – 12.0
2.5 6.0 – 8.0
2.0 4.0 – 6.0
1.5 3.0 – 4.0
1.0 2.0 – 1.5
0.5 1.5 – 2.0
0 1.0 – 1.5
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*
*“TSUNAMI adalah Fenomena alam
yang berpotensi menjadi bencana,
dan tidak akan menjadi bencana
jika manusianya SIAP dengan
Mitigasi.”