Modul Nemos Dan Cedas

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TUTORIAL

NEMOS (CEDAS 2.01)

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[ MODUL NEMOS ]

Data yang diperlukan :

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1. Data Time Series gelombang 1 tahunData Time Series gelombang 1 tahun 2.

2. Data Batimetri Format XYZ (ASCII)Data Batimetri Format XYZ (ASCII) (sudah digabung dengan Topografi) (sudah digabung dengan Topografi) 3.

3. Data Shoreline Format XY PairsData Shoreline Format XY Pairs

File yang digunakan :

Kasus Pantai Saloloang Kasus Pantai Saloloang A1_SMRG_wav.txt

A1_SMRG_wav.txt data data gelombang gelombang 1 1 tahuntahun Batimetri.txt

Batimetri.txt data data batimetribatimetri Garis

Garis pantai.txt pantai.txt data data garis garis pantaipantai

1. GRID GENERATION 1. GRID GENERATION

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 Start, jalankan program CEDAS 2.01 yang telah di Instal terlebih dahuluStart, jalankan program CEDAS 2.01 yang telah di Instal terlebih dahulu

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 Begin a new model, ok

 Add as…Pilih Grid Generator, ok  Edit, Import data

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 Pilih Files of Tipe : ASCII XYZ, Pilih File Name : Batimetri  Distance units : meter, open

 Specifi Coordinate System, pilih local, ok

 Tuliskan : MSL, ok

 Pilih Toolbar Edit, Triangulate

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 Edit, Import Data

Plot Triangels Plot Points

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 Pilih Files of Tipe Shoreline Points (XY Pairs), Pilih File Name : Garis_pantai

 Distance units : meter, open

 Untuk menampilkan garis pantai, pilih toolbar show shoreline points

 Untuk memilih daerah model, pilih toobar : select Grid Region

 Menentukan domain boundary, Click point 1, sebagai origin, point 2(x-axis), nanti akan menunjukkan Azimuth, pointh 3 (y-axis)

Show Shoreline Points

Select Grid Region

3 2

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 Region harus dipilih demikian, sebab model boundary harus mengikuti/memotong Y-axis sehingga diusahakan garis pantai sejajar dengan y-axis (tegak lurus dengan Y-axis)

 Edit, Build Uniform Grid

Ukuran Grid : 50 x 50 (Disesuaikan Kebutuhan)

Pembatasan daerah model Secara manual

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 Pemilihan station  menentukan kedalaman station, untuk kebutuhan Genesis, station dibuat sepanjang offshore Genesis Boundary (sejajar garis pantai) pada zona sebelum gelombang pecah.

 Pilih : Define GENESIS Grid

 Isi Contur Depth at First Station : 5, ok  Klik kana

1. Eksport grid file dengan nama : B_SMRG_Grid.grd  Grid 2. Eksport Spatial domai file dengan nama :B1_SMRG_Spd.nc 3. Eksport Station File dengan nama :

B2_SMRG_sta_Rcp.nc  station file B2_SMRG_sta_Stw.nc station File

4. Eksport GENESIS spatial domain File dengan nama: B1_SMRG_Spd_GEN.nc  Spatial domain GENESIS

 Tulis X Azimut Contur Depth : 5

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 Untuk mengecek grid generator berhasil………….

1. File, New, Genesis

2. Open Spatial Domain File

3. Panggil : B1_SMRG_Spd_GEN.nc 4. Jika muncul  Sukses

5. Jika tidak muncul  Ulangi Grid Generator

2. WAVE TRANSFORMATION (WWL DATA)

 File, New, WWWL Data, ok  Import ASCII data file

 Included Components : Waves  Index type : Time, ok

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 Pada sheet kiri bagian bawah

 Klik Location

Mean Water Depth at Datum : 5 (m) Horizontal Datum : local

Vertical Datum : MSL

World Coordinat System : UTM

Easting : 116

Northing : 1.3

Hemisphare :

Zone : 50 ..

 Klik Time

Pilih :Local Standard Time Meridian

(deg) : East

 Klik Wave

Station Name : Marina Wave Height Units : m

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 File, Save As : A2_SMRG_WWWL.nc

3. WISPH3 (Wave Information Study Phase)

 File, New, Pilih WISPH3 Configuration, ok 1. Input = A2_SMRG_WWWL.nc  Panggil 2. Printed Output = B3_SMRG_ph3.prt  Isi

3. Water depth (Phase 3 wave Output Station)  Menentukan kedalaman station (pada batas daerah sebelum gelombang pecah) 4. Station Name = batas

5. Output = C1_SMRG_wave_ph3.nc  Isi 6. Shoreline Azimuth = X – 90o

7. Input wave Station depth Use sta water depth

8. Save as  C2_SMRG.wp3

 Run Model

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4. Analisa Data Gelombang (WWWL Data)  File, New, Pilih WWWL Data, ok

 Read existing wave file netcdf format, ok  Pilih File : C1_DMK.nc, ok

Ok

 Station, Waves, Wave Transport Range

Ini untuk menandai gelombang yang tidak mampu mengangkut material Angka -99 akan muncul pada

Fill  Wave asumption = deep water

Azimuth = Azimut yang awal pada grig generator Treshold = 1,97 m3/dt

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Angle Tol = 20 deg

Failure Mode = Set Periode Flag Flag value = -99

 File disimpan : C3_SMRG_wave_crit.nc  Station, Waves, wave Periode Range

Masukan  Sense = Include Min = 0

Max = 22

Failure Mode = Removed Record

 Ok..

 File disimpan : C3_SMRG_wave_nocalm_crit.nc

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5. WSAV

 Digunakan untuk analisis kondisi gelombang untuk statistik gelombang  File, New, Pilih WSAV, ok

 File, Open wave Component1

 Pilih C3_SMRG_wave_nocalm_crit.nc  Edit : Band Limits

W.Height  MEAN (Ratio Button) w. Periode  MEAN

w.angle  MEAN

 Ok..

 Edit, analyze, untuk running model dan prosedur statistics  Plot Type, Block Diagram, Number of Accurance

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 File, Save Permutations Result

File : DO_SMRG_perm.nc

 File, Save As : DO_SMRG_WSAV.wsv 6. _{Menampilkan hasil dalam WWWL editor}

 File, New, Pilih WWWL Data, Ok  Open Permutation File

 DO_SMRG_perm.nc

 Pilih Wave pada Sheet data dibawah

Ubah Station Name : Marina

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 Untuk digunakan dalam Specgen untuk diproses Running STWAVE, data ini harus diconvert ke local polar

 Station, wave, change direction convention

 Ok...

 Station, Waves, Change Direction Convention disimpan dalam : DO_SMRG_Perm_2.nc

7. MODUL SPECGEN (Membuat Spektrum Gelombang)  File, New, Pilh SPECGEN, ok

 File, Import Permutation File DO_SMRG_Perm_2.nc  Isi : min = 0,04 Delta = 0,02  Ok... Nilai Azimut X Awal Pilih : Shore_Ref 1

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 Pilih Event : Edit, Select Event, ok

 Save File dalam = F1_SMRG_Specgen.sgn

8_{. MODUL STWAVE}

 File, New, Pilih STWAVE Configuration  File yang di masukkan

Sheet Configuration :

1. Simulation Name = Marina5 Sheet Files :

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2. Spatial Domain = B1_SMRG_Spd.nc Panggil

3. Spectrum = F1_SMRG_Specgen.sgn Panggil 4. Stations = B2_SMRG_sta_Stw.nc Panggil 5. Print = G3_STW.prt  Isi

6. Field = G2_STW_fld.nc  Isi

 Save AS : G1_STWV.stw

 Run Model

Klik

Proses Running Model STWAVE

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9. MODUL RCPWAVE

 File, New, Pilih RCPWAVE Configuration, ok…  Edit Sheet configuration

1. Simulation Title : Marina6  Edit Sheet File

1. Configuration File = E4_Rcp.rcp  Isi

2. Spatial Domain = B1_SMRG_Spd.nc  Panggil 3. Incident wave File = DO_SMRG_perm.nc  Panggil 4. Field File = E3_Rcp_fld.nc  Isi

5. Station File = B2_SMRG_sta_Rcp.nc  Panggil 6. Print = E1_Rcp.prt  Isi

Running Model STWAVE Sukses !!!!!!

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 Run Model

10. MODUL WMV

 Untuk melihat hasil Running Model STWAVE dan RCPWAVE  File, Open, Pilih WMV, Ok

 Melihat hasil Running STWAVE :

1. Field File = G2_STW_fld.nc

2. Station Files = B2_SMRG_sta_Stw.nc

 Next, Pilih Event, Next

Pilih :

Dataset : batimetri/topografi View : Contour & Isoline

 Finish

 Edit, Additional Plot Option

 Pilih Wave direction vectors (untuk melihat vector gelombang) Klik

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 Ok

 Melihat hasil Running RCPWAVE  (Sama halnya dengan melihat hasil running STWAVE)

1. Field File = E3_Rcp_fld.nc

2. Station Files = B2_SMRG_sta_Rcp.nc

Gambar hasil Running RCPWAVE  Cara lain : dari toolbar Setup Wizart

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11. MODUL GENESIS

 File, New, Pilih WWWL DATA, Ok  Klik Read existing wave file, ok  Pilih File : C1_DMK.nc

 Station, Waves, change Direction Convection

 File, Save As, H4_Waves.nc  File, New, GENESIS

 File, Open Spatial Domain File, B1_SMRG_spd_GEN.nc  Edit, Shoreline, Reference

Date : Awal simulasi  Ok..

Nilai Azimut X Awal

Pilih :

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 Edit, Sand Beach, and Longshore

 Ok..

 Edit, Boundary Condition Data 1. Seaward BC Wave Data

2. Lateral BC Data

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 Ok..

 Edit, Configuration

1. Simulation title = Perubahan Garis Pantai Marina 2. General 1//0 units = metric

3. Simulation Temporal data 4. Start date : 19990101 5. End Date : 20200101 6. Time step : 1 hr

7. Recording time step : 24 hr

8. Printed Output, Printable output : H6_genesis.prt  Isi 9. Wave Comp : H4_waves.nc  Panggil

10.Visualization File : H5_animasi.vis  Isi 11.Station File : B2_SMRG_sta_Stw Panggil

12.(From external wave model ) B2_SMRG_sta_Stw.nc  Panggil

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 Run Model

 Ok…

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 Hsil Running Perubahan garis pantai dapat dilihat untu setiap langkah

waktu

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 View, Out-put

 Animasi Hasil Running dapat disimpan dalam format avi  File, Export Animation

12. DESAIN BANGUNAN PANTAI

Untuk pantai yang terdapat bangunan pantai seperti : break water, garoin, jetty, seawall Cedas dapat di desain untuk kasus tersebut.