Modul Nemos Dan Cedas

TUTORIAL NEMOS (CEDAS 2.01)

[ MODUL NEMOS ] Data yang diperlukan : 1. Data Time Series gelombang 1 tahun 2. Data Batimetri Format XYZ (ASCII) (sudah digabung dengan Topografi) 3. Data Shoreline Format XY Pairs

File yang digunakan : Kasus Pantai Saloloang A1_SMRG_wav.txt

data gelombang 1 tahun

Batimetri.txt

data batimetri

Garis pantai.txt

data garis pantai

1. GRID GENERATION 

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



Run NEMOS



Begin a new model, ok



Add as…Pilih Grid Generator, ok



Edit, Import data



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



Matikan Plot Triangels dan Plot Points

Plot Points Plot Triangels



Edit, Import Data



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

Show Shoreline Points



Untuk memilih daerah model, pilih toobar : select Grid Region

1

2

3

Select Grid Region 

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



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



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 Define GENESIS Grid

Contur Depth : 5



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

B2_SMRG_sta_Stw.nc

station

file

File

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

Tulis X Azimut

 Spatial

domain GENESIS



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

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Included Components : Waves



Index type : Time, ok



Pilih A1_SMRG_wav.txt , open



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 Direction Convention : Meteorologic



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

3.

Water depth (Phase 3 wave Output Station)

 Isi  

Menentukan

kedalaman station (pada batas daerah sebelum gelombang pecah) 4.

Station Name = batas

5.

Output = C1_SMRG_wave_ph3.nc

6.

Shoreline Azimuth = X – 90o

7.

Input wave Station depth

 Isi

Use sta water depth 8.



Save as

Run Model



C2_SMRG.wp3

Klik

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

Angle Tol

= 20 deg

Failure Mode

= Set Periode Flag

Flag value

= -99

Ok



File disimpan : C3_SMRG_wave_crit.nc



Station, Waves, wave Periode Range Masukan

 Sense

Min

= Include =0

Max = 22 Failure Mode = Removed Record



Ok..



File disimpan : C3_SMRG_wave_nocalm_crit.nc

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



Pilih Occurrence v Theta v Periode



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



Kembali ke sheet data



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



Station, wave, change direction convention

Pilih : Shore_Ref 1 Nilai Azimut X Awal



Ok...



Station,

Waves,

Change

Direction

Convention

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...

disimpan

dalam

:

8.



Pilih Event : Edit, Select Event, ok



Save File dalam = F1_SMRG_Specgen.sgn

MODUL STWAVE 

File, New, Pilih STWAVE Configuration



File yang di masukkan Sheet Configuration : 1. Simulation Name = Marina5 Sheet Files : 1. Configuration File = G1_STWV.stw  Isi

2. Spatial Domain

= B1_SMRG_Spd.nc

3. Spectrum

= F1_SMRG_Specgen.sgn

4. Stations

= B2_SMRG_sta_Stw.nc

5. Print

= G3_STW.prt

6. Field

= G2_STW_fld.nc



Save AS : G1_STWV.stw



Run Model

Panggil Panggil

Panggil

 Isi  Isi

Klik

Proses Running Model STWAVE

Running Model STWAVE Sukses !!!!!!

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

3. Incident wave File

= DO_SMRG_perm.nc

4. Field File

= E3_Rcp_fld.nc

5. Station File

= B2_SMRG_sta_Rcp.nc

6. Print

= E1_Rcp.prt

 Panggil  Panggil

 Isi

 Isi

 Panggil



Run Model

Klik

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)



Ok



Melihat hasil Running RCPWAVE

  (Sama

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

halnya dengan melihat hasil

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

Pilih : Shore_Ref 1 Nilai Azimut X Awal



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..



Edit, Sand Beach, and Longshore

D50



Ok..



Edit, Boundary Condition Data 1. Seaward BC Wave Data

2. Lateral BC Data



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 ) 

Save : GENESIS2, Ok…

B2_SMRG_sta_Stw.nc  Panggil



Run Model



Ok…

Klik



Hsil Running Perubahan garis pantai dapat dilihat untu setiap langkah waktu

Contoh : Tanggal 22 - 11 – 2003



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.