WAVE COMPUTATIONS AT REGIONAL SCALE AND LOCAL AREA … qua Du an... · 2018. 1. 31. · LMDCZ...

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LMDCZ project: Waves and coastal currents modeling (WP4) 1 WAVE COMPUTATIONS AT REGIONAL SCALE AND LOCAL AREA OF GO- CONG USING TELEMAC MODEL SUITE TABLE OF CONTENTS 1. INTRODUCTION......................................................................................................... 3 2. OBJECTIVES .............................................................................................................. 3 3. METHODOLOGY ........................................................................................................ 4 4. MODEL SETUP, DATA USED, CALIBRATION AND VALIDATION ........................... 6 4.1. MODEL SETUP ................................................................................................. 6 4.2. DATA USED....................................................................................................... 7 4.2.1. Wave model setup of the whole South China Sea .......................................... 7 4.2.2. HD and sediment transport modeling in the extended study area .................. 8 4.2.3. 2D Hydrodynamic and sediment transport model in the detailed study area .. 8 4.2.4. Topographic data ............................................................................................ 8 4.2.5. Wind field data ................................................................................................ 8 4.2.6. Wave field data ............................................................................................. 11 5. CALIBRATION AND VALIDATION RESULT ............................................................ 12 5.1. WAVE AND CURRENT MODEL CALIBRATION ............................................. 12 5.2. HD CALIBRATION IN THE EXTENDED AND LOCAL COMPUTATIONAL MODEL ...................................................................................................................... 14 6. CONCLUSIONS ........................................................................................................ 20 7. REFERENCES.......................................................................................................... 20 APPENDIX ....................................................................................................................... 21 LIST OF FIGURES Figure 4.1: Global model .................................................................................................... 7 Figure 4.2: Extended Model (A) ......................................................................................... 8 Figure 4.3: Local Model (B) ................................................................................................ 8 Figure 4.4: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016) ............................ 10 Figure 4.5: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016) ............ 10 Figure 4.6: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (22 Feb-15 Mar 2017)...................... 10 Figure 4.7: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (16-31 October 2016) ...... 10 Figure 4.8: NCEP wind data (used for wave forcing factor) of the South China Sea Area11

Transcript of WAVE COMPUTATIONS AT REGIONAL SCALE AND LOCAL AREA … qua Du an... · 2018. 1. 31. · LMDCZ...

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    WAVE COMPUTATIONS AT REGIONAL SCALE AND LOCAL AREA OF GO-

    CONG USING TELEMAC MODEL SUITE

    TABLE OF CONTENTS

    1. INTRODUCTION ......................................................................................................... 3

    2. OBJECTIVES .............................................................................................................. 3

    3. METHODOLOGY ........................................................................................................ 4

    4. MODEL SETUP, DATA USED, CALIBRATION AND VALIDATION ........................... 6

    4.1. MODEL SETUP ................................................................................................. 6

    4.2. DATA USED ....................................................................................................... 7

    4.2.1. Wave model setup of the whole South China Sea .......................................... 7

    4.2.2. HD and sediment transport modeling in the extended study area .................. 8

    4.2.3. 2D Hydrodynamic and sediment transport model in the detailed study area .. 8

    4.2.4. Topographic data ............................................................................................ 8

    4.2.5. Wind field data ................................................................................................ 8

    4.2.6. Wave field data ............................................................................................. 11

    5. CALIBRATION AND VALIDATION RESULT ............................................................ 12

    5.1. WAVE AND CURRENT MODEL CALIBRATION ............................................. 12

    5.2. HD CALIBRATION IN THE EXTENDED AND LOCAL COMPUTATIONAL MODEL ...................................................................................................................... 14

    6. CONCLUSIONS ........................................................................................................ 20

    7. REFERENCES.......................................................................................................... 20

    APPENDIX ....................................................................................................................... 21

    LIST OF FIGURES

    Figure 4.1: Global model .................................................................................................... 7 Figure 4.2: Extended Model (A) ......................................................................................... 8 Figure 4.3: Local Model (B) ................................................................................................ 8 Figure 4.4: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016) ............................ 10 Figure 4.5: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016) ............ 10 Figure 4.6: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (22 Feb-15 Mar 2017) ...................... 10 Figure 4.7: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (16-31 October 2016) ...... 10 Figure 4.8: NCEP wind data (used for wave forcing factor) of the South China Sea Area11

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    Figure 4.9: Wavewatch-III data of the South China Sea Area .......................................... 12 Figure 5.1: Scope of study area and locations of model validation points ........................ 13 Figure 5.2: Comparison of wave height contours calculated by TOMAWAC model with WAVEWATCH-III model at 18h on 11/10/2009 ................................................................ 14 Figure 5.3: Water level calibration points of the Extended Computational Mesh .............. 14 Figure 5.4: Water level calibration of Ben Trai, Binh Dai, GanhHao regular observed stations ............................................................................................................................. 15 Figure 5.5: Water level calibration of My Thanh, My Tho, RachGia regular observed stations ............................................................................................................................. 16 Figure 5.6: Water level calibration of Song Doc, TraVinh, VamKenh regular observed stations ............................................................................................................................. 17 Figure 5.7: The location fixed wave and sediment observation station ............................ 18 Figure 5.8: Wave model calibration (wave height) at the observation site (16-30 October 2016) ................................................................................................................................ 19 Figure 5.9: Wave model calibration (wave direction) at the observation site (16-30 October 2016) .................................................................................................................. 19 Figure 5.10: Wave model calibration (wave height) at the observation site (25 Feb-12 Mar 2017) ................................................................................................................................ 19 Figure 5.11: Wave model calibration (wave direction) at the observation site (25 Feb-12 Mar 2017) ......................................................................................................................... 20 Figure 5.12: Strickler’s roughness coefficient distribution (K) after model calibration ....... 20 Figure A-1: Water level calibration at the points P1÷P8 (2014-2015) ............................... 22 Figure A-2: Water level calibration at the points P9÷P16 (2014-2015) ............................. 23 Figure A-3: Water level calibration at the points P17÷P24 (2014-2015) ........................... 24 Figure A-4: Water level calibration at the points P25÷P32 (2014-2015) ........................... 25 Figure A-5: Water level calibration at the points P33÷P40 (2014-2015) ........................... 26 Figure A-6: Water level calibration at the points P41÷P48 (2014-2015) ........................... 27 Figure A-7: Water level calibration at the points P46÷P56 (2014-2015) ........................... 28 Figure A-8: Water level calibration at the points some island and nearshore locations (2014-2015) ...................................................................................................................... 29 Figure A-9: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P1-P8) (2014-2015) ............ 30 Figure A-10: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P9-P16) (2014-2015) .......... 31 Figure A-11: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P17-P24) (2014-2015) ........ 32 Figure A-12: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P25-P32) (2014-2015) ........ 33 Figure A-13: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P33-P40) (2014-2015) ........ 34 Figure A-14: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P41-P48) (2014-2015) ........ 35 Figure A-15: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P49-P56) (2014-2015) ........ 36

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    Figure A-16: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (Cunnimao, Kolak, PhuQuoc, Con Dao, Qui Nhon, Phu Qui) (2014-2015) ..................................................................... 37 Figure A-17: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P1-P8) (2014-2015) ..................... 38 Figure A-18: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P9-P16) (2014-2015) ................... 39 Figure A-19: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P17-P24) (2014-2015) ................. 40 Figure A-20: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P25-P32) (2014-2015) ................. 41 Figure A-21: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P33-P40) (2014-2015) ................. 42 Figure A-22: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P41-P48) (2014-2015) ................. 43 Figure A-23: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P49-P56) (2014-2015) ................. 44 Figure A-24: Wind rose of 1-4 point in SW (left) and NE(right) monsoons ....................... 45 Figure A-25: Wind rose of 5-8 point in SW (left) and NE(right) monsoons ....................... 46 Figure A-26: Wind rose of 9-12 point in SW (left) and NE(right) monsoons ..................... 47 Figure A-27: Wind rose of 13-16 point in SW (left) and NE(right) monsoons ................... 48 Figure A-28: Wind rose of 17-20 point in SW (left) and NE(right) monsoons ................... 49 Figure A-29: Current rose at points 1,2,3 in Southwest and Northeast monsoon ............. 50 Figure A-30: Current rose at points 4,5,6 in Southwest and Northeast monsoon ............. 51 Figure A-31: Current rose at points 7,8,9 in Southwest and Northeast monsoon ............. 52 Figure A-32: Current rose at points 10,11,12 in Southwest and Northeast monsoon ....... 53 Figure A-33: Current rose at points 13,14,15 in Southwest and Northeast monsoon ....... 54 Figure A-34: Current rose at points 16,17,18 in Southwest and Northeast monsoon ....... 55 Figure A-35: Current rose at points 19,20,21 in Southwest and Northeast monsoon ....... 56

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    1. INTRODUCTION

    The coastal area of the Lower Mekong Delta (LMD) influenced by waves, tidal currents,

    changing sediment loads from the Mekong and Saigon-Dong Nai river system, and storm

    surges from the East and West Sea. In addition, human activity has an impact on erosion

    and deposition processes through dyke construction and drainage, agriculture,

    aquaculture, and fishery exploitation along the coastal areas. In recent years, the impact

    of upstream dams, especially on the Mekong main river, has reduced sediment feeding

    into the LMD and its estuary. All of these impacts have caused shore erosion along

    approximately two thirds of the total coastline length, and a land loss rate of about 500

    ha/year in the past ten years. In the future, climate change and sea level rise will make

    this situation worse. Figure 1.1 shows the LMD and seasonal wind patterns affecting the

    seasonal transport of sediment along the coastal zone; Figure 1.2 shows the estimation of

    erosion and deposition rates along the LMD coastal zone.

    The subject of this project is the coastal zone of the Vam-Lang, Kieng-Phuoc, Tan-Dien,

    and Tan-Thanh communes of the Go Cong district (Tien Giang province), located at the

    coordinates of 106o40’50’’ ÷ 106o47’40’’ Easting and 10°15'35” ÷ 10°25'45 Northing. Research area is contiguous to the Soai Rap River in the North, to the Cua Tieu River in

    the South, to the East Sea in the East and to the Go Cong Eastern Dyke System.

    2. OBJECTIVES

    The goal of the project is to model the coastal erosion situation of Go Cong with Telemac-

    Mascaret Modeling Suite to propose the coastal protection measures.

    This report presents the results of calibration and validation of flow and wave numerical

    models over the regional and local zones for further simulation in the LMDCZ.

    3. METHODOLOGY

    A desirable approach for this project is integration from general to specific. Firstly, the

    whole LMDCZ should be considered in the context of South China Sea with its

    hydrodynamic characteristics. Secondly, the impact of human activities should be

    estimated, especially the reduction of sediment to the LMD and coastal area due to

    upstream Mekong dams. In addition, sea level rise from climate change should be

    accounted.

    The numerical approaches will be used for this work-package with consideration of

    experimental works in other work-package of the project. The well-known numerical

    models such as TELEMAC-2D, TOMAWAC and SISYPHE will be used to compute

    waves, currents, and sediment plumes in the LMDCZ.

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    The LMDCZ project will use the whole South China Sea model solutions for tidal and

    wave fields in the East and West Seas. The LMDCZ project will use the results obtained

    from the large-scale study as initial and boundary data for the simulations with very fine-

    scale resolution of tides, waves and geo-morphological changes.

    Then, the numerical simulations of the whole LMDCZ will provide boundary conditions for

    simulations of regional areas, which will in turn provide initial and boundary conditions for

    the study areas, that is Go Cong (largely impacted by the Mekong estuary and the East

    sea flow-wave regimes).

    Modeled shore protection measures for Go Cong should be considered both as “hard” and “soft”. The appropriate protection measures need to be assessed based on numerical models with consideration of physical models, focusing on their possible impact in the

    long term, under changing conditions for sediment sources and climate.

    In order to calibrate the model for flows and sediments, 2 additional measurement

    campaigns, each lasting 15 days, in the estuaries and in coastal zones along the lower

    Mekong Delta. The two 15-day measurement campaigns for each site is carried out in

    October 2016 and in February 2017.

    There are 6“stations”planned for each campaign, including: 2 stations in Mekong (at My Thuan) and Bassac (at Can Tho) rivers (coincided with

    National Hydrology Stations) for measuring discharges (Q) and suspended sediment

    concentration (SSC) by ADCP.

    2 fixed stations at Go Cong and U-Minh;

    2 “mobile” ships along the East and West seas Measured fields for the 4 latter “stations” will be:

    Water level (hourly at the 2 fixed stations) Vertical distribution of velocity Vertical distribution of salinity (5 points for each vertical line) Vertical distribution of sediments (5 points for each vertical line) Waves (height, period and direction)

    Numerical models have reached a level of accuracy and detail over the past 25 years that

    most of the dominant processes in the coastal environment can be quantified. However,

    the numerical models are tools only for the coastal engineers and planners.

    I ideal, the study is should be divided into 2 parts: a) baseline study and b) measures’ assessment. Baseline studies of ocean and coastal conditions leading to:

    Baseline description of wind, waves and tides in the area

    Coastal classification

    Description of littoral drift conditions

    Equilibrium orientation of shorelines

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    Description of variability in above conditions

    Regional and extended zones modeling

    Sufficiently long recording of time series of tides and waves is normally not available at a

    project site as basis for establishment of design conditions, whereas wind recordings and

    weather maps are normally available from local meteorological stations and international

    organizations (NOAA, NCEP,.etc.). Such wind and air pressure data are very suitable as

    input data for spectral wind wave models and 2D or 3D hydrodynamic flow models. The

    combination of advanced numerical wave and hydrodynamic models and powerful

    computers thus makes it possible to run long time series, i.e. decades of years, of

    hydrodynamic and wind wave simulations thereby providing basis for establishment of a

    baseline description of the following offshore conditions:

    Winds

    Waves

    Currents and flushing conditions

    Tides and storm surges

    Possible shorter recording time series of waves, tides and currents are suitable for

    calibration of the numerical models. The established time series of regional marine

    parameters are thereafter suitable for statistical description of normal conditions as well

    as of design conditions. Furthermore, the established regional models can provide

    boundary conditions for local wave, hydrodynamic and sediment transport models

    Local area modeling

    The study of the conditions in the local project area will normally require the

    establishment of local models. The new generation of such models are Flexible Mesh

    Models, in which the local model resolution can be adjusted as required. This technique

    provides the possibility of modeling large areas in one single model without shifting to

    several layers of finer grid models

    4. MODEL SETUP, DATA USED, CALIBRATION AND VALIDATION

    4.1. MODEL SETUP

    Figures 3.1, 3.2, 3.3 depict the research scope of the models with different scales and

    levels of details. The Regional computational model (RCM) was established for the whole

    South China Sea with the aim of deep-water waves modeling to get wave and current

    boundary data for more detailed models. The main boundary for the RCM model itself are

    located at Malacca, Luzon and Taiwan Straits.

    Model A is an extended model, used to simulate offshore boundary conditions (tidal,

    storm surge, wave, current generated by wind, etc.) for coastal study areas. The spatial

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    scope of Model A was chosen broadly enough to ensure that the effects of uncertainty at

    the open boundary to the main study area were minimized. In this study, model A covers

    an area of about 130 km diameter around the LMD coastline of from Dong Ho Lake

    (RachGia Province) to Long Hai cape (Vung Tau Province). The bottom of the seabed at

    about -67.2 m÷3.29 m.

    Figure 4.1: Global model

    Figure 4.2: Extended Model (A)

    Figure 4.3: Local Model (B)

    Model B is a detailed model of the study area and used to predict the coastline dynamics

    under different extreme condition and to estimate the effectiveness of a structural

    TAIWAN STRAIT

    LUZON STRAIT

    MALACCA STRAIT

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    measures. The open boundary data for the model B are extracted from the results of

    model A simulation.

    Because the actual data is only within the range of model A, this report only presents

    calibration and validation results for the RCM Model and Model A. The parameters of

    model A are also used for model B.

    4.2. DATA USED

    4.2.1. Wave model setup of the whole South China Sea

    Forecast tidal levels are used at open boundaries of the model. These tidal levels were

    predicted based on the harmonic constituents obtained from the analysis of global tidal

    data monitored with satellites and corrected with real measured data. All datasets are

    integrated within FES2014 database.

    Wave heights, periods, frequencies, directions for the Malacca, Luzon and Taiwan straits

    are extracted from WAVEWATCH-III database.

    4.2.2. HD and sediment transport modeling in the extended study area

    Upstream open boundaries at river estuaries are 7discharge boundaries. Two of

    discharge boundaries are located near the hourly observed station so they are provided

    with real discharge data. For the 5 other boundaries, flow data are generally extracted

    from the results of the 1D hydrodynamic model (MIKE11). The mentioned above 1D

    model has been established, calibrated, validated and used by the SIWRR in different

    research projects in the recent several years, so the model is highly reliable. In the wave

    model, these boundaries are assumed to be closed boundaries (land or wall boundary).

    4.2.3. 2D Hydrodynamic and sediment transport model in the detailed study area

    For upstream discharge boundary, the discharge data used are similar to model A. For

    the seaward open boundaries, water level data used are extracted from simulation results

    of model A.

    For the wave model, seaward open boundaries are extracted from the wave simulation

    results of model A. Upstream boundaries are also assumed to be Land Boundary (Closed

    Wall).

    4.2.4. Topographic data

    The topographic data used in this study were inherited from different sources and earlier

    researches:

    For estuarine areas (Soai Rap, Cua Tieu, Cua Dai, Ham Luong) and coastal areas of Go Cong, Can Gio and the Ganh Rai Gulf, the topographic data is extracted

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    from the surveying reconnaissance of 1/5.000 scale topographic plane. In the

    years 2008, 2009, and 2010, under the framework of the Baseline Survey Project

    implemented by the SIWRR and the ICOE as well as survey work-package of this

    research.

    For coastal areas from HCMC to Kien Giang, the topographic data was extracted from the map (scale of 1/100,000) published by the Navy in 1982.

    The topography in other areas of the South China Sea was extracted from the SRTM30_PLUSV6.0 database from the Scripps Institution of Oceanography,

    Californian University, USA. This is a dataset with 30"×30" resolution, constructed

    from the satellite-gravity model, in which the gravity-to-topography ratios are

    corrected by 298 million ADCP depth points.

    4.2.5. Wind field data

    Wind field data is the most important input parameter for the wave computation model.

    The background wind data used in this study derived from the modeling results of the

    Climate Forecast System Reanalysis (CFSR) of the National Center for Environmental

    Prediction, the part of the US National Oceanic and Atmospheric Administration

    (NCEP/NOAA). The wind field results obtained from the “reanalysis” simulation, which includes the model validation with the measured data from the global marine observation

    stations system so the data should be highly reliable. This wind field data is from 1979 ÷

    2009 with a time step of 1 hour and a grid size of 0.312o×0.312o. This is a very good

    dataset for the wind and weather research. Wind speed (NCEP) [m/s]Wind speed (Observed) [m/s]

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    0.0

    1.0

    2.0

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    4.0

    5.0

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    7.0

    8.0

    9.0

    10.0

    Figure 4.4: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016)

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    Wind direction [deg]Wind Direction [deg]

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    0.00

    Figure 4.5: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the first campaign (16-31 October 2016)

    Wind speed (NCEP) [m/s]Wind speed (Observed) [m/s]

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    0.0

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    Figure 4.6: Wind speeds of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (22 Feb-15 Mar 2017)

    Wind Direction (NCEP) [deg]Wind Direction (Observed) [deg]

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    0.00

    Figure 4.7: Wind directions of NOAA wind data (used for wave forcing factor) and observed wind data at Go Cong site in the second campaign (16-31 October 2016)

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    Figure 4.8: NCEP wind data (used for wave forcing factor) of the South China Sea Area

    4.2.6. Wave field data

    The wave and wind data collected at Bach Ho drilling platform in 1996 was collected for

    the model calibration and validation purposes. The wind data used to verify the reliability

    of wind data extracted from the CFSR model. The wave data used to verify the

    TOMAWAC model.

    The satellite-monitored wave data used to calibrate the South China Sea model in this

    research was provided by France's AVISO organization. Concretely, the datasets are

    combined in Ssalto/Duacs wave-field toolset (compiled from wave monitored by different

    satellite system such as Jason-1 and Jason-2, Topex/Poseidon, Envisat, GFO, ERS-1

    and ERS-2, and Geosat). This data only includes significant wave height, with a time step

    of 1 day, a coarse 1o×1o space grid, and is available from September 14, 2009 to present.

    The wave simulation results of the WAVEWATCH-III model used for comparison with the

    TOMAWAC results are also provided by NCEP/NOAA. This dataset includes such wave

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    components as significant wave height, maximum wave period, and average main wave

    direction. The data has a time step of 3 hours, 0.5o×0.5o space grid, available from 2005

    to present.

    Figure 4.9: Wavewatch-III data of the South China Sea Area

    5. CALIBRATION AND VALIDATION RESULT

    5.1. WAVE AND CURRENT MODEL CALIBRATION

    To calibrate and validate the TOMAWAC wave model for the whole South China Sea

    (SCS) domain, we compare the wave results pattern from the SCS model with the

    following wave data: (i) Observed wave data from the satellites of France's AVISO

    organization, and (ii) Wave pattern simulated using the WAVEWATCH-III model of the

    NCEP/NOAA in the US.

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    For the current calibration of the South China Sea we use the FES2014 H and UV values

    at certain points in the deep water (P1-P56) and certain points located near-shore or

    around islands (Kolak, Tioman, Kuantan, Cendering, Curimao, Bintulu, Phu Qui, Con

    Dao).

    Figure 5.1: Scope of study area and locations of model validation points

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    The results of comparing the wave period and peak wave direction between the

    TOMAWAC and WAVEWATCH-III models in depicted in the Appendix figures A.1÷A.8 for

    tides, A.9÷A.16 for the wave heights and A.17÷A.24 for the wave directions. The pictures

    show a high correlation between the predicted results of the two models

    Figure 5.2: Comparison of wave height contours calculated by TOMAWAC model with WAVEWATCH-III model at 18h on 11/10/2009

    5.2. HD CALIBRATION IN THE EXTENDED AND LOCAL COMPUTATIONAL

    MODEL

    The riverine flow regime and the tidal flow at the estuaries of the extended and local

    model are calibrated and validated in with the data collected from government permanent

    gauge stations including: RachGia, Song Doc, GanhHao, My Thanh, Can Tho, Ben Trai,

    My Thuan, TraVinh, Binh Dai, My Tho, VamKenh and Vung Tau).

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    Figure 5.3: Water level calibration points of the Extended Computational Mesh

    The HD calibration also achieved adequate result (depicted in the figures 3.17-3.19) for

    2D modeling tool.

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    Figure 5.4: Water level calibration of Ben Trai, Binh Dai, GanhHao regular observed stations

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    Figure 5.5: Water level calibration of My Thanh, My Tho, RachGia regular observed stations

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    Figure 5.6: Water level calibration of Song Doc, TraVinh, VamKenh regular observed stations

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    The wave calibration and validation are performed with the sampled data of this project

    and sampled data of previously realized projects. The location of wave observation and

    mud-sediment sampling is how is figure 3.20. The wave calibration results are showed in

    figure 3.21-3.24, showing high correlation between observed wave data and simulated

    wave result near to the location of observation station.

    Figure 5.7: The location fixed wave and sediment observation station

    The UTM-48 coordinate of the station: X=705910.85; Y=1135667.81.

    Wave observation and sediment sampling time: 16-31 October 2016 and 24 February-12

    March 2017.

    - Data recording frequency: 15 min/record - Water sampling frequency: 2 hours/sample - Wind measurement frequency: each 2 hours

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    20

    Wave heights (simulated) [m]H1/3 [m] (Observed) [m]

    00:002016-10-17

    00:0010-19

    00:0010-21

    00:0010-23

    00:0010-25

    00:0010-27

    00:0010-29

    00:0010-31

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1.0

    1.1

    1.2

    1.3

    1.4

    Figure 5.8: Wave model calibration (wave height) at the observation site (16-30 October 2016) Wave directions (simulated) [deg]Direction [deg] (Observed) [deg]

    00:002016-10-17

    00:0010-19

    00:0010-21

    00:0010-23

    00:0010-25

    00:0010-27

    00:0010-29

    00:0010-31

    0

    10

    20

    Figure 5.9: Wave model calibration (wave direction) at the observation site (16-30 October 2016)

    Wave heights (simulated) [m]H1/3 [m] (Observed) [m]

    00:002017-02-26

    00:0002-28

    00:0003-02

    00:0003-04

    00:0003-06

    00:0003-08

    00:0003-10

    0.1

    0.2

    0.3

    0.4

    0.5

    0.6

    0.7

    0.8

    0.9

    1.0

    1.1

    1.2

    1.3

    1.4

    1.5

    Figure 5.10: Wave model calibration (wave height) at the observation site (25 Feb-12 Mar 2017)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    21

    Wave directions (simulated) [deg]Direction [deg] (Observed) [deg]

    00:002017-02-24

    00:0002-26

    00:0002-28

    00:0003-02

    00:0003-04

    00:0003-06

    00:0003-08

    00:0003-10

    00:0003-12

    -1.00

    -0.50

    0.00

    Figure 5.11: Wave model calibration (wave direction) at the observation site (25 Feb-12 Mar 2017)

    Figure 5.12: Strickler’s roughness coefficient distribution (K) after model calibration

    6. CONCLUSIONS

    With nesting approach, TELEMAC2D and TOMAWAC has been calibrated well from the

    Regional (South China Sea) Model to Extended Model with water levels, discharges,

    tides, waves and currents, especially the validation results based on the in-situ data of the

    LMDCZ project in October 2016 and February-March 2017. The hydrodynamic regimes

    were simulated to understand the hydrodynamics of the LMDCZ and ready for creating

    the boundary conditions for the detail study areas of Go Cong.

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    22

    7. REFERENCES

    1. Khang, N. D. 2015. Research on flow regime, sand-mud distribution in the coastal area

    between Soai Rap and Cua Tieu Estuaries. Proposal of coastal protection measures for

    Go Cong shoreline. SIWRR.

    2. Khang, N. D. 2015. Research on flow regime, sand-mud distribution in the coastal area

    between Soai Rap and Cua Tieu Estuaries. Proposal of coastal protection measures for

    Go Cong shoreline. SIWRR.

    3. Khang, N.D. 2013. Study on changes of hydrodynamic regime of coastal and estuarine

    areas affected by Vung Tau - Go Cong sea dyke project

    4. Telemac user guide

    5. Tomawac user guide

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    APPENDIX

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    24

    Figure A-1: Water level calibration at the points P1÷P8 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    25

    Figure A-2: Water level calibration at the points P9÷P16 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-3: Water level calibration at the points P17÷P24 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    27

    Figure A-4: Water level calibration at the points P25÷P32 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    28

    Figure A-5: Water level calibration at the points P33÷P40 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-6: Water level calibration at the points P41÷P48 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-7: Water level calibration at the points P46÷P56 (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    31

    Figure A-8: Water level calibration at the points some island and nearshore locations (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    32

    Figure A-9: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P1-P8) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-10: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P9-P16) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    34

    Figure A-11: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P17-P24) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    35

    Figure A-12: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P25-P32) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-13: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P33-P40) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Figure A-14: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P41-P48) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    38

    Figure A-15: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (P49-P56) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    39

    Figure A-16: Comparison of the significant wave height of the TOMAWAC model with the WAVEWATCH-III modeling results at the validation points (Cunnimao, Kolak, PhuQuoc, Con Dao,

    Qui Nhon, Phu Qui) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    40

    Wave direction

    Figure A-17: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P1-P8) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    41

    Figure A-18: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P9-P16) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    42

    Figure A-19: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P17-P24) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    43

    Figure A-20: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P25-P32) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    44

    Figure A-21: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P33-P40) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    45

    Figure A-22: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P41-P48) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    46

    Figure A-23: Comparison of the peak wave direction simulated by TOMAWAC model with the WAVEWATCH-III model results at the validation (P49-P56) (2014-2015)

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    47

    Wind speed (m/s)

    and direction at

    the point P1 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.82 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P1 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm3.28 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P2 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.45 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P2 in NE

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    N

    Calm3.12 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P3 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.19 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P3 in NE

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    N

    Calm2.98 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P4 in SW

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    NCalm

    4.11 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P4 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm2.84 %

    10 %

    Figure A-24: Wind rose of 1-4 point in SW (left) and NE(right) monsoons

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Wind speed (m/s)

    and direction at

    the point P1 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.82 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P1 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm3.28 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P2 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.45 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P2 in NE

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    N

    Calm3.12 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P3 in

    SW monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    4.19 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P3 in NE

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    N

    Calm2.98 %

    10 %

    Wind speed (m/s)

    and direction at the

    point P4 in SW

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    NCalm

    4.11 %

    10 %

    Wind speed (m/s)

    and direction at

    the point P4 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm2.84 %

    10 %

    Figure A-25: Wind rose of 5-8 point in SW (left) and NE(right) monsoons

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Wind speed (m/s)

    and direction at

    point P9 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    3.41 %

    10 %

    Wind speed (m/s) and

    direction at point P9 in

    NE monsoon

    Above 11.00

    10.00 - 11.00

    9.00 - 10.00

    8.00 - 9.00

    7.00 - 8.00

    6.00 - 7.00

    5.00 - 6.00

    4.00 - 5.00

    3.00 - 4.00

    2.00 - 3.00

    1.00 - 2.00

    Below 1.00

    N

    Calm2.37 %

    10 %

    Wind speed (m/s)

    and direction at

    point P10 in SW

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    NCalm

    3.25 %

    10 %

    Wind speed (m/s)

    and direction at

    point P10 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm2.15 %

    10 %

    Wind speed (m/s)

    and direction at

    point P11 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    3.14 %

    10 %

    Wind speed (m/s)

    and direction at

    point P11 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm2.07 %

    10 %

    Wind speed (m/s) and

    direction at point P12

    in SW monsoon

    Above 11.00

    10.00 - 11.00

    9.00 - 10.00

    8.00 - 9.00

    7.00 - 8.00

    6.00 - 7.00

    5.00 - 6.00

    4.00 - 5.00

    3.00 - 4.00

    2.00 - 3.00

    1.00 - 2.00

    Below 1.00

    NCalm

    3.07 %

    10 %

    Wind speed (m/s)

    and direction at

    point P12 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm2.01 %

    10 %

    Figure A-26: Wind rose of 9-12 point in SW (left) and NE(right) monsoons

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Wind speed (m/s)

    and direction at

    point P13 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    3.04 %

    10 %

    Wind speed (m/s)

    and direction at

    point P13 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.96 %

    10 %

    Wind speed (m/s)

    and direction at

    point P14 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    2.96 %

    10 %

    Wind speed (m/s)

    and direction at

    point P14 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.90 %

    10 %

    Wind speed (m/s)

    and direction at

    point P15 in SW

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    NCalm

    2.99 %

    10 %

    Wind speed (m/s)

    and direction at

    point P15 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.85 %

    10 %

    Wind speed (m/s) and

    direction at point P16 in

    SW monsoon

    Above 11.000

    10.000 - 11.000

    9.000 - 10.000

    8.000 - 9.000

    7.000 - 8.000

    6.000 - 7.000

    5.000 - 6.000

    4.000 - 5.000

    3.000 - 4.000

    2.000 - 3.000

    1.000 - 2.000

    Below 1.000

    NCalm

    2.93 %

    10 %

    Wind speed (m/s)

    and direction at

    point P16 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.79 %

    10 %

    Figure A-27: Wind rose of 13-16 point in SW (left) and NE(right) monsoons

  • LMDCZ project: Waves and coastal currents modeling (WP4)

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    Wind speed (m/s)

    and direction at

    point P17 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    2.96 %

    10 %

    Wind speed (m/s)

    and direction at

    point P17 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.74 %

    10 %

    Wind speed (m/s)

    and direction at

    point P18 in SW

    monsoon

    Above 11.0

    10.0 - 11.0

    9.0 - 10.0

    8.0 - 9.0

    7.0 - 8.0

    6.0 - 7.0

    5.0 - 6.0

    4.0 - 5.0

    3.0 - 4.0

    2.0 - 3.0

    1.0 - 2.0

    Below 1.0

    NCalm

    2.99 %

    10 %

    Wind speed (m/s) and

    direction at point P18

    in NE monsoon

    Above 11.00

    10.00 - 11.00

    9.00 - 10.00

    8.00 - 9.00

    7.00 - 8.00

    6.00 - 7.00

    5.00 - 6.00

    4.00 - 5.00

    3.00 - 4.00

    2.00 - 3.00

    1.00 - 2.00

    Below 1.00

    N

    Calm1.74 %

    10 %

    Wind speed (m/s)

    and direction at

    point P19 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    2.96 %

    10 %

    Wind speed (m/s)

    and direction at

    point P19 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.63 %

    10 %

    Wind speed (m/s)

    and direction at

    point P20 in SW

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    NCalm

    2.96 %

    10 %

    Wind speed (m/s)

    and direction at

    point P20 in NE

    monsoon

    Above 11

    10 - 11

    9 - 10

    8 - 9

    7 - 8

    6 - 7

    5 - 6

    4 - 5

    3 - 4

    2 - 3

    1 - 2

    Below 1

    N

    Calm1.57 %

    10 %

    Figure A-28: Wind rose of 17-20 point in SW (left) and NE(right) monsoons

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    52

    CURRENT ROSES

    Current speed

    (m/s) and direction

    at point P1 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm4.19 %

    10 %

    Current speed

    (m/s) and direction

    at point P1 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm5.31 %

    10 %

    Current speed

    (m/s) and direction

    at point P2 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm18.21 %

    10 %

    Current speed

    (m/s) and direction

    at point P2 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm18.33 %

    10 %

    Current speed

    (m/s) and direction

    at point P3 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm21.70 %

    10 %

    Current speed

    (m/s) and direction

    at point P3 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm21.56 %

    10 %

    Figure A-29: Current rose at points 1,2,3 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    53

    Current speed

    (m/s) and direction

    at point P4 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm14.13 %

    10 %

    Current speed

    (m/s) and direction

    at point P4 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm14.97 %

    10 %

    Current speed

    (m/s) and direction

    at point P5 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm13.67 %

    10 %

    Current speed

    (m/s) and direction

    at point P5 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm13.65 %

    10 %

    Current speed

    (m/s) and direction

    at point P6 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm12.22 %

    10 %

    Current speed

    (m/s) and direction

    at point P6 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm13.65 %

    10 %

    Figure A-30: Current rose at points 4,5,6 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    54

    Current speed

    (m/s) and direction

    at point P7 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm9.37 %

    10 %

    Current speed

    (m/s) and direction

    at point P7 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm11.28 %

    10 %

    Current speed

    (m/s) and direction

    at point P8 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm9.18 %

    10 %

    Current speed

    (m/s) and direction

    at point P8 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm11.46 %

    10 %

    Current speed

    (m/s) and direction

    at point P15 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm10.37 %

    10 %

    Current speed

    (m/s) and direction

    at point P9 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm12.67 %

    10 %

    Figure A-31: Current rose at points 7,8,9 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    55

    Current speed

    (m/s) and direction

    at point P10 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm10.66 %

    10 %

    Current speed

    (m/s) and direction

    at point P10 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm12.92 %

    10 %

    Current speed

    (m/s) and direction

    at point P11 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm13.72 %

    10 %

    Current speed

    (m/s) and direction

    at point P11 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm15.38 %

    10 %

    Current speed

    (m/s) and direction

    at point P12 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm14.35 %

    10 %

    Current speed

    (m/s) and direction

    at point P12 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm15.94 %

    10 %

    Figure A-32: Current rose at points 10,11,12 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    56

    Current speed

    (m/s) and direction

    at point P13 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm17.29 %

    10 %

    Current speed

    (m/s) and direction

    at point P13 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm19.03 %

    10 %

    Current speed

    (m/s) and direction

    at point P14 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm19.22 %

    10 %

    Current speed

    (m/s) and direction

    at point P14 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm21.08 %

    10 %

    Current speed

    (m/s) and direction

    at point P15 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm24.29 %

    10 %

    Current speed

    (m/s) and direction

    at point P15 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm25.35 %

    10 %

    Figure A-33: Current rose at points 13,14,15 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    57

    Current speed

    (m/s) and direction

    at point P16 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm20.56 %

    10 %

    Current speed

    (m/s) and direction

    at point P16 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm22.57 %

    10 %

    Current speed

    (m/s) and direction

    at point P17 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm48.19 %

    10 %

    Current speed

    (m/s) and direction

    at point P17 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm49.41 %

    10 %

    Current speed

    (m/s) and direction

    at point P18 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm54.48 %

    10 %

    Current speed

    (m/s) and direction

    at point P18 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm51.70 %

    10 %

    Figure A-34: Current rose at points 16,17,18 in Southwest and Northeast monsoon

  • LMDCZ project: Waves and coastal currents modeling (WP4)

    58

    Current speed

    (m/s) and direction

    at point P19 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm42.20 %

    10 %

    Current speed

    (m/s) and direction

    at point P19 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm34.24 %

    10 %

    Current speed

    (m/s) and direction

    at point P20 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm57.61 %

    10 %

    Current speed

    (m/s) and direction

    at point P20 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm45.24 %

    10 %

    Current speed

    (m/s) and direction

    at point P21 in SW

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm47.81 %

    10 %

    Current speed

    (m/s) and direction

    at point P21 in NE

    monsoon

    Above 1.5

    1.4 - 1.5

    1.3 - 1.4

    1.2 - 1.3

    1.1 - 1.2

    1.0 - 1.1

    0.9 - 1.0

    0.8 - 0.9

    0.7 - 0.8

    0.6 - 0.7

    0.5 - 0.6

    0.4 - 0.5

    0.3 - 0.4

    0.2 - 0.3

    0.1 - 0.2

    Below 0.1

    N

    Calm43.47 %

    10 %

    Figure A-35: Current rose at points 19,20,21 in Southwest and Northeast monsoon

    WAVE COMPUTATIONS AT REGIONAL SCALE AND LOCAL AREA OF GO-CONG USING TELEMAC MODEL SUITE