Hydrology Analysis Sungai Lereh, Malacca
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AQSP/R.No:10072/Final/August 2016 Page | 1 Extended Report: Hydrology Analysis Sungai Lereh, Malacca PAGE INTENTIONALLY LEFT BLANK AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Extended Report: Hydrology Analysis Sungai Lereh, Malacca COASTAL HYDRAULIC STUDY FOR “THE PROJEK PENAMBAKAN LAUT SELUAS 120 EKAR DI MUKIM KLEBANG BESAR”, CENTRAL DISTRICT OF MALACCA, MALACCA AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Document Information Coastal Hydraulic Study for “The Projek Penambakan Laut Project Title Seluas 120 Ekar Di Mukim Klebang Besar”, Central District of Malacca, Malacca (Extended Report) Subject Sungai Lereh,Malacca Hydrology Analysis Sponsoring/Monitoring Awan Plasma Sdn Bhd Agency Performing Aqvaspace Sdn Bhd Organization Document No. AQSP/RPT/01-2018/ AWANPLASMA/MDL/10103 Number of Pages Reclamation at Malacca MIKE 21 Mike 11 Key Words Hydrodynamic Model Hydrology AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca DECLARATION FROM HYDRAULIC STUDY TEAM LEADER TITLE : Extended Hydrology Analysis for Sg. Lereh Malacca “COASTAL HYDRAULIC STUDY FOR “THE PROJEK PENAMBAKAN LAUT SELUAS 120 EKAR DI MUKIM KLEBANG BESAR”, CENTRAL DISTRICT OF MALACCA, ” TEAM LEADER : Mr. KARTHIGEYAN VEERASAMY I declare the following: i) I have read and checked the content of this Hydraulic Report; ii) My study team members have conducted the study professionally acceptable methodologies; iii) The study findings are correct to the best of my knowledge; and have not been altered in any manner; iv) The mitigating measures proposed (whenever relevant) to the best of my knowledge are reliable, practical and adequate with the relevant legal requirement; and v) Myself and my team shall be accountable for any misleading information in any part of the report. Signature & Official Stamp : Name : KARTHIGEYAN A/L VEERASAMY I/C No. : 791203 –12- 5027 Position : DIRECTOR Company/Organization : AQVASPACE SDN BHD Date : MARCH 2018 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca TABLE OF CONTENTS ABBREVIATIONS LIST OF FIGURES LIST OF TABLES 1 INTRODUCTION 1 1.1 Background 1 1.2 Project Objectives 2 2 PROJECT OVERVIEW 3 3 STUDY AREA 12 3.1 Site Assessment 12 3.2 Climate 21 3.3 Tourism 21 3.4 Environmentally Sensitive Area 21 3.5 Hydrological Characteristics of Project Area 22 3.6 Meteo-Marine Scenarios 23 3.6.1 Melaka River System 28 3.6.2 Sungai Melaka Basin 28 3.6.3 Hydrological data 31 4 DATA COLLECTION 36 4.1 Coastal Data Measurement 36 4.1.1 Bathymetry 36 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca 4.1.2 Current Measurement 36 4.1.3 Water Level Measurement 36 4.1.4 Seabed Sediment Sampling 37 4.2 River Hydrology Data Measurement 45 4.2.1 River Hydrology Measurement 45 4.2.2 Current Measurement 47 4.2.3 Water Level Measurement 48 4.2.4 River Cross section 49 4.2.5 River Discharge 49 4.2.6 Rainfall Data 75 5 MODEL DESCRIPTION AND SETUP 76 5.1 Hydrodynamic Model for Coastal Modelling 76 5.1.1 Model Domain 76 5.1.2 Grid Generation and Bathymetry 76 5.1.3 Boundary Conditions 80 5.1.4 Calibration and Verification 80 5.1.4.1 Water Level 83 5.1.4.2 Currents 83 5.2 Hydrological Model 89 5.2.1 Introduction 89 5.2.2 Model Setup 89 5.2.3 Hydrodynamic Model 92 5.2.4 Model Calibration 93 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca 5.2.5 Calibration Index 94 5.2.6 Calibration Water Level and Current Speed 95 5.2.7 Extreme Value Analysis 97 5.2.7.1 Long-term Simulation of Hydrological 97 Model 5.2.8 Selection of Best Suited Frequency Distribution 99 6 MODEL RESULTS 106 6.1 Coastal Modelling Scenarios 106 6.1.1 Extracted Result from Water Level Impact into 109 aaaaaSg. Lereh and Sg. Udang 6.2 Scenario Simulation 113 7 CONCLUSION 115 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca APPENDICES Appendix A Marine Data Collection Report AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca ABBREVIATIONS ADCP Acoustic Doppler Current Profiler CD Chart Datum DHI Danish Hydraulic Institute DID Department of Irrigation and Drainage FM Flexible Mesh HD Hydrodynamic Model mg/l Milligram per Litre m/mth Meter per Month MSL Mean Sea Level MT Mud Transport Model NE Northeast RMSE Root Mean Square Error SW Southwest SW Spectral Wave Model AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca LIST OF FIGURES Figure 2.1 Aerial Photograph of the Strait of Malacca 4 Figure 2.2 Proposed Reclamation Area at Malacca (Project Site) 5 Figure 2.3 Project Location Map 6 Figure 2.4 Overview of Revetment around Reclamation area at Project 7 Site Figure 2.5 Drawing for Cross-section of Revetment 8 Figure 2.6 Area to be reclaimed 9 Figure 2.7 Drawing for Breakwater around Sg.Lereh River Mouth 10 Figure 2.8 Drawing for Cross-section of Breakwater 11 Figure 3.1 District of Melaka 13 Figure 3.1a Aerial Photograph of Study Area 14 Figure 3.1.1 Pulau Depan Tg Keling 16 Figure 3.1.2 Kampung Hailam 16 Figure 3.1.3 Everly Resort Hotel 16 Figure 3.1.4 Sungai Lereh River Mouth 17 Figure 3.1.5 Three Towers 17 Figure 3.1.6 Dredging 17 Figure 3.1.7 Past Reclamation 18 Figure 3.1.8 Klebang Besar 18 Figure 3.1.9 Tidal Gate 18 Figure 3.1.10 Sungai Klebang Besar River Mouth 19 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Figure 3.1.11 Barge 19 Figure 3.1.12 Jetty at Pulau Upeh 19 Figure 3.2 View of Groin and Sand Dune at Study Area 15 Figure 3.3 Outlook of Sg. Lereh 20 Figure 3.4 Environmentally Sensitive Area (Pulau Upeh) around 22 Project Site Figure 3.5 Monthly Average High and Low Temperature Round the 22 Year in Malacca Figure 3.6 Monthly Average Precipitation and Rainfall Days Round 23 the Year Malacca Figure 3.7 Monsoons season affecting Melaka State 24 Figure 3.8 Annual Wind Rose Plot at Project Area 25 Figure 3.9 Monthly Wind Rose for NE Monsoon 26 Figure 3.10 Monthly Wind Rose for SW Monsoon 27 Figure 3.11 Main river basins in the Flood Mitigation Master for 29 Melaka Figure 3.12 Sg. Melaka river basin 30 Figure 3.13 Melaka River Study extent 30 Figure 3.14 Main River Distribution at Malacca State 31 Figure 3.15 Rainfall and streamflow stations in the study area 32 Figure 3.16 Monthly variations of rainfall at study area 33 Figure 3.17 Isohyets of mean annual rainfall 33 Figure 3.18 Isohyets of rainfall IDF-Curves depths (mm) for 100-yr 34 ARI Storms (durations of 0.5,1,3 and 6 hours) AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Figure 3.19 Isohyets of rainfall IDF-Curve depths (mm) for 100-yr ARI 35 Storms (durations of 0.5,1,3 and 6 hours) Figure 4.1 Bathymetry Survey (Primary Data) at Project Area 38 Figure 4.2 Bathymetry Survey (Secondary Data) around Strait of 39 Malacca Figure 4.3 Locations of ADCPs Deployment 40 Figure 4.4 Measured Current Speed 41 Figure 4.5 Measured Current Direction 42 Figure 4.6 Measured Water Level 43 Figure 4.7 Location for Seabed Sediment Collection around Project 44 Area Figure 4.8 Location of Measurement Point of Sungai Lereh and 46 Sungai Udang Figure 4.9 Current and Water Level Measurement Locations at Sungai 47 Lereh and Sungai Udang Figure 4.10 River Cross Section at Sungai Lereh 49 Figure 4.11 River Cross Section at Sungai Udang 50 Figure 4.12 Water Level at station TG1 at Sungai Lereh Melaka 51 Figure 4.13 Water Level at station TG2 at Sungai Lereh 52 Figure 4.14 Water Level at station TG3 at Sungai Udang 52 Figure 4.15 River Cross Section at Sungai Lereh (CH1-CH3) 53 Figure 4.16 River Cross Section at Sungai Lereh (CH4-CH6) 54 Figure 4.17 River Cross Section at Sungai Lereh (CH7-CH9) 55 Figure 4.18 River Cross Section at Sungai Lereh (CH10-CH12) 56 AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Figure 4.19 River Cross Section at Sungai Lereh (CH13-CH14) 57 Figure 4.20 River Cross Section at Sungai Udang (CH1-CH3) 58 Figure 4.21 River Cross Section at Sungai Udang (CH4-CH6) 59 Figure 4.22 River Cross Section at Sungai Udang (CH7-CH9) 60 Figure 4.23 River Cross Section at Sungai Udang (CH10-CH12) 61 Figure 4.24 River Cross Section at Sungai Udang (CH13-15) 62 Figure 4.24 Drawing For River Cross Section at CH6 Sungai Lereh 63 Figure 4.25 Flow Rate, Q (Discharge) at Sungai Lereh (07/02/2018) 64 Figure 4.26 Flow Rate, Q (Discharge) at Sungai Lereh (08/02/2018) 65 Figure 4.27 Flow Rate, Q (Discharge) at Sungai Lereh (17/02/2018) 66 Figure 4.28 Drawing For River Cross Section at CH4 Sungai Udang 72 Figure 4.29 Flow Rate, Q (Discharge) at Sungai Udang (07/02/2018) 72 Figure 4.30 Flow Rate, Q (Discharge) at Sungai Udang (08/02/2018) 72 Figure 4.31 Location of Hydrological Station at Melaka Tengah 75 Figure 5.1 Project Area - Model Domain 77 Figure 5.2 Grid Distribution of Flexible Mesh at Model Domain 78 Figure 5.3 Model Bathymetry 79 Figure 5.4 Bathymetry of the Project Area 80 Figure 5.5 Location of Boundaries 81 Figure 5.6 Water Levels at Three Open Boundaries 82 Figure 5.7 Tidal Stations around Project Area 84 Figure 5.8 Model Calibration: Comparison between Predicted and 85 Simulated Water Level AQSP/R.No:10103/Extended Report/March 2018 Extended Report: Hydrology Analysis Sungai Lereh, Malacca Figure 5.9 Model Calibration: Comparison between