Meteorological and Oceanographic Data Relevant to the Proposed Westridge Terminal Shipping Expansion
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TRANS MOUNTAIN PIPELINE ULC METEOROLOGICAL AND OCEANOGRAPHIC DATA RELEVANT TO THE PROPOSED WESTRIDGE TERMINAL SHIPPING EXPANSION REPORT NOVEMBER 2013 ISSUED FOR USE EBA FILE: V13203022 LIMITATIONS OF REPORT This report and its contents are intended for the sole use of Trans Mountain Pipelines LLP and their agents. EBA Engineering Consultants Ltd. does not accept any responsibility for the accuracy of any of the data, the analysis, or the recommendations contained or referenced in the report when the report is used or relied upon by any Party other than Trans Mountain Pipelines LLP, or for any Project other than the proposed development at the subject site. Any such unauthorized use of this report is at the sole risk of the user. Use of this report is subject to the terms and conditions stated in EBA’s Services Agreement. EBA’s General Conditions are provided in Appendix D of this report. EBA Engineering Consultants Ltd. operating as EBA, A Tetra Tech Company Oceanic Plaza, 9th Floor, 1066 West Hastings Street Vancouver, BC V6E 3X2 CANADA p. 604.685.0275 f. 604.684.6241 METEOROLOGICAL AND OCEANOGRAPHIC DATA RELEVANT TO THE PROPOSED WESTRIDGE TERMINAL SHIPPING EXPANSION EBA FILE: V13203022 | NOVEMBER 2013 | ISSUED FOR USE EXECUTIVE SUMMARY Kinder Morgan has proposed an expansion of the Westridge Marine Terminal, located in Burrard Inlet east of Second Narrows, to increase the quantity of crude oil shipped through the Terminal. EBA Engineering Consultants Ltd., operating as A Tetra Tech Company (EBA), was engaged by Kinder Morgan Canada to assemble, organize and summarize relevant oceanographic and meteorological data to support the navigational, environmental, risk assessment and oil spill modelling studies that are required for permitting and design of terminal and shipping route. The environmental parameters that will be utilized in the required studies include wind, air temperature, humidity, solar insolation, visibility, precipitation, water level, water salinity and temperature, current and wave climate. Data and information with respect to these parameters are obtained from sources ranging from government agencies to research organizations and universities. The data presented in this report are divided into five main sections along the potential shipping route (Burrard Inlet, Strait of Georgia, Gulf and San Juan Islands, Juan de Fuca Strait, and Pacific Ocean) between the Pacific Ocean and the Westridge Terminal at Second Narrows. The data will be used in other studies to determine potential hot spots for shipping accidents, formulate oil spill scenarios and estimate potential environmental damage. This information will also be useful in strategizing the ship traffic management and scheduling in order to minimize accidents. Hourly metocean data from 29 met stations and six buoys throughout the study area is presented in this report with analyses of the observed patterns. Wind roses for all 29 meteorological stations and time series plots of hourly winds for 2011 are contained in Appendix A. Wave roses for all six buoys are contained in Appendix B. Time series plots of hourly air temperature, dewpoint and visibility for 2011 are illustrated for each station in Appendix C. Hourly data files are contained on the data disk accompanying this data report. i R-01-MetOcean_Report-Nov-IFU.docx METEOROLOGICAL AND OCEANOGRAPHIC DATA RELEVANT TO THE PROPOSED WESTRIDGE TERMINAL SHIPPING EXPANSION EBA FILE: V13203022 | NOVEMBER 2013 | ISSUED FOR USE ii R-01-MetOcean_Report-Nov-IFU.docx METEOROLOGICAL AND OCEANOGRAPHIC DATA RELEVANT TO THE PROPOSED WESTRIDGE TERMINAL SHIPPING EXPANSION EBA FILE: V13203022 | NOVEMBER 2013 | ISSUED FOR USE TABLE OF CONTENTS EXECUTIVE SUMMARY........................................................................................................................... i 1.0 INTRODUCTION ........................................................................................................................... 1 2.0 STUDY AREA AND SHIPPING CORRIDOR.............................................................................. 1 2.1 General Meteorological and Oceanographic Conditions.......................................................................2 2.1.1 Meteorology ..............................................................................................................................2 2.1.2 Oceanography ..........................................................................................................................3 3.0 OBSERVATIONAL DATA ............................................................................................................. 3 3.1 Meteorology and Wave Climate.............................................................................................................3 3.1.1 Winds........................................................................................................................................4 3.1.2 Waves.......................................................................................................................................5 3.1.3 Other Meteorological Parameters.............................................................................................5 3.2 Currents .................................................................................................................................................6 3.3 Water Properties....................................................................................................................................6 3.4 Water Levels..........................................................................................................................................7 4.0 SYNTHESIS OF ENVIRONMENTAL CONDITIONS................................................................. 7 4.1 Burrard Inlet ...........................................................................................................................................7 4.1.1 General Oceanographic Descriptions.......................................................................................7 4.1.2 Meteorology ..............................................................................................................................8 4.1.3 Westridge Terminal (Second Narrows) – First Narrows...........................................................8 4.1.3.1 Tides and Water Level.................................................................................................9 4.1.3.2 Currents .......................................................................................................................9 4.1.3.3 Wave Climate ..............................................................................................................9 4.1.4 First Narrows – Burrard Inlet Entrance .....................................................................................9 4.1.4.1 Tides and Water Level.................................................................................................9 4.1.4.2 Currents .......................................................................................................................9 4.1.4.3 Wave Climate ............................................................................................................10 4.2 Strait of Georgia...................................................................................................................................10 4.2.1 General Oceanographic Descriptions.....................................................................................10 4.2.2 Meteorology ............................................................................................................................11 4.2.3 Point Grey – Sturgeon Bank – Sand Heads ...........................................................................12 4.2.3.1 Tides and Water Level...............................................................................................12 4.2.3.2 Currents .....................................................................................................................12 4.2.3.3 Wave Climate ............................................................................................................12 4.2.4 Sand Heads – Roberts Bank – Saturna Island.......................................................................13 4.2.4.1 Tides and Water Level...............................................................................................13 4.2.4.2 Currents .....................................................................................................................13 4.2.4.3 Wave Climate ............................................................................................................13 iii R-01-MetOcean_Report-Nov-IFU.docx METEOROLOGICAL AND OCEANOGRAPHIC DATA RELEVANT TO THE PROPOSED WESTRIDGE TERMINAL SHIPPING EXPANSION EBA FILE: V13203022 | NOVEMBER 2013 | ISSUED FOR USE 4.3 San Juan and Gulf Islands...................................................................................................................14 4.3.1 General Oceanographic Descriptions.....................................................................................14 4.3.2 Meteorology ............................................................................................................................14 4.3.3 Boundary Pass .......................................................................................................................15 4.3.3.1 Tides and Water Level...............................................................................................15