Section 3.10: Site Plans and Technical Data - Rick Neufeld Comments

Northern Gateway Pipelines Inc.
Section 3.10: Site Plans and Technical Data
Table of Contents
Figure 4-4 Mooring Load Monitoring Alarms (Source: Harbour & Marine
Engineering)
4.14 Metocean Monitoring System
Meteorological and oceanographic sensors will be installed at Kitimat Terminal to monitor local
environmental conditions at the tanker berths. These sensors will provide real time data including wind
speed, wind direction, barometric pressure, temperature, visibility, tidal changes, wave height, wave
direction, current speed, and current direction. This information is critical since the environmental
conditions can have a significant effect on vessel handling during the berthing and un-berthing
manoeuvres and can cause vessel movements while the vessel is moored at the berth. The environmental
sensors can include:
An onshore weather station typically located on the roof of the control room building or in some other
exposed location near the tanker berths. The station will be capable of logging the full range of
atmospheric conditions including wind speed and direction, barometric pressure, humidity, temperature,
rainfall, snowfall, and visibility;
An offshore buoy sensor(s) anchored near the terminal and capable of measuring wave profile, wave
direction and current;
A non-contact wave-profile / tide laser mounted on the berth structure and capable of measuring wave
height, wave profile, and tide level and trend; and,
A Doppler current meter immersed at the berth and capable of measuring current speed and direction at
fixed depths or over the entire water column. In addition, an offshore sea-bed mounted Acoustic Doppler
Current Profiler (ADCP) sensor with wave profiling capabilities could be used.
January 20, 2010 FINAL - Rev. 0 Page 4-11