Research Portal

How Does Sound Travel in High Energy Environments? Effectiveness of Acoustic Monitoring Systems and Turbine Audibility Assessment

April 2017 – December 2020

The researchers are designing and implementing a long-term acoustic monitoring program to support tidal energy development in the Bay of Fundy. Specialized acoustic instrumentation was deployed for a two-month period in Grand Passage to advance understanding how turbulence affects the ability to

Geoscience » Tectonics and Crustal Structure

Paleogeographic Reconstruction and Source Rock De-Risking, Offshore Nova Scotia

February – November 2020

In this project GeoArctic modeled the tectonic evolution of the northern Central Atlantic to re-evaluate the syn-rift and early post-rift geological context of sedimentary basin formation.

Reducing Costs of Tidal Energy through a Comprehensive Characterization of Turbulence in Minas Passage

October 2017 – March 2020

Turbulence is a significant issue at every site being considered for in-stream tidal energy development.

Geoscience » Source Rock & Depositional Environment

Predictive Modelling of Sandstone Reservoir Quality in the Scotian Basin

May 2016 – December 2018

This project uses existing knowledge of inferred drainage basin areas and paleoclimate to model multiple river inputs to the Scotian Basin. The modelled sedimentary succession is compared with actual sediment thicknesses in the basin.

Going with the Flow II: Using Drifters to Address Uncertainties in the Spatial Variation of Tidal Flows

October 2017 – June 2018

Drifters are one of the oldest, simplest and most reliable methods for measuring ocean currents. Drifters also provide a simple, low risk platform from which to gather acoustic information along flow streamlines or ‘drift tracks’.

Geoscience » Spill Preparedness

Advanced Coastal Mapping to Support Hydrodynamic Modelling

April 2016 – June 2018

Nova Scotia’s Atlantic coast exhibits a variety of shorelines that may be vulnerable to contamination in the event of an offshore oil spill. In turn, variable currents, changing water levels, shoals, and exposed seaside conditions make effective spill response difficult for tidal inlets.

Nova Scotia Small Tidal Test Centre: Gap Analysis and Business Case

November 2017 – March 2018

As the tidal energy industry develops, there is increasing interest in the prospects for small-scale tidal energy development. Building small-scale tidal energy installations has promise given the number of locations where they can be used.

Measuring the Acoustic Detection Range of Large Whales from an Ocean Glider to Improve an Acoustic Whale Alert System for use by the Offshore Marine Industry in Atlantic Canada

April 2017 – January 2018

Researchers investigated a novel and in-development passive acoustic monitoring (PAM) system for use as a marine mammal detection technique. The work builds on a current research initiative between Dalhousie University and Woods Hole Oceanographic Institute (WHOI).

Finite Element Analysis to Assess Fish Mortality from Interactions with Tidal Turbine Blades

February – December 2017

The research project used finite element analysis (FEA) to simulate the impact of a tidal turbine blade on fish, and assess whether mortality of marine life can be expected in such an event.

Turbulence Dissipation Rates from Horizontal Velocity Profiles at Mid-Depth in Fast Tidal Flows

December 2017

This study characterizes the turbulence in a tidal channel in the Bay of Fundy that has been identified for development as a tidal power resource.