• Sea ice and iceberg
• Lake and River ice

ASL’s Services group has developed an extensive library of algorithms to extract ice information from upward looking sonars, especially the IPS. These tools have been used to support both offshore oil and gas projects in ice- infested waters as well as research scientists investigating the impacts of climate change on sea ice.

ASL Environmental Sciences Inc. can provide data products for ADCP wave and current measurements, Ice Profiling sonar measurements, CTDs, turbidity, dissolved oxygen and other water quality data. Besides routine data products, we can develop customized data products to help you understand your unique problem.

ASL has developed real-time ice measurement systems over the past decade.

ASL numerical modeling capabilities include Arctic and sea ice applications such as contributions to the development of the Canadian Ice Service operational ice models for the Canadian East Coast and the Canadian Beaufort Sea.

ASL now offers more capabilities for sea ice analyses with the availability of enhanced remote sensing through a merger with Borstad Associates. This provides improved data products for characterization of sea ice. Using historical ice data sets from many sources, ASL provides pertinent ice information for input to engineering design.

We conduct analyses on data collected with ASL’s flagship echosounder, the Acoustic Zooplankton Fish Profiler (AZFP). We also analyze data from other manufacturers including Simrad’s © EK Series of instruments (EK60, EK80, WBAT). This includes single and split-beam, multifrequency and broadband echosounders.

Our team uses a range of the latest software tools to process your data. Our team uses Echoview hydroacoustic data processing software and builds customized workflows using R, Matlab, or Python. We will perform data QA/QC checks, identify and remove boundaries, de-noise, dB difference, identify and analyze targets, and more.

We offer flexible approaches to scientific data reporting. Our team can deliver customized reports on fisheries and ecosystem surveys, environmental monitoring programs, write scientific manuscripts, comply with federal and regulatory guidelines, and conduct studies for offshore energy development.

ASL’s staff of oceanographers, scientists and engineers are specialists in all aspects of physical oceanography and limnology, including currents/waves/tides, water quality (temperature, salinity, turbidity, chlorophyl, DO), sediment transport/turbidity flows, ice, and underwater acoustics. We draw upon in-house experts in numerical modelling and remote sensing as required to meet our clients’ needs.

As well as oceans and coastal waters, ASL assists clients with limnological freshwater systems, including rivers, streams, lakes and reservoirs. In most cases, currents and water properties are highly important. ASL can help with understanding complex water quality issues such as eutrophication using its pool of water quality loggers such as dissolved oxygen, chlorophyll and turbidity. We have other tools as well such as numerical modelling and remote sensing.

Marine acoustics involves either passive measurements (for instance measurements of ambient noise, marine mammals, or vessel traffic) or active measurements of backscatter from targets such as ice, plankton, or fish. ASL has instruments which use sound to make both types of measurements.

• Currents and Waves: simulating coastal and open-water hydrodynamics

Comprehensive project workflow, including instrument provision and deployment, data collection, model execution, analysis, and interpretation to provide actionable insights.

Seamless integration of field measurements (currents, waves, ice, turbidity) with numerical modeling to validate and refine simulations for high confidence in real-world environments.

Decades of expertise dating back to the 1980s in the Beaufort Sea, with projects across offshore regions like Nova Scotia, the Fraser River Delta, and the Columbia River.

A versatile measurement system combining Doppler profilers, OBS sensors, scanning sonar, wave and current sensors, and the IRIS control module—used widely, including at BC’s Roberts Bank.

3D numerical modeling of sediment suspension and deposition during submarine power cable removal and installation off Vancouver Island (Galiano Ridge), backed by in-situ current and turbidity data.

Measurements and high-resolution modeling of flow and suspended sediment in Waneta Dam’s forebay to assess construction impact on downstream fisheries habitat.

Combines real-time measurements (currents, waves, turbidity, seabed imaging) with numerical simulations to explore “what-if” scenarios and guide environmental decision-making.