JASCO Research - Sound Science and Technical Excellence

JASCO Research is an international company with over 25 years experience providing consulting services to the Marine Industrial, Oceanographic, Oil & Gas, Fisheries, Defence and IT sectors.

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JASCO NEWS:

JASCO’s Systems Division has won a competitve contract with Defence Research & Development Canada to develop energy harvesting systems for eventual use by the Canadian Forces to provide power requirements for autonomous systems such as sensors, computer interfaces, unmanned aerial vehicles, and communications.
JASCO continues to provide overall noise control consultancy to the Sakhalin II project, working closely with the industrial stakeholders and an independent scientific advisory panel to ensure the safeguard of a critically endangered population of Western Gray Whales. The scientific oversight process is conducted under that aegis of the International Union for Conservation of Nature, IUCN.
JASCO will perform underwater sound measurement studies for regulatory compliance of seismic programs performed by most major exploration companies in summer 2008. JASCO’s autonomous Ocean Bottom Hydrophone (OBH) systems and new Autonomous Multi-Channel Acoustic Recorders (AMARS) will be deployed at survey areas worldwide to capture high-resolution continuous sound level measurements on short and long term studies.
JASCO’s sound modelling software systems have been enhanced with improved source models for airgun arrays, sonars and pile driving. The source models are coupled with advanced propagation models to predict sound levels in the near field and out to several hundred kilometers from the source positions. The models take into account source directivity and all ocean and seabed geoacoustic parameters to provide site-specific estimates of noise footprints from many types of industrial operations. The models also include marine mammal species-specific audiometric filters that can be used to estimate impacts on those species.
JASCO has recently completed several pile driving noise assessments including computer model predictions and field measurements of pile driving sounds at projects in North America and Australia. The very-shallow water at pile driving sites require specialized acoustic models to accurately predict pressure fields resulting from sound propagation through the seabed.
JASCO’s Systems Division has developed a high-speed multi-processor computing system for rapid analysis of large acoustic datasets. This system, operating on a SUN-GRID architecture, implements ambient and industrial sound level measurement and is capable of performing automatic detections of several types of transient and medium-duration sounds, including vessel noise, seismic survey sounds and marine mammal vocalizations. An advanced transient classification system has been developed to automatically identify vocalizations from several marine mammal species. It is based on analysis of spectral features of the received sounds. The system can process 16 kHz acoustic data at 600 times the acquisition speed. It is being used to process multi-Terabyte datasets collected in several of JASCO’s projects.
JASCO’s Systems Division has developed directional acoustic systems using accelerometer sensors. These systems have been installed in towed acoustic arrays and in JASCO’s Autonomous Multi-Channel Acoustic Recorders (AMARS). The directional sensors can replace phased array hydrophone systems that have historically been required to measure the direction from which received sounds originate.
JASCO’s scientific staff increased by over 30% in 2007-08. The new staff includes a mix of junior and senior scientists to maintain JASCO’s range of capabilities from field experiment design and fieldwork through complex data analysis and result presentations. Our inventory of field equipment including acoustic recording systems, cabling and data acquisition systems has increased substantially. We are capable of rapid responses to client requirements for acoustic field and modeling work worldwide.