POLARIS: A new network of seismographs and MT stations in Canada
LAMONTAGNE, Maurice, Geological Survey of Canada, 7 Observatory Crescent, Ottawa, Ont., K1A 0Y3, email@example.com, ASUDEH, Isa, Geological Survey of Canada, ATKINSON, Gail, Carleton Univ., Ottawa, ON, CANADA; BOSTOCK, Michael, Univ. British Columbia, Vancouver, CANADA; EATON, David E., Univ. Western Ontario, London, ON, CANADA; FERGUSON, Ian J., Dept. Geological Sciences, Univ. Manitoba, Winnipeg, CANADA; THOMSON, Colin, Queen's Univ., Kingston, ON, CANADA; ADAMS, John, JONES, Alan G., CASSIDY, John, SNYDER, David,
The Portable Observatories for Lithospheric Analysis and Research Investigating Seismicity (POLARIS) is a new earth science program funded by the Canada Foundation for Innovation to create a network of satellite-linked observatories in Canada. Researchers from universities, governments and the industry are joined in a multi-disciplinary studies of subcontinental mantle structure and earthquake hazards. The POLARIS network includes arrays of three-component broadband seismograph and magnetotelluric (MT) mobile field systems that deploy satellite telemetry to broadcast their data to central locations in Ontario and British Columbia. The installation of the POLARIS network is due to begin this Fall and to continue for four years until the network is fully installed. The initial focus of the POLARIS network is on the three-dimensional imaging of the deep structure of the Slave Province in Canada's NWT and on the earthquake hazards studies in the populated regions of southern Ontario and southwest British Columbia. A seismograph array of 30 stations will be installed in each of the three regions. The MT array of 30 stations is divided into 10 continuous-recording elements that will be co-installed at the seismograph stations and 20 mobile elements that will cover all the POLARIS target arrays as well as being available for research in other parts of Canada. The POLARIS network is a mobile infrastructure and the focus of research will extend to all other regions of Canada after the initial few years of operation. The POLARIS data is available live at the central stations and a select few or all of the data channels can be permanently connected to the Internet. The POLARIS network has many research potentials some of which include testing the Rapid Warning Systems for ground shaking in the urban areas of Canada, developing new fine-scale imaging techniques using the scattered wavefield and investigating geomagnetically induced currents that can cause major disruptions to electrical and pipeline infrastructure.