Science at the North Pole

On this episode of “Ask NRCan,” research scientist David Mosher talks about his experiences travelling to the North on a Canadian Coast Guard icebreaker to map the Arctic Ocean floor.

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Satellite Navigation: The familiar blue dot could soon mark a better spot

Getting from point A to point B using your smartphone’s web mapping application with the familiar pulsing blue dot is part of our daily lives — thanks to satellite system receivers that use global positioning systems (GPS) to give location and time information. Positioning technology is evolving, and today a typical smartphone can pinpoint a person’s location within a few metres, which is adequate for most personal use. But for a future that includes autonomous driving, precision agriculture and natural disaster early warning systems, centimetre-level accuracy will be crucial.

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Measuring Lake Ice Thickness From Space (Byte-Sized Science)

Research scientist Joost Van der Sanden explains how his team is developing a method to map the thickness of lake ice cover from space by analyzing a combination of radar satellite imagery and fieldwork data. Information on lake ice thickness supports the operation of seasonal roads that facilitate valuable land transport to isolated Canadian sites (e.g., communities, mines) and can be used as an indicator of climate change.

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