Are there images north of 60° North on your site?
Yes, you may find them at http://weather.gc.ca/satellite/index_e.html towards the end of the page.
Images of areas north of 60° may look slightly different because they come from a polar orbiting satellite. The most commonly used images over southern Canada are obtained from a satellite in a geosynchronous orbit. This means they revolve around the earth in 24 hours, at a very high (34,880 km) altitude over the equator.
Due to this, these satellites remain over a fixed point of the earth (in South America for satellites that can view the Americas). Because geosynchronous satellites typically remain over the equator, the higher the latitude of the area we want to observe, the view becomes distorted due to the curvature of the earth. To obtain more useful pictures at the higher latitudes (north of 60°), we need a different satellite known as a polar-orbiting satellite.
Instead of staying high over one place, a polar orbiting satellite moves very quickly (orbits in less than two hours) at much lower altitude (around 800 km). While geosynchronous satellites take a picture of an entire hemisphere (a disk showing the planet earth), polar-orbiting satellites are so low that they only take in a small swath below the satellite at each orbit.
At present we receive data from the National Oceanographic and Atmospheric Administration (NOAA) polar orbiting satellites, and we post images of most of Canada’s northern regions including the Yukon, the Northwest Territories and Nunavut.
Top of Page