Hudson Bay is located in northeastern Canada and is the world’s second-largest bay - after the Bay of Bengal. It covers an area of roughly 1.2 million square kilometres.

In the winter months the bay freezes over and becomes an important feeding habitat for polar bears that hunt seals out on the ice. 

On the top left of the image the Winisk River can be seen, while on the right of the image the land area forms part of the Polar Bear Provincial Park. 

This week’s image of the week is of global ozone as captured by the new Sentinel-5 instrument mission.