Before revision: Oceanography Major North Atlantic currents The Labrador Sea is about deep and wide where it joins the Atlantic Ocean.
After revision: Natural Resources Canada uses a slightly different definition, putting the northern boundary of the Labrador Sea on a straight line from a headland on Killiniq Island abutting Lady Job Harbour to Cape URLOceanography Major North Atlantic currents The Labrador Sea is about deep and wide where it joins the Atlantic Ocean.