Density Inversions in Canadian Eastern Arctic Waters

Abstract

AMONG the hydrographic results of the Calanus expeditions of 1949–51 in Ungava Bay, Hudson Strait and Frobisher Bay, sponsored by the Fisheries Research Board of Canada, are twenty-two instances of density inversion showing unstable conditions in the sea. They were observed at twenty stations (two stations showing inversion at two different depths) out of a total of forty-eight stations occupied during the three seasons. Six of the inversion stations were in Ungava Bay, one in the Button Islands north of Cape Chidley, four in Hudson Strait between Wake-ham Bay and Lake Harbour, and the remainder in Frobisher Bay.