North wall
From Glossary of Meteorology
North Wall
(
Also called cold wall.) The steep water-temperature gradient between the Gulf Stream and 1) the Slope Water inshore of the Gulf Stream or 2) the Labrador Current north of the Gulf Stream.
Also called cold wall.) The steep water-temperature gradient between the Gulf Stream and 1) the Slope Water inshore of the Gulf Stream or 2) the Labrador Current north of the Gulf Stream.