Nordic Seas intermediate water leaves through the Denmark Straight and the Iceland Ridge. The densest overflow waters leave through the Faroe Bank Channel. The water masses that encompass the Nordic Seas are always changing in response to the local variations that occur between atmosphere-ocean fluxes and convection of intermediate to deep water. The Nordic Seas are found between the North Atlantic and the Arctic Ocean, both having variable surface water conditions. The Nordic Seas are complex in the variety of water masses it contains: two surface waters, three intermediate waters, and three deep waters. Figure 3 shows the water mass circulations that
Milky seas effect than the traditional blue or white milky seas effect seen by the rest of the world. It is not known whether this difference depends on the area, or simply a perception of a cyanic colour as being green. The phenomenon is known as "mareel" in Shetland. This term is derived from the Norn word "*mareld", which is itself derived from the Old Norse word "mǫrueldr", which is a compound of "marr" (mere, sea) and "eldr" (fire). Milky seas effect Milky seas, also called mareel, is a luminous phenomenon in the ocean in which large areas of seawater (up to )