Isopycnal

Isopycnals /ˌsəˈpɪknl/[1] are layers within the ocean that are stratified based on their densities and can be shown as a line connecting points of a specific density or potential density on a graph. Isopycnals are often displayed graphically to help visualize "layers" of the water in the ocean or gases in the atmosphere in a similar manner to how contour lines are used in topographic maps to help visualize topography.

  1. ^ "Isopycnal". Dictionary.com. Retrieved May 29, 2018.