-- Name --<br/>Marine Isoline<br/><br/>-- Definition --<br/>An isoline representing a particular value of some marine physical or chemical phenomenon such as temperature, salinity or wave height.<br/><br/>-- Description --<br/>A Marine Contour representing a particular value of some phenomenon. The geometry of the contour is a GM_Multicurve, i.e. may be formulated from several curves, all representing the same value e.g. 15 degrees celsius.<br/>