overgangslinje

Overgangslinje is a term used to describe a line or boundary that marks a transition between different states, conditions, or regimes within a system. It can denote where a property changes qualitatively or where different regions, phases, or categories meet. The concept is widely used across technical and scientific disciplines, often as a convenient way to visualize how a system shifts from one behavior to another.

In practice, overgangslinje appears in several fields. In meteorology, weather maps may depict transitions between air masses along a transition line that separates warm and cold fronts. In physics and chemistry, it can refer to a boundary in a phase diagram where a substance changes phase under varying pressure and temperature. In geology and geomorphology, it can mark the boundary between different rock types or sedimentary layers. In cartography and data visualization, overgangslinje helps to delineate zones with distinct classifications or properties on a map or chart.

Etymologically, the word combines overgang (transition) with linje (line) in Norwegian. While it is a general term, its precise meaning depends on the context and the property being studied. The concept is related to, but not identical to, more specific terms such as phase boundaries, fronts, or isopleths, which describe concrete, well-defined transitions in particular disciplines.

See also: phase boundary, weather front, isopleth, boundary, front.