troposferde

Troposferde is a term used in some German-language meteorology and science fiction to denote the weather-active portion of a planet’s atmosphere, essentially the troposphere. In formal meteorology the standard term is Troposphäre; Troposferde is not a standardized term and its meaning can vary by author. Generally, Troposferde refers to the lowest atmospheric layer where most weather occurs, characterized by vertical mixing, humidity, clouds, and vigorous convection. In Earth science, this corresponds roughly to the region from the surface up to the tropopause, which sits at about 8 to 15 kilometers depending on latitude and season; near the surface, the boundary layer is strongly influenced by surface heating, cooling, and roughness. Temperature typically decreases with height in this layer, though lapse rates vary with moisture and altitude.

Because Troposferde emphasizes weather processes, discussions that use the term often focus on cloud formation, precipitation, wind shear, and air mass interactions within this layer. On other planets or in exoplanet studies, the concept is used analogously to describe the portion of the atmosphere where active weather would occur, with scale height and composition varying by planet.

Related concepts include the Troposphäre (troposphere), the Tropopause as its upper boundary, and higher atmospheric layers such as the Stratosphäre.