From Glossary of Meteorology


"The mean pressure distribution (at sea level) for a time interval during which the positions of the stationary (steering) cyclones and anticyclones and the steering within a special circulation region remain essentially unchanged."

A Grosswetterlage is thus a certain large-scale circulation pattern that is mostly synonymous with a particular long wave regime.

Baur, F. 1951. Compendium of Meteorology. p. 825.

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