2001•气象学报：英文版Requires access

INVESTIGATION ON GEOSTROPHIC ADJUSTMENT,FRONTOGENESIS AND OSCILLATIONS

PAN Pan, Yinong, Wu, Rongsheng

Abstract

Geostrophic adjustment and frontogenesis are examined by means of the 2-D ARPS model.The simulation shows that, without the large-scale forcing, both the frontogenesis and frontolysis are observed during the geostrophic adjustment process and the intensity of the front oscillates in the case of no discontinuity. The convergence (divergence) induced by the secondary circulation is the most important factor for frontogenesis (frontolysis) at the top and bottom boundaries. The amplitude and period of oscillation are dependent on the initial atmospheric stratification and the Coriolis frequency, and they are related to the inertio-gravity wave.

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Key concepts: Frontogenesis, Geostrophic wind, Climatology, Front (military), Forcing (mathematics), Stratification (seeds), Geology, Oscillation (cell signaling)