Heini Wernli

TL;DR: The emergence of meteorology as a rational science began around the turn of the twentieth century when Max Margules, Hermann Helmholtz, Felix Exner, and Vilhehn Bjerknes formulated the theoretical basis for what was previously considered an empirical science with a qualitative application to weather forecasting and climatology as mentioned in this paper.

TL;DR: The Lagrangian Analysis Tool (LAGRANTO) trajectory model identified specific days when stratosphere-to-troposphere transport was optimal to elevate surface ozone (O3) levels as discussed by the authors.

TL;DR: In this paper, the COSMOiso model is used for simulating a winter storm event in January 1986 over the eastern United States associated with intense frontal precipitation, and the modelled isotope ratios in precipitation and water vapour are compared to spatially distributed δ18O observations.

TL;DR: In this article, the authors investigated the origin of seasonal circulation anomalies by identifying individual Arctic anticyclones and analyzing the air mass transport into these systems, and revealed that these episodic upper-level induced Arctic ants are relevant for generating seasonal circulation anomaly.

TL;DR: In this paper, the role of extratropical cyclones and fronts for the atmospheric freshwater flux over the Southern Ocean is analyzed based on the Interim ECMWF Re-Analysis (ERA-Interim).