The tropopause layer plays a key role in manifold processes in atmospheric chemistry and
physics. Here we compare the representation and characteristics of the lapse rate …

Tropopause folds are intimately linked to upper level frontogenesis and jet stream dynamics.
They play an important role for stratosphere‐troposphere exchange, the dynamical coupling …

Accurate depictions of the tropopause and its changes are important for studies on
stratosphere–troposphere exchange and climate change. Here, the fidelity of primary lapse …

In this study the depth of the atmospheric boundary layer (ABL) over the Tibetan Plateau
was measured during a regional radiosonde observation campaign in 2008 and found to be …

Abstract A global climatology (1979–2012) from the Modern-Era Retrospective Analysis for
Research and Applications (MERRA) shows distributions and seasonal evolution of upper …

Several recent studies have shown evidence for a widening of the tropical belt over the past
few decades. One line of evidence uses statistics of the tropopause height to distinguish …

Ozone trends in the upper troposphere and lower stratosphere (UTLS) remain highly
uncertain because of sharp spatial gradients and high variability caused by competing …

Historical radiosonde data are analyzed using the tropopause height frequency method to
investigate the variation of the Southern Hemisphere tropical edge from 1979/80–2010/11 …

Definition of the tropopause has remained a focus of atmospheric science since its discovery
near the beginning of the twentieth century. Few universal definitions (those that can be …

The tropopause region is crucial for the stratosphere‐troposphere exchange (STE) and acts
as an indicator of climate change. Double tropopauses (DTs) act to increase the STE …