Dirk Offermann

TL;DR: In this article, a review of long-term trends in the temperature of the region from 50 to 100 km is made on the basis of the available datasets and model calculations, and important uncertainly factors are discussed.

TL;DR: In this paper, a Chemical Lagranigan Model of the Stratosphere (CLaMS) based on a Lagrangian transport of tracers has been proposed, where the mixing of different air masses is driven by large-scale horizontal flow deformation and takes into account the mass exchange between the nearest neighbors determined by Delaunay triangulation.

TL;DR: The Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) instrument was built to determine whether and to what extent small-scale structures in global trace gas distributions and in dynamics are present in the middle atmosphere as discussed by the authors.

TL;DR: The Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiment aboard the Shuttle Pallet Satellite (SPAS) was successfully flown in early November 1994 (STS 66) and in August 1997 (StS 85).

TL;DR: For the first time near-global retrievals of mesopause OH rotational temperatures from satellite-borne Meinel band emission measurements are presented in this paper, where the measurements of the OH (3-1) Meinel bands near 1.5 micron were performed with the SCIAMACHY instrument on the European Space Agency's environmental satellite Envisat.