Kaspar Graf

TL;DR: In this article, the authors performed in-situ measurements of volcanic ash plumes over Europe between Southern Germany and Iceland with the Falcon aircraft during the eruption period of the Eyjafjalla volcano between 19 April and 18 May 2010.

TL;DR: The Midlatitude Cirrus experiment (ML-CIRRUS) deployed the High Altitude and Long Range Research Aircraft (HALO) to obtain new insights into nucleation, life cycle, and climate impact of natural cirrus and aircraft-induced contrail cirrus as discussed by the authors.

TL;DR: In this paper, the authors discuss the impact of changes of the flight level, typically 2000 ft (610 m) up or down, on the climate impact of a single flight.

TL;DR: In this article, the authors derived the radiative forcing from aviation-induced cirrus from observations and models, assuming the background atmosphere without aviation to be similar to that observed in the South Atlantic.

TL;DR: In this paper, a plume-scale contrail model with a global aerosol-climate model was used to investigate the dewatering of the atmosphere at flight levels and redistribute humidity mainly to lower levels.