Project Coordinator: Prof. Dr. Markus Rapp

German Aerospace Center (DLR)
Institute of Atmospheric Physics

WASCLIM website: http://www.pa.op.dlr.de/wasclim/#

The project WASCLIM investigates the impact of GWs on the SH stratospheric circulation and tropospheric climate by means of field observations, high-resolution numerical modelling, the analysis of meteorological reanalyses, and climate modelling. The development and implementation of a simple parametrization for the horizontal propagation of GWs, and, eventually, climate sensitivity simulations will quantify the resulting effects on tropospheric climate and climate change. In the project, long-term ground-based measurements with autonomous temperature-lidar CORAL (Compact Rayleigh Autonomous Lidar) at the southern tip of South America are continued. They are complemented by episodic airborne measurements, amongst others, with the new ALIMA (Airborne Lidar for Studying the Middle Atmosphere) instrument and the infrared limb imager GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) onboard the German research aircraft HALO (High Altitude and Long Range Research Aircraft) and ground-based meteor radar observations.

The region of the Andes and the Antarctic Peninsula is a hotspot of stratospheric GW activity. A data set for different GW sources will be assembled and high-resolution ICON (= global forecast model of the German Weather Service) simulations will complement observational data in a consistent way.