^^Abstract^^

Remote sensing of the Earth’s atmosphere is essential for understanding climate change, the chemistry and dynamics of trace gases from the troposphere to the thermosphere and the tropospheric water and carbon cycles. New technology is needed to provide the right information at the most appropriate scales. This talk will present recent work at the Karlsruhe Institute of Technology in this area. We will discuss the development of two-dimensional infrared limb-emission sounding from high-altitude aircraft, the use of in-service aircraft to make global measurements of trace gases in the atmosphere, the deployment of small mobile spectrometers for making very precise measurements of atmospheric carbon dioxide and methane columns from the ground as well as related satellite projects.

^^Bio^^
Johannes Orphal is Full Professor of Physics and Director of the Institute of Meteorology and Climate Research at the Karlsruhe Institute of Technology in Germany. His research focuses on optical remote sensing, atmospheric physics and chemistry and processes that are relevant to air quality and our climate. Prior to moving to Karlsruhe, he was Professor at the University of Paris-Est and a research scientist at the French National Centre for Scientific Research (CNRS). He holds a Ph.D. in lasers and materials from the University of Paris-Sud in France.