Infinite Horizons: January 15th "How Have Space Observations Increased Knowledge on the Chemical Composition of the Earth’s Atmosphere?"
Speaker: Prof. Guy P. Brasseur (Max Planck Institute for Meteorology, Germany)
January. 15th, 2025
4pm, Beijing time
Watch it on Zoom
We have the pleasure to host the next Infinite Horizons' seminar on January 15th, 2025. Our host will be Prof. Guy P. Brasseur from the Max Planck Institute for Meteorology. Prof. Brasseur will talk about How Have Space Observations Increased Knowledge on the Chemical Composition of the Earth’s Atmosphere?.
Seminar's abstract:
For more than 60 years, the scientific community has used advanced space-borne instrumentation to observe reactive gases, greenhouse gases and aerosols in the Earth's atmosphere. These measurements which have been using different spectral signatures in the ultraviolet, the infrared or the microwave regions, and based on different experimental techniques, have provided important information about some fundamental processes affecting atmospheric chemistry and aerosol physics. Interactions between chemical and meteorological processes at scales ranging from global to local have been successfully studied. Information about disturbances and trends in the trace gas abundance has demonstrated the importance of human-driven perturbations in the atmosphere with impacts on human health and on climate. The presentation will show some specific examples of space-related studies that have advanced our knowledge and highlight some specific challenges to make further progress.
Zoom ID: 835 0041 7991
Livestream Link: http://live.bilibili.com/22671469
(Our Infinite Horizons seminars are usually host on the third Wednesday of the month)
About the speaker:
Guy P. Brasseur was educated at the Free University of Brussels, Belgium where he earned two engineering degrees: one in physics (1971) and one in telecommunications and electronics (1974). He obtained his PhD degree at the same University.
Brasseur worked several years at the Belgian Institute for Space Aeronomy, where he developed advanced models of photochemistry and transport in the middle atmosphere. In 1988, he moved to the National Center for Atmospheric Research (NCAR) where he became Director of the Atmospheric Chemistry Division in 1990 (120 staff). During his tenure at NCAR, he served between 1992 and 1996 as Editor in Chief of the Journal of Geophysical Research (Atmospheres), and during the period 1994-2001, became Chair of the International Atmospheric Chemistry Project (IGAC) of the International Geosphere-Biosphere Program (IGBP). On 1 January 2000, Brasseur became Director at the Max Planck Institute for Meteorology and Honorary Professor at the Universities of Hamburg and Brussels. Between January 2002 and December 2005, Brasseur was the Chair of the Scientific Committee of the ICSU International Geosphere Biosphere Programme (IGBP). He was a Coordinating Lead Author for the fourth Assessment Report (WG-1) of the International Panel for Climate Change (IPCC). Jointly with Al Gore, the IPCC was awarded the 2007 Nobel Peace Prize. Between January 2006 and July 2009, Brasseur was an Associate Director of the National Center for Atmospheric Research (NCAR) and Head of the Earth and Sun Systems Laboratory (ESSL, 300 staff). In July 2009, he became the founding Director of the Climate Service Center (CSC) in Hamburg, Germany and an External Member of the Max Planck Institute for Meteorology. He was the Chair of the Joint Science Committee of the World Climate research Programme (WCRP). He is now a Distinguished Scholar at NSF-NCAR and the Head of the Environmental Modeling Group at the Max Planck Institute for Meteorology. Brasseur is member of several Academies (Hamburg, Belgium, Norway) and the Academia Europea.
Brasseur's primary scientific interests are related to Global Change, climate variability, chemistry-climate relations, biosphere-atmosphere interactions, climate change, stratospheric ozone depletion, global air pollution including tropospheric ozone, solar-terrestrial relations. He has become increasingly interested in issues related to climate communication and knowledge dissemination.
