时间：2019年6月4日 (周二) 13:30-15:30
主题：The changing flow of energy through the Earth’s Climate System
主讲人：Dr. Kevin E. Trenberth
Radiant energy from the sun is unevenly absorbed in the Earth system because of the sun-Earth geometry. The energy is transformed into internal energy (temperature-related sensible heat), latent energy (associated with phase changes of water), potential energy (associated with height and gravity), and kinetic energy (associated with motion). The energy may be stored in atmospheric, ocean, cryosphere and land heat reservoirs and moved around mainly by the atmosphere and ocean, which give rise to our weather and climate. Ultimately it is radiated back to space as infrared radiation, and for a stable climate the global mean outgoing and incoming radiation must balance. This provides new commentaries on the variability in the Atlantic Meridional Overturning Circulation (AMOC) and El Ni?o-Southern Oscillation (ENSO).
Dr. Kevin E. Trenberth is a distinguished senior scientist in the Climate Analysis Section at the National Center for Atmospheric Research. He obtained his doctorate from Massachusetts Institute of Technology. He has been prominent in most of the Intergovernmental Panel on Climate Change (IPCC) scientific assessments of Climate Change and has also extensively served the World Climate Research Programme (WCRP) in numerous ways, most recently as chair of the WCRP Global Energy and Water Exchanges (GEWEX) project. He is a fellow of the American Meteorological Society, the American Association for Advancement of Science, the American Geophysical Union, and an honorary fellow of the Royal Society of New Zealand. He has published over 560 articles or books and is one of the most cited scientists in his field. He has given many invited scientific talks as well as appearing in a number of television, radio programs and newspaper articles.