Guus J.M. Velders

National Institute for Public Health and the Environment, The Netherlands


Guus J.M. Velders received an M.S. degree in applied physics in 1987 and a Ph.D. degree in quantum chemistry in 1992 at the University of Twente, The Netherlands. From 1992 to 1993, he worked at the Royal Netherlands Meteorological Institute studying the effects of aircraft emissions on the composition of the atmosphere. From 1993 to 2005, he worked at the National Institute of Public Health and the Environment (RIVM) and from 2005 to 2010 at the Netherlands Environmental Assessment Agency. In 1999/2000, he worked as a Visiting Scientist at the Aeronomy Laboratory of NOAA (Boulder, CO) studying tropospheric nitrogen dioxide concentrations from satellite instruments. From 2011 to present, he again works at RIVM as a Senior Scientist on ozone layer depletion, climate change, and air quality. He is involved in both scientific research and in assessments on the national (Dutch Government), European (European Environment Agency, EEA), and global scale (IPCC, UNEP/WMO). His fields of expertise include chemistry and transport in the atmosphere, ozone layer depletion from production of CFCs to effects on humans, UV radiation, climate change, global and regional atmospheric modeling, air quality modeling, data assimilation, and inverse modeling. He was a Coordinating Lead Author of the WMO/UNEP Scientific Assessment of Ozone Depletion: 1998, 2006, and 2010 and Coordinating Lead Author of 2005 IPCC special report on ozone layer depletion and climate change. He is author and coauthor of various scientific publications. He was corecipient of the US EPA 2008 Stratospheric Ozone Protection Award and of the US EPA 2008 Scientific and Technological Achievement Award.

Biography Updated on 31 July 2011

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