Cyprus Institute
Who did Johannes Lelieveld work for from 2008 to 2009?
Johannes Lelieveld Johannes Jos Lelieveld ( born July 25 , 1955 ) is a Dutch atmospheric chemist . Since 2000 , he has been a Scientific Member of the Max Planck Society and director of the Atmospheric Chemistry Department at the Max Planck Institute for Chemistry in Mainz . He is also professor at the University of Mainz and at the Cyprus Institute in Nicosia . Biography . Lelieveld studied biology at the Leiden University , the Netherlands . He graduated at the University of Leiden from the faculty of Mathematics and Natural Sciences , and the Free University of Amsterdam , in 1984 and received his Ph.D . from the faculty of Physics and Astronomy at the Utrecht University in 1990 . His doctoral supervisor was Nobel laureate Paul J . Crutzen and his thesis was entitled The role of clouds in tropospheric chemistry . From 1984 until 1987 he worked as a research assistant at Geosens B.V . in Rotterdam to investigate transboundary air pollution . Subsequently , he became research scientist at the Atmospheric Chemistry Department of the Max Planck Institute for Chemistry ( MPIC ) in Mainz from 1987–1993 . In 1991 , he was visiting scientist at the International Meteorological Institute at the University of Stockholm , followed by a stay at the Scripps Institution of Oceanography , University of California , San Diego in 1992 . In 1993 Lelieveld returned to the Netherlands , accepting a professorship in “Air Quality” at Wageningen University . From 1996 to 2000 he was professor in “Atmospheric Physics and Chemistry” at University of Utrecht . In 1997 he became founding director of the international research school COACh ( Cooperation on Oceanic , Atmospheric and climate Change studies ) . In 2000 , Jos Lelieveld returned to the Max Planck Institute for Chemistry in Mainz as scientific member of the Max Planck Society and director , succeeding Paul J . Crutzen as director of the Atmospheric Chemistry Department . Since 2000 he is spokesperson of the Paul Crutzen Graduate School ( PCGS ) on Atmospheric Chemistry and Physics in Mainz and since 2008 he is co-affiliated at the Cyprus Institute in Nicosia . He is co/author of over 400 publications , co-editor of several scientific journals , as well as member of various international committees . In 2015 he was elected as member of the German National Academy of Sciences Leopoldina. , in 2016 he received an honorary doctorate and professorship from the University of Crete , and was elected as member of the International Silk Road Academy of Sciences , China . In 2017 he was appointed Fellow of the Royal Society of Chemistry , and in 2018 Fellow of the American Geophysical Union . Vilhelm Bjerknes Medal of the European Geosciences Union ( 2019 ) Research . Jos Lelievelds department focuses on photo-oxidation mechanisms , which play a central role in the self-cleaning capacity of the atmosphere . With the help of self-developed highly sensitive instrumentation to measure trace gases , including reactive radicals that occur in minute amounts in ambient air , to uncover the photochemical reaction chains . He and his group have specialized in the construction of new instrumentation for application on aircraft . Fast laser-optical , mass spectrometric and relatively fast gas chromatographic techniques , for example , are used to determine the key oxidants and breakdown products of hydrocarbons . The studies include laboratory investigations , field measurements on aircraft and ships , and the use of satellite observations . Also developing computer models to simulate the interactions of chemical and meteorological processes , and investigating the impact of atmospheric composition changes on climate and planetary health in the Anthropocene . Jos Lelieveld coordinated major field measurement campaigns on atmospheric chemistry and climate ‘hot spot’ regions like the Indian Ocean , the Mediterranean , the Amazon and the Middle East . He found that the atmospheres natural self-cleaning mechanism is effectively stabilized through the rapid recycling of highly reactive radicals , buffering the changes caused by natural and anthropogenic emissions . To study the interplay between atmospheric composition and climate , Lelieveld introduced the dynamic coupling of atmospheric chemistry in general circulation models . He showed that the increase of methane not only directly causes climate warming , but also indirectly through chemical reactions in the troposphere and stratosphere . His research uncovered how clouds and aerosols influence the chemistry of the troposphere , and showed that cloud convection has a major impact on tropospheric ozone . Lelieveld quantified the global impact of air pollution emission sectors on human health , identifying agriculture and residential energy use as important anthropogenic sources of particulate matter , next to the use of fossil fuels . Further , he showed the co-benefits of air pollution control on improving human health , reversing anthropogenically perturbed rainfall patterns and limiting global warming . His work on the Middle East and North Africa showed that the region is a global hotspot of climate change , weather extremes and air pollution , which could ultimately compromise human habitability Jos Lelieveld has an h-index of 95 ( May 2020 ) External links . - Homepage of Jos Lelieveld at the MPI for Chemistry - Profile of Jos Lelieveld , Max-Planck-Gesellschaft Videos . - Video : What are the Sources and Health Effects of Air Pollution ?