137Cs size distribution measurements taken close to the power plant suggested that accumulation-mode (AM) sulfate aerosols were the main carriers of cesium. Cesium attached to particles in the ambient air, approximately according to their available aerosol surface area. During the Fukushima Dai-Ichi nuclear power plant accident of March 2011, the radioactive isotopes cesium-137 ( 137Cs) and xenon-133 ( 133Xe) were released in large quantities. In this study, we make use of an observational constraint on aerosol lifetimes provided by radionuclide measurements and investigate the causes of differences within a set of global models. This makes modelled aerosol lifetimes uncertain. Aerosols have important impacts on air quality and climate, but the processes affecting their removal from the atmosphere are not fully understood and are poorly constrained by observations. Kristiansen Hide author details Received: – Discussion started: – Revised: – Accepted: – Published: Ībstract. 16 Department of Atmospheric Science, Colorado StateĬorrespondence: N.15 Laboratory for Climate Studies, National Climate Center,Ĭhinese Meteorological Administration, Beijing, China.14 University of L'Aquila, L'Aquila, Italy.13 Department of Atmospheric Science, University of.L'Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France 12 Laboratoire des Sciences du Climat et de.11 Finnish Meteorological Institute, Kuopio,.University, and NASA Goddard Institute for Space Studies, New York, NY, 10 Center for Climate Systems Research, Columbia.9 Pacific Northwest National Laboratory (PNNL), Richland,.8 Earth and Ocean Sciences, Nicholas School of theĮnvironment, Duke University, Durham, NC, USA.Gutenberg University of Mainz, Mainz, Germany 6 Institute for Atmospheric Physics, Johannes.5 The Cyprus Institute, Nicosia, Cyprus.4 Center for International Climate and Environmental.3 Department of Physics and Atmospheric Science, Dalhousie.2 Norwegian Meteorological Institute, Oslo,.1 NILU – Norwegian Institute for Air Research, Kjeller,.Evaluation of observed and modelled aerosol lifetimes using radioactive tracers of opportunity and an ensemble of 19 global models N.

Show tracers cs go