New guest researcher with focus on aerosols & water
Simon will be working mainly with researchers Birgitta Svenningsson, Erik Swietlicki, and Pontus Roldin, beginning with models of experimental measurements of the growth of small particles in response to changes in relative humidity. This work will yield insights into processes leading to cloud formation in the atmosphere.
Models of the equilibrium behaviour of atmospheric aerosols and natural waters
Simon has worked in the field of environmental chemistry, first in chemical oceanography and then in atmospheric chemistry, for 30 years. He is Vice-Chair of the SCOR International Working Group Modelling Chemical Speciation in Seawater to Meet 21st Century Needs. Simon has long experience in the formulation and application of thermodynamic models of gas/liquid/solid equilibria. His work was first applied to understand the formation of the polar stratospheric clouds on which ozone depletion occurs, and continues today in the Extended Aerosol Inorganics Model (E-AIM). This online resource is used for the analysis and interpretation of laboratory experiments by atmospheric scientists worldwide, and as a reference or benchmark for a number of current air quality and process models. Simon's current focus is on an international project to link aerosol physical chemistry and its atmospheric effects via "kappa-Köhler" theory, and various proposals in the U.S.A., and the U.K. and other EU countries, centered on the metrology of pH and the oceanic carbonate system.
Contact and more information
Simon's atmospheric chemistry models can be found on the E-AIM website noted above, and his list of publications here.
Contact Simon by email (s [dot] clegg [at] uea [dot] ac [dot] uk) or come by CEC (Ecology Building, Sölvegatan 37, 3rd floor) where Simon has his office. He will be giving talk(s), the times and dates of which will be announced during his stay.
Simon is working at CEC until the end of November.