A numerical simulation of the chemistry of a rainband |
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| Institution: | 1. Aryabhatta Research Institute of Observational Sciences, Nainital 263 002, Uttarakhand, India;2. Department of Physics and Astrophysics, University of Delhi, India;1. Department of Environmental Science and Engineering, Nanjing Normal University, Nanjing 210023, PR China;2. Australian Centre for Research on Separation Sciences (ACROSS), School of Physical Sciences, University of Tasmania, Private Bag 75, Hobart 7001, Tasmania, Australia;3. Central Science laboratory, University of Tasmania, Private Bag 74, Hobart 7001, Tasmania, Australia;1. Unidad de Neurocríticos. Hospital Universitario Virgen del Rocío, Sevilla, España;2. Instituto de Biomedicina (IBiS)/CSIC Universidad de Sevilla, Sevilla, España;3. Unidad de Cuidados Intensivos, Hospital Clínico Universitario de Valencia, Valencia, España;4. Unidad de Cuidados Intensivos, Hospital Universitario de La Paz, Madrid, España;1. Post Graduate & Research Department of Physics, Bishop Moore College, Mavelikara, Kerala 690 110, India;2. Post Graduate & Research Department of Physics, Pachaiyappa’s College, Chennai 600 030, India |
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| Abstract: | Comparisons between the observations of a rainband and the results of a numerical simulation with a two-dimensional dynamical chemical model are presented. The simulation produced sulphate concentrations in the precipitation that agreed reasonably well with the observations, which suggests that the treatment of the major pathways for sulphate in the rain is satisfactory. Oxidation within the cloud was found to be a relatively unimportant pathway for this particular precipitation system, the two most important sources of sulphate in the rain being nucleation of sulphate aerosol and washout. |
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