Numerical methods for retrieving aerosol size distributions from optical measurements of solar radiation |
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Authors: | M F Carfora F Esposito C Serio |
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Affiliation: | a1Istituto per Applicazioni della Matematica CNR, Via Pietro Castellino, 111, 80131 Napoli, Italy;a2Dipartimento Ingegneria e Fisica dell’Ambiente, Università della Basilicata, Potenza, Italy |
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Abstract: | Retrieving aerosol size distributions from ground measurements is an ill-posed problem. Several methods have been developed to “regularize” it, giving a stable approximation of its solution. The aim of this paper is to review the techniques usually adopted and present some new approaches. The case of solutions retrieved both in their parametric and non-parametric form is considered. For all the considered methods the problem of choosing an optimal level of regularization is also discussed. Finally, numerical results comparing some inversion techniques in a real case are presented. |
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