Simple method to derive aerosol microphysical properties from AERONET multiwavelength direct solar measurements

• Published in: Advances in Space Research
• Main Authors: Otero, L. A., Fochesatto, G. J., Ristori, P. R., Flamant, P. H., Piacentïni, R. D., Holben, B., Quel, E. J.
• Other Authors: Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2004
• Subjects: Derive aerosol microphysical properties; Aeronet multiwavelength solar measurements; Aerosol optical properties; Aerosol robotic network; [SDU]Sciences of the Universe [physics]; Aerosol Robotic Network
• Online Access: https://hal.science/hal-04110007; https://doi.org/10.1016/j.asr.2003.07.059

International audience We present a simple method to retrieve aerosol optical properties from direct solar measurements obtained using sun-photometer measurements from AERONET (Aerosol Robotic Network). This monitoring program is a federation of ground-based remote sensing aerosol network conducted by NASA. The goal of this network is to assess the aerosol optical properties and to validate their retrievals with satellite information. Data from this collaboration provide globally distributed observations of spectral aerosol optical thickness, precipitation water, and aerosol volume size distribution (derived from the inversion products) in geographically diverse aerosol regimes. In this work, we present a simple method to deduce the aerosol microphysical properties in the sub-micrometer radius range, which were derived from the aerosol optical thickness measurements using Mie kernel functions with a proposed synthetic radius spectrum. Results and comparison of this inversion procedure with other standard inversion products are shown for Buenos Aires (CEILAP) and Córdoba (CETT) sites of AERONET network.