Navegando por Autor "Alados-Arboledas, Lucas"
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Artigo Detection of saharan mineral dust aerosol transport over brazilian northeast through a depolarization lidar(EDP Sciences, 2018) Guede, Anderson G.; Landulfo, Eduardo; Montilla-Rosero, Elena; Lopes, Fábio Juliano da Silva; Hoelzemann, Judith Johanna; Fernandez, José Henrique; Silva, Marcos P. A.; Santos, Renata Sammara da Silva; Guerrero-Rascado, Juan L.; Alados-Arboledas, LucasIn this study we present results of linear volume depolarization ratio profiles obtained by a depolarization lidar in operation in Natal, Brazil. The DUSTER system has 4 channels, namely: 1064, 532 s/p and 355 nm. This system is calibrated with a half-wave plate using the Δ90° methodology. The data obtained from this system is correlated with AERONET sunphotometer data, and, when available, CALIPSO satellite data. In addition a trajectory model (HYSPLIT) is used to calculate backward trajectories to assess the origin of the dust polluted air parcels. The objective is to create a transport database of Saharan dustArtigo Lalinet status - station expansion and lidar ratio systematic measurements(EDP Sciences, 2018) Landulfo, Eduardo; Lopes, Fabio; Moreira, Gregori Arruda; Silva, Jonatan da; Ristori, Pablo; Quel, Eduardo; Otero, Lidia; Pallota, Juan Vicente; Herrera, Milagros; Salvador, Jacobo; Bali, Juan Lucas; Wolfram, Eliam; Etala, Paula; Barbero, Albane; Forno, Ricardo; Sanchez, Maria Fernanda; Barbosa, Henrique; Gouveia, Diego; Santos, Amanda Vieira; Hoelzemann, Judith Johanna Hoelzemann; Fernandez, José Henrique; Guedes, Anderson; Silva, Antonieta; Barja, Boris; Zamorano, Felix; Legue, Raul Perez; Bastidas, Alvaro; Zabala, Maribel Vellejo; Velez, Juan; Nisperuza, Daniel; Montilla, Elena; Arredondo, Rene Estevam; Marrero, Juan Carlos Antuña; Vega, Alberth Rodriguez; Alados-Arboledas, Lucas; Guerrero-Rascado, Juan Luis; Sugimoto, Nobuo; Yoshitaka, JinLALINET is expanding regionally to guarantee spatial coverage over South and Central Americas. One of the network goals is to obtain a set of regional representative aerosol optical properties such as particle backscatter, extinction and lidar ratio. Given the North-South extension and influence of distinct airmass circulation patterns it is paramount to distinguish these optical parameters in order to gain better perfomance in radiation transfer models. A set of lidar ratio data is presented