Examinando por Autor "Landulfo E."

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    Detection of saharan mineral dust aerosol transport over brazilian northeast through a depolarization lidar
    (EDP Sciences, 2018-01-01) Guedes A.G.; Landulfo E.; Montilla-Rosero E.; Lopes F.J.S.; Hoelzemann J.J.; Fernandez J.H.; Silva M.P.A.; Santos R.S.S.; Guerrero-Rascado J.L.; Alados-Arboledas L.; Universidad EAFIT. Departamento de Ciencias Básicas; Óptica Aplicada
    In 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 90° 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 dust. © The Authors, published by EDP Sciences, 2018.
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    Lalinet status - Station expansion and lidar ratio systematic measurements
    (EDP Sciences, 2018-01-01) Landulfo E.; Lopes F.; Moreira G.A.; Da Silva J.; Ristori P.; Quel E.; Otero L.; Pallota J.V.; Herrera M.; Salvador J.; Bali J.L.; Wolfram E.; Etala P.; Barbero A.; Forno R.; Sanchez M.F.; Barbosa H.; Gouveia D.; Santos A.V.; Hoelzemann J.; Fernandez J.H.; Guedes A.; Silva A.; Barja B.; Zamorano F.; Legue R.P.; Bastidas A.; Zabala M.V.; Velez J.; Nisperuza D.; Montilla E.; Arredondo R.E.; Marrero J.C.A.; Vega A.R.; Alados-Arboledas L.; Guerrero-Rascado J.L.; Sugimoto N.; Yoshitaka J.; Universidad EAFIT. Departamento de Ciencias Básicas; Óptica Aplicada
    LALINET 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. © The Authors, published by EDP Sciences, 2018.