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Agora exibindo 1 - 4 de 4
  • Imagem de Miniatura
    Artigo IPEN-doc 27253
    LALINET network status
    2020 - LANDULFO, EDUARDO; VEGA, ALBEHT R.; YOSHIDA, ALEXANDRE C.; BASTIDAS, ALVARO; SANTOS, AMANDA V. dos; SILVA, ANTONIETA; GOMES, ANTONIO A.; GONZALEZ, BORIS B.; MELO-LUNA, CARLOS A.; HOYOS, CARLOS D.; RAE, CRISTINA T. de S.; CAMILO, DANIEL; VIVAS, DAVID; GOUVEIA, DIEGO A.; WOLFRAM, ELIAN; COLLINI, ESTELA; LOPES, FABIO J.S.; MOREIRA, GREGORI de A.; BARBOSA, HENRIQUE de M.J.; CIMINARI, HERNAN; REINA, JOHN H.; SILVA, JONATAN J. da; CESPEDES, JONNATHAN; MARRERO, JUAN C.A.; RASCADO, JUAN L.G.; PALLOTTA, JUAN; HOELZEMANN, JUDITH; ARBOLEDAS, LUCAS A.; SALLES, M.ALEJANDRA; SILVA, MARCOS P.A. da; SAMMARA, RENATA; FORNO, RICARDO N.; PAPANDREA, SEBASTIAN
    LALINET (Latin American Lidar Network) follows its goal to consolidation as a federative lidar network to provide regional coverage over Latin America in providing aerosol and greenhouse gas profiles following QA/QC protocols and promoting the development of researchers and students in atmopheric science field. We show recent results on different approaches for studying the optical properties of the atmosphere regarding aerosols at tropospheric and stratospheric level and greenhouse gas mixing ratio profiles followed by our recent support and validation efforts towards present and future satellite missions.
  • Imagem de Miniatura
    Artigo IPEN-doc 27251
    Exploring the twilight zone
    2020 - SILVA, JONATAN da; MORAIS, FERNANDO G.; FRANCO, MARCO A.; LOPES, FABIO J.S.; ARRUDA, GREGORI de A.; YOSHIDA, ALEXANDRE C.; CORREIA, ALEXANDRE; LANDULFO, EDUARDO
    This study shows a set of analysis of measurements from ground-based and satellite instruments to characterize the twilight zone (TLZ) between clouds and aerosols in São Paulo, Brazil. In the vicinity of clouds turbulence measurements showed an intense upward movement of aerosol layers, while sunphotometer results showed an increase in aerosol optical depth, and lidar measurements showed an increase in the backscatter vertical profile signal.
  • Imagem de Miniatura
    Artigo IPEN-doc 24750
    Rehearsal for assessment of atmospheric optical properties during biomass burning events and long-range transportation episodes at metropolitan area of São Paulo-Brazil (RAPEL)
    2018 - LOPES, FABIO J.S.; GUERRERO-RASCADO, JUAN L.; BENAVENT-OLTRA, JOSE A.; ROMAN, ROBERTO; MOREIRA, GREGORI A.; MARQUES, MARCIA T.A.; SILVA, JONATAN J. da; ALADOS-ARBOLEDAS, LUCAS; ARTAXO, PAULO; LANDULFO, EDUARDO
    During the period of August-September 2016 an intensive campaign was carried out to assess aerosol properties in São Paulo-Brazil aiming to detect long-range aerosol transport events and to characterize the instrument regarding data quality. Aerosol optical properties retrieved by the GALION - LALINET SPU lidar station and collocated AERONET sunphotometer system are presented as extinction/ backscatter vertical profiles with microphysical products retrieved with GRASP inversion algorithm.
  • Imagem de Miniatura
    Artigo IPEN-doc 24744
    Lalinet status - station expansion and lidar ratio systematic measurements
    2018 - LANDULFO, EDUARDO; LOPES, FABIO; MOREIRA, GREGORI A.; SILVA, JONATAN da; RISTORI, PABLO; QUEL, EDUARDO; OTERO, LIDIA; PALLOTA, JUAN V.; HERRERA, MILAGROS; SALVADOR, JACOBO; BALI, JUAN L.; WOLFRAM, ELIAM; ETALA, PAULA; BARBERO, ALBANE; FORNO, RICARDO; SANCHEZ, MARIA F.; BARBOSA, HENRIQUE; GOUVEIA, DIEGO; SANTOS, AMANDA V.; HOELZEMANN, JUDITH; FERNANDEZ, JOSE H.; GUEDES, ANDERSON; SILVA, ANTONIETA; BARJA, BORIS; ZAMORANO, FELIX; LEGUE, RAUL P.; BASTIDAS, ALVARO; ZABALA, MARIBEL V.; VELEZ, JUAN; NISPERUZA, DANIEL; MONTILLA, ELENA; ARREDONDO, RENE E.; MARRERO, JUAN C.A.; VEGA, ALBERTH R.; ALADOS-ARBOLEDAS, LUCAS; GUERRERO-RASCADO, JUAN L.; SUGIMOTO, NOBUO; YOSHITAKA, JIN
    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.