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Cloud optical properties in the Amazon derived from LIDAR and Radiometer measurements

Grant number: 12/16100-1
Support type:Research Grants - Visiting Researcher Grant - International
Duration: October 30, 2012 - April 29, 2013
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Meteorology
Principal Investigator:Henrique de Melo Jorge Barbosa
Grantee:Henrique de Melo Jorge Barbosa
Visiting researcher: Boris Barja Gonzalez
Visiting researcher institution: Instituto de Meteorología de la República de Cuba (INSMET), Cuba
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:08/58100-2 - Aeroclima: direct and indirect effects of aerosols on climate in Amazonia and Pantanal, AP.PFPMCG.TEM


This research proposal focuses on the determination of cloud optical properties in the Amazon region from different ground and satellite based instruments. Understanding the behavior of the optical characteristics of clouds will allow us to evaluate their interaction with solar radiation. Hence a secondary objective of this proposal will be the preliminary evaluation of the cloud radiative effects. Cloud optical depths (COD) will be evaluated from the LIDAR and MFRSR instruments, both installed in an experimental site near Manaus, and results will be compared with those obtained from satellite instruments. An initial evaluation of the cloud radiative forcing on the solar radiation will also be obtained by two different methods: modeling and direct solar radiation measurements. These activities will contribute directly to the FAPESP Thematic project "AEROCLIMA - Direct and indirect effects of aerosols on climate in Amazonia and Pantanal". This research on optical and radiative properties of clouds should allow, in the future, improving the representation of clouds in the atmospheric models, what is direct related to FAPESP Thematic project "CHUVA - Cloud processes of the main precipitation systems in Brazil: A contribution to cloud resolving modeling and to the GPM (GlobAl Precipitation Measurement)". PhD. Boris Barja González is a researcher in the Atmospheric Optics Group of Camagüey, Meteorological Institute, Cuba. He has long experience in these proposed topics. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ROSARIO, NILTON E.; SAUINI, THAMARA; PAULIQUEVIS, THEOTONIO; BARBOSA, HENRIQUE M. J.; YAMASOE, MARCIA A.; BARJA, BORIS. Aerosol optical depth retrievals in central Amazonia from a multi-filter rotating shadow-band radiometer calibrated on-site. Atmospheric Measurement Techniques, v. 12, n. 2, p. 921-934, FEB 11 2019. Web of Science Citations: 0.
GOUVEIA, DIEGO A.; BARJA, BORIS; BARBOSA, HENRIQUE M. J.; SEIFERT, PATRIC; BAARS, HOLGER; PAULIQUEVIS, THEOTONIO; ARTAXO, PAULO. Optical and geometrical properties of cirrus clouds in Amazonia derived from 1 year of ground-based lidar measurements. Atmospheric Chemistry and Physics, v. 17, n. 5, p. 3619-3636, MAR 15 2017. Web of Science Citations: 6.
BARBOSA, H. M. J.; BARJA, B.; PAULIQUEVIS, T.; GOUVEIA, D. A.; ARTAXO, P.; CIRINO, G. G.; SANTOS, R. M. N.; OLIVEIRA, A. B. A permanent Raman lidar station in the Amazon: description, characterization, and first results. Atmospheric Measurement Techniques, v. 7, n. 6, p. 1745-1762, 2014. Web of Science Citations: 10.

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