Browsing by Autor "Gregori de Arruda Moreira"

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ALINE/LALINET Network Status
(EDP Sciences, 2016) Eduardo Landulfo; Fábio Lopes; Gregori de Arruda Moreira; Márcia Talita Amorim Marques; Marcelo Osneide; Juan Carlos Antuña; René Estevan; Juan Luís Guerrero-Rascado; Lucas Alados‐Arboledas; Álvaro Bastidas
The Latin American Lidar Network, ALINE a.k.a LALINET is a federation lidar network established in 2008 which became a member of GALION/GAW program in 2013. Currently the network consists of 9 operational stations with the perspective of two more stations to be included. The network today covers more than 18 million Km2 and spans in latitude from -52° to 21° and in longitude from -78° to -47°. It should cover a larger area in the future as planned with the inclusion of more active stations.
Lalinet status - station expansion and lidar ratio systematic measurements
(EDP Sciences, 2018) Eduardo Landulfo; Fábio Lopes; Gregori de Arruda Moreira; Jonatan da Silva; P. Ristori; Eduardo Quel; Lidia Otero; J. Pallota; Milagros Herrera; Jacobo Salvador
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.
Lidar Observations in South America. Part I - Mesosphere and Stratosphere
(IntechOpen, 2021) Eduardo Landulfo; Alexandre Cacheffo; Alexandre Calzavara Yoshida; Antonio Arleques Gomes; Fábio Lopes; Gregori de Arruda Moreira; Jonatan João da Silva; V. F. Andrioli; A. A. Pimenta; Chi Wang
South America covers a large area of the globe and plays a fundamental function in its climate change, geographical features, and natural resources. However, it still is a developing area, and natural resource management and energy production are far from a sustainable framework, impacting the air quality of the area and needs much improvement in monitoring. There are significant activities regarding laser remote sensing of the atmosphere at different levels for different purposes. Among these activities, we can mention the mesospheric probing of sodium measurements and stratospheric monitoring of ozone, and the study of wind and gravity waves. Some of these activities are long-lasting and count on the support from the Latin American Lidar Network (LALINET). We intend to pinpoint the most significant scientific achievements and show the potential of carrying out remote sensing activities in the continent and show its correlations with other earth science connections and synergies. In Part I of this chapter, we will present an overview and significant results of lidar observations in the mesosphere and stratosphere. Part II will be dedicated to tropospheric observations.
Lidar Observations in South America. Part II - Troposphere
(IntechOpen, 2021) Eduardo Landulfo; Alexandre Cacheffo; Alexandre Calzavara Yoshida; Antonio Arleques Gomes; Fábio Lopes; Gregori de Arruda Moreira; Jonatan João da Silva; V. F. Andrioli; A. A. Pimenta; Chi Wang
In Part II of this chapter, we intend to show the significant advances and results concerning aerosols’ tropospheric monitoring in South America. The tropospheric lidar monitoring is also supported by the Latin American Lidar Network (LALINET). It is concerned about aerosols originating from urban pollution, biomass burning, desert dust, sea spray, and other primary sources. Cloud studies and their impact on radiative transfer using tropospheric lidar measurements are also presented.