MARCIA TALITA AMORIM MARQUES

MARCIA TALITA AMORIM MARQUES

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Correlation study between air quality data and the Lidar system in Cubatao, Sao Paulo
2017 - ARAUJO, ELAINE C.; ANDRADE, IZABEL da S.; MACEDO, FERNANDA de M.; CORREA, THAIS; SALANI, MARIA H.G. de A.; COSTA, RENATA F. da; RAMOS, SERGIANA dos P.; MARQUES, MARCIA T.A.; LOPES, DANIEL S.; GUARDANI, MARIA L.G.; LANDULFO, EDUARDO; GUARDANI, ROBERTO
We present here the results of two methods with a scanning multiwavelength elastic lidar system and Beta Ray method (CETESB) realized in an industrial area. The objective is a comparer of these two methods to identify fixed sources of aerosol and to monitor plume dispersion. The results of the two aligned techniques indicate that can provide information on the concentration, spatial and temporal distribution of aerosol.
Estimating the planetary boundary layer height from radiosonde and doppler lidar measurements in the city of São Paulo - Brazil
2018 - MARQUES, MARCIA T.A.; MOREIRA, GREGORI de A.; PINERO, MACIEL; OLIVEIRA, AMAURI P.; LANDULFO, EDUARDO
This study aims to compare the planetary boundary layer height (PBLH) values estimated by radiosonde data through the bulk Richardson number (BRN) method and by Doppler lidar measurements through the Carrier to Noise Ratio (CNR) method, which corresponds to the maximum of the variance of CNR profile. The measurement campaign was carried during the summer of 2015/2016 in the city of São Paulo. Despite the conceptual difference between these methods, the results show great agreement between them.
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.
Monitoring the industrial sources of aerosol in Cubatao, Brazil, using a scanning elastic lidar and a lidar doppler
2018 - COSTA, RENATA F. da; MARQUES, MARCIA T.A.; MACEDO, FERNANDA de M.; ANDRADE, IZABEL da S.; ARAUJO, ELAINE C.; CORREA, THAIS; SALANI, MARIA H.G. de A.; LOPES, DANIEL S.; GUARDANI, MARIA L.G.; LANDULFO, EDUARDO; GUARDANI, ROBERTO
Field campaigns with a scanning multiwavelength elastic lidar coupled with a Doppler system to monitor industrial atmospheric aerosol emissions were carried out, with the objective of monitoring aerosol emission sources and plume dispersion. Since the technique provides information on the spatial and temporal distribution of aerosol concentration, the implementation of a systematic monitoring procedure is proposed as a valuable tool in air quality monitoring applied to regions of interest.
Obtenção da altura da camada limite planetária através da análise espectral do campo de vento do lidar Doppler
2017 - MARQUES, MÁRCIA T.A.
Este estudo explora a obtenção da altura da camada limite planetária a partir de diferentes métodos e equipamentos, com foco na análise espectral do campo de vento do lidar Doppler. Realizou-se uma campanha de medição por 80 dias com dois lidars Dopplers comerciais com diferentes alcances verticais. Para o lidar com maior alcance vertical e consequetemente uma medida direta da altura da camada limite planetária, foi aplicado o método da variância da razão sinal-ruído e os resultados foram comparados aos valores de altura estimados a partir de dados de radiossondagem através de dois métodos distintos, o método da parcela e o método do número de Richardson bulk, o qual apresentou melhores resultados. Para o lidar com menor alcance vertical, aplicou-se a análise espectral que forneceu valores de comprimento de onda dos picos espectrais, proporcionais à altura da camada limite planetária. A constante de proporcionalidade para obtenção dos valores da altura da camada foi calculada comparando-se os resultados aos valores de altura estimados pela radiossondagem através do método do número de Richardson bulk, obtendo-se um valor de constante de proporcionalidade próximo ao sugerido na literatura. Entretanto, o conjunto de dados que mostrou boas estimativas dos picos espectrais foi bastante restrito, limitando a comparação ao longo do período entre os lidars.
Monitoring the environmental impact of aerosol loading and dispersion from distinct industrial sources in Cubatao, Brazil, using a scanning lidar
2016 - COSTA, RENATA F. da; MARQUES, MARCIA T.A.; LOPES, DANIEL S.; GUARDANI, MARIA L.G.; MACEDO, FERNANDA de M.; LANDULFO, EDUARDO; GUARDANI, ROBERTO
This paper reports the results of campaigns carried out with a scanning lidar system in an industrial area for monitoring the spatial distribution of atmospheric aerosol. The aim of the study was to verify the possibility of applying a lidar system to identify fixed sources of aerosol emission, as well as to monitor the dispersion of the emitted plume, and the ability of the system to evaluate pertinent properties of the suspended particles, such as particle number concentration and representative particle size. The data collection was carried out with a scanning backscatter lidar system in the biaxial mode with a three-wavelength light source, based on a commercial Nd:YAG laser, operating at 355 nm, 532 nm, and 1064 nm. The campaigns were carried out in an industrial site close to the city of Cubatao, Brazil, 23º 53’ S and 46º 25’ W, one of the largest industrial sites of the Country, comprising a steel plant, two fertilizer complexes, a cement plant and a petrochemical complex. Backscattered light intensity plots were made from the primary data collected via 360-degree scans at 15 degree elevation. The collected data correspond to distances ranging from 200 m to 1500 m from the measurement location. The results indicate that the technique can provide valuable information on the spatial and temporal distribution of aerosol concentration in the area, which therefore can represent a valuable tool in source apportionment and to validate plume dispersion models.
Estimation of turbulence production by nocturnal low-level jets in Sao Paulo (Brazil)
2016 - BEU, CASSIA M.L.; MARQUES, MARCIA T.A.; NAKAEMA, WALTER M.; SAKAGAMI, YOSHIAKI; SANTOS, PEDRO A.A.; MOREIRA, A.C. de C.A.; LANDULFO, EDUARDO
Two Doppler lidars were recently used to collect data from the planetary boundary layer (PBL) in Sao Paulo city (23º32’S, 46 º38’W). The measurement campaign was carried out from December-2015 to February-2016, during the summer, which is the rainy season. Although Sao Paulo is the main city of a huge metropolitan region with more than 11 million of inhabitants and 7 millions of vehicles, according to the government agencies, the lack of PBL observational data is still a limitation for the atmospheric dispersion studies. Therefore, this work should contribute to the comprehension of PBL mechanisms and also for future atmospheric modeling studies. The data revealed that the nocturnal low-level jets (LLJs) frequently occurred along those 3 months, but its height is highly variable, from 100 m up to 650 m. It was also seen that the nocturnal LLJs can extend for several hours, right before the sunset until sunrise. This work aims to investigate the turbulence production by the nocturnal LLJs and its influence into the stable boundary layer (SBL).
ALINE/LALINET network status
2016 - LANDULFO, EDUARDO; LOPES, FABIO J. da S.; MOREIRA, GREGORI de A.; MARQUES, MARCIA T.A.; OSNEIDE, MARCELO; ANTUNA, JUAN C.; ARREDONDO, RENE E.; RASCADO, JUAN L.G.; ALADOS ARBOLEDAS, LUCAS; BASTIDAS, ALVARO; NISPERUZA, DANIEL; BEDOYA, ANDRES; MUNERA, MAURICIO; ALEGRIA, DAIRO; FORNO, RICARDO N.; SANCHEZ, MARIA F.; LAZCANO, OSCAR; MONTILLA ROSERO, ELENA; SILVA, ANTONIETA; JIMENEZ, CRISTOFER; QUEL, EDUARDO; RISTORI, PABLO; OTERO, LIDIA; BARBOSA, HENRIQUE M.J.; GOUVEIA, DIEGO A.; BARJA, BORIS
Detecting the planetary boundary layer height from low-level jet with doppler lidar measurements
2015 - MOREIRA, G. de A.; MARQUES, M.T.A.; NAKAEMA, W.; MOREIRA, A.C. de C.A.; LANDULFO, E.
Planetary boundary layer height estimation from doppler wind lidar measurements, radiosonde and hysplit model comparison
2015 - MOREIRA, G. de A.; MARQUES, M.T.A.; NAKAEMA, W.; MOREIRA, A.C. de C.A.; LANDULFO, E.