Osmar Pinto Junior
CV Lattes
ResearcherID
Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). Instituto Nacional de Pesquisas Espaciais (INPE) (Institutional affiliation for the last research proposal) Birthplace: Brazil
graduate at Engenharia Eletrônica from Pontifícia Universidade Católica do Rio Grande do Sul (1977), master's at Geophysics from Instituto Nacional de Pesquisas Espaciais (1979) and ph.d. at Geophysics from Instituto Nacional de Pesquisas Espaciais (1984). Has experience in Geosciences, focusing on Geophysics, acting on the following subjects: lightning, relampagos, cloud-to-ground lightning, lightning detection system and raios. (Source: Lattes Curriculum)
- Detection of trends in the lightning activity in Brazil related to climatic changes, AP.TEM
Abstract
The general goal of the project is investigate trends in the lightning occurrence and characteristics in Brazil that can be related to the climatic changes due to global warming. The investigation will be focused not only in mean values but also in the frequency of extreme values of the lightning characteristics. The analysis will include large urban areas where large changes in the env...
- Lightning observations in the South of Brazil using a safir system, AR.BR
- Brazilian Program to Monitor Lightning, AP.TEM
Abstract
The general goal of the project is to investigate the lightning activity and characteristics in Brazil. These studies are of main concern due to the high flash densities in the country. The last estimate, based on the comparison between satellite and ground network data, suggests that on average approximately 50 to 70 million cloud-to-ground lightning flashes occur every year. The focus...
(Only some records are available in English at this moment)
- Extreme lightning events in São Paulo: cases observed and future scenarios, BP.DR
Abstract
The study of lightning is a topic that has been gaining significant attention in the scientific community , because from the monitoring periods of increased incidence of discharges can issue warnings characteristics such as intensity , duration and severity of storms , allowing preventive measures to be taken in short term, to minimize impacts of severe weather phenomena . Thus , the ai...
- On the mechanisms that lead to multiple ground contacts in lightning, BP.DR
Abstract
The present document consists of a doctoral thesis proposal that aims at analyzing two main questions: how does the current cutoff takes place in lightning (particularly in the context of the bidirectional leader model); and what is the nature of lightning flashes that create multiple ground terminations. The former analysis will be based primarily in data provided by a network of slow ...
- High-speed camera network for monitoring and study lightning (RAMMER Project), BP.PD
Abstract
This project proposes, for the first time, a development and applications of a high-speed cameras network for the observations and studying of lightning flashes. The high-speed cameras are being purchased by the Thematic Project (FAPESP 08/56711-4) started in December 2009 and have the ability to record high-resolution video (up to 1632 x 1200 pixels at 1000 frames per second). A robust...
(Only some records are available in English at this moment)
- On the mechanisms that lead to current cutoff and multiple ground contacts in lightning, BE.EP.DR
Abstract
This research project aims at the analyses of two main questions: (i) How does the process of channel current cutoff occur in lightning (particularly in the context of the bidirectional leader model)? (ii) What is the nature of the lightning flashes that create multiple ground contact points? The first analysis will be based primarily on data from a network of slow electric field antenn...
| 14 / 9 | Completed research grants |
| 12 / 4 | Completed scholarships in Brazil |
| 1 / 1 | Completed scholarships abroad |
| 27 / 14 | All research grants and scholarships |
| Associated processes | |
(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)
| Publications | 11 |
| Citations | 168 |
| Cit./Article | 15.3 |
| Data from Web of Science | |
SARAIVA, A. C. V.; SABA, M. M. F.; PINTO, JR., O.; CUMMINS, K. L.; KRIDER, E. P.; CAMPOS, L. Z. S.. A comparative study of negative cloud-to-ground lightning characteristics in Sao Paulo (Brazil) and Arizona (United States) based on high-speed video observations. JOURNAL OF GEOPHYSICAL RESEARCH, v. 115, JUN 2 2010. Web of Science Citations: 28.
PINTO‚ O.; PINTO‚ I.; SABA‚ MMF; SOLORZANO‚ NN; GUEDES‚ D.. Return stroke peak current observations of negative natural and triggered lightning in Brazil. ATMOSPHERIC RESEARCH, v. 76, n. 1, p. 493-502, 2005.
PINTO, JR., O.; PINTO, I. R. C. A.. On the sensitivity of cloud-to-ground lightning activity to surface air temperature changes at different timescales in Sao Paulo, Brazil. JOURNAL OF GEOPHYSICAL RESEARCH, v. 113, n. D20, OCT 31 2008. Web of Science Citations: 17.
PINTO, JR., O.; PINTO, I. R. C. A.; DE CAMPOS, D. R.; NACCARATO, K. P.. Climatology of large peak current cloud-to-ground lightning flashes in southeastern Brazil. JOURNAL OF GEOPHYSICAL RESEARCH, v. 114, AUG 26 2009. Web of Science Citations: 8.
NACCARATO‚ KP; PINTO JR‚ O.; PINTO‚ I.. Evidence of thermal and aerosol effects on the cloud-to-ground lightning density and polarity over large urban areas of Southeastern Brazil. Geophysical Research Letters, v. 30, n. 13, p. 1674, 2003.
NACCARATO‚ KP; PINTO‚ O.. Improvements in the detection efficiency model for the Brazilian lightning detection network (BrasilDAT). ATMOSPHERIC RESEARCH, v. 91, n. 2, p. 546-563, 2009.
LAY‚ E.H.; HOLZWORTH‚ R.H.; RODGER‚ C.J.; THOMAS‚ J.N.; PINTO JR‚ O.; DOWDEN‚ R.L.. WWLL global lightning detection system: Regional validation study in Brazil. Geophysical Research Letters, v. 31, n. 3, p. L03102, 2004.
SARAIVA, A. C. V.; CAMPOS, L. Z. S.; WILLIAMS, E. R.; ZEPKA, G. S.; ALVES, J.; PINTO, JR., O.; HECKMAN, S.; BUZATO, T. S.; BAILEY, J. C.; MORALES, C. A.; et al. High-speed video and electromagnetic analysis of two natural bipolar cloud-to-ground lightning flashes. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v. 119, n. 10, p. 6105-6127, MAY 27 2014. Web of Science Citations: 16.
CAMPOS, LEANDRO Z. S.; SABA, MARCELO M. F.; KRIDER, E. PHILIP. On 2 stepped leaders in negative cloud-to-ground lightning. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v. 119, n. 11, p. 6749-6767, JUN 16 2014. Web of Science Citations: 1.
SABA‚ M.M.F.; PINTO‚ O.; SOLÓRZANO‚ N.N.; EYBERT-BERARD‚ A.. Lightning current observation of an altitude-triggered flash. ATMOSPHERIC RESEARCH, v. 76, n. 1, p. 402-411, 2005.
CAMPOS, LEANDRO Z. S.; SABA, MARCELO M. F.; WARNER, TOM A.; PINTO, JR., OSMAR; KRIDER, E. PHILIP; ORVILLE, RICHARD E.. High-speed video observations of natural cloud-to-ground lightning leaders - A statistical analysis. ATMOSPHERIC RESEARCH, v. 135, p. 285-305, JAN 2014. Web of Science Citations: 38.
SABA, MARCELO M. F.; CAMPOS, LEANDRO Z. S.; KRIDER, E. PHILIP; PINTO, JR., OSMAR. High-speed video observations of positive ground flashes produced by intracloud lightning. Geophysical Research Letters, v. 36, JUN 26 2009. Web of Science Citations: 25.
SAO SABBAS, F. T.; TAYLOR, M. J.; PAUTET, P. -D.; BAILEY, M.; CUMMER, S.; AZAMBUJA, R. R.; SANTIAGO, J. P. C.; THOMAS, J. N.; PINTO, O.; SOLORZANO, N. N.; et al. Observations of prolific transient luminous event production above a mesoscale convective system in Argentina during the Sprite2006 Campaign in Brazil. JOURNAL OF GEOPHYSICAL RESEARCH, v. 115, NOV 2 2010. Web of Science Citations: 10.
HOLZWORTH‚ RH; MCCARTHY‚ MP; THOMAS‚ JN; CHIN‚ J.; CHINOWSKY‚ TM; TAYLOR‚ M.J.; PINTO JR‚ O.. Strong electric fields from positive lightning strokes in the stratosphere. Geophysical Research Letters, v. 32, n. 4, p. L04809, 2005.
SABA‚ M.M.F.; PINTO‚ O.; SOLÓRZANO‚ N.N.; EYBERT-BERARD‚ A.. Lightning current observation of an altitude-triggered flash. ATMOSPHERIC RESEARCH, v. 76, n. 1, p. 402-411, 2005.
CAMPOS‚ L.Z.S.; SABA‚ M.M.F.; PINTO‚ O.; BALLAROTTI‚ M.G.. Waveshapes of continuing currents and properties of M-components in natural negative cloud-to-ground lightning from high-speed video observations. ATMOSPHERIC RESEARCH, v. 84, n. 4, p. 302-310, 2007.
CAMPOS, LEANDRO Z. S.; SABA, MARCELO M. F.. Visible channel development during the initial breakdown of a natural negative cloud-to-ground flash. Geophysical Research Letters, v. 40, n. 17, p. 4756-4761, SEP 16 2013. Web of Science Citations: 18.
PAES DOS SANTOS, ANA PAULA; COELHO, CAIO A. S.; PINTO JUNIOR, OSMAR; QUADROS DOS SANTOS, SERGIO RODRIGO; LOPES DE LIMA, FRANCISCO JOSE; DE SOUZA, EVERALDO BARREIROS. Climatic diagnostics associated with anomalous lightning incidence during the summer 2012/2013 in Southeast Brazil. INTERNATIONAL JOURNAL OF CLIMATOLOGY, v. 38, n. 2, p. 996-1009, FEB 2018. Web of Science Citations: 4.