Prof. Dr. Alan Prestes
Instituto de Pesquisa e Desenvolvimento (IP&D), Laboratório de Registros Naturais (Natural Records Laboratory), University of Vale do Paraíba, São José dos Campos - SP 12244-390, Brazil
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Academic Career Length
24Years (2003-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 August 2004 in Journal of Atmospheric and Solar-Terrestrial Physics
Journal Article
EEE Echer
E Echer
WGW.D Gonzalez
W.D Gonzalez
AGA.L.C Gonzalez
A.L.C Gonzalez
Alan PrestesLVL.E.A Vieira
L.E.A VieiraNSN.J Schuch
N.J Schuch
+2
1 January 2006 in Journal of Atmospheric and Solar-Terrestrial Physics
Journal Article
22 September 2007 in Climatic Change
Journal Article
MEM. P. Souza Echer
M. P. Souza EcherEEE. Echer
E. Echer
DND. J. Nordemann
D. J. Nordemann
NRN. R. Rigozo
N. R. Rigozo
Alan Prestes1 March 2003 in Brazilian Journal of Physics
Journal Article
EEE. Echer
E. Echer
WGW. D. Gonzalez
W. D. Gonzalez
LVL. E. A. Vieira
L. E. A. VieiraALA. Dal Lago
A. Dal Lago
FGF. L. Guarnieri
F. L. Guarnieri
NSN. J. Schuch
N. J. Schuch
+2
Interplanetary shock parameters are analyzed for solar maximum (year 2000) and solar minimum (years 1995-1996) activity. Fast forward shocks are the most usual type of shock observed in the interplanetary medium near Earth's orbit, and they are 88% of the identified shocks in 2000 and 60% in 1995-1996. Average plasma and magnetic field parameters for upstream and downstream sides of the shocks were calculated, and the parameter variations through the shock were determined. Applications of the Rankine-Hugoniot equations were made, obtaining shock speeds and Alfvenic Mach number. Static and dynamic pressures variations through the shocks were also calculated. Every parameter have larger variation through the shock in solar maximum than in solar minimum, with exception of the proton density. The intensity of shocks relative to the interplanetary medium, quantified by the Alfvenic Mach Number, is observed to be similar in solar maximum and minimum. It could be explained because, during solar maximum, in despite of the higher shock speeds, the Alfvenic speed of the interplanetary medium is higher than in solar minimum.
1 May 2008 in Journal of Atmospheric and Solar-Terrestrial Physics
Journal Article
NRNivaor Rodolfo Rigozo
Nivaor Rodolfo RigozoHSHeitor Evangelista da Silva
Heitor Evangelista da Silva
DNDaniel Jean Roger Nordemann
Daniel Jean Roger Nordemann
EEEzequiel Echer
Ezequiel EcherMEMariza Pereira de Souza Echer
Mariza Pereira de Souza EcherAlan Prestes1 March 2012 in Journal of Atmospheric and Solar-Terrestrial Physics
Journal Article
PRP.H. Rampelotto
P.H. Rampelotto
NRN.R. Rigozo
N.R. Rigozo
MRM.B. da Rosa
M.B. da Rosa
Alan PrestesEFE. Frigo
E. FrigoDND.J.R. Nordemann
D.J.R. Nordemann
+1
About Me
Dr. A.P. is a distinguished academic and researcher with a strong background in Physics and Space Geophysics. His academic journey includes a Bachelor's degree in Physics from the Federal University of Santa Maria (2000) and a Bachelor's degree in Physics Education from the Lutheran University of Brazil (2020). He furthered his studies by earning a Master's degree in Space Geophysics from the National Institute for Space Research (INPE) in 2002 and a Ph.D. in Space Geophysics from the same institution in 2006.
Since 2007, Dr. A.P. has been a dedicated full-time professor and researcher at the University of Vale do Paraíba (UNIVAP). His primary research focus lies in the field of Space Geophysics, with a particular emphasis on topics such as solar activity, the Sun-Earth-Climate relationship, the interplanetary medium, geomagnetic activity, natural records, and time series analysis.
Throughout his career, A.P. has taken on leadership roles and successfully coordinated research projects funded by prestigious organizations such as FAPESP (São Paulo Research Foundation) and CNPQ (National Council for Scientific and Technological Development).