Search Results - "Marchezi, J. P."
-
1
New Findings Relating Tidal Variability and Solar Activity in the Low Latitude MLT Region
Published in Journal of geophysical research. Space physics (01-03-2022)“…Mesospheric winds have been measured by meteor radar at Cachoeira Paulista (22.7°S; 45°W) since April 1999. The tidal components were analyzed over about…”
Get full text
Journal Article -
2
High‐Energy Electron Flux Enhancement Pattern in the Outer Radiation Belt in Response to the Interplanetary Coronal Mass Ejections
Published in Journal of geophysical research. Space physics (01-11-2023)“…The high‐energy electron flux enhancement pattern in the outer radiation belt is observed under the influence of the Interplanetary Coronal Mass Ejections…”
Get full text
Journal Article -
3
High‐Energy Electron Flux Enhancement Pattern in the Outer Radiation Belt in Response to the Alfvénic Fluctuations Within High‐Speed Solar Wind Stream: A Statistical Analysis
Published in Journal of geophysical research. Space physics (01-08-2021)“…The coupling response between solar wind structures and the magnetosphere is highly complex, leading to different effects in the outer radiation belt electron…”
Get full text
Journal Article -
4
Electron Flux Variability and Ultra‐Low Frequency Wave Activity in the Outer Radiation Belt Under the Influence of Interplanetary Coronal Mass Ejections and High‐Speed Solar Wind Streams: A Statistical Analysis From the Van Allen Probes Era
Published in Journal of geophysical research. Space physics (01-08-2022)“…The ultra‐low frequency (ULF) waves can stochastically accelerate radiation belt electrons. Radial diffusion is a well‐established mechanism that can enhance…”
Get full text
Journal Article -
5
The 14 December 2020 Total Solar Eclipse Effects on Geomagnetic Field Variations and Plasma Density Over South America
Published in Journal of geophysical research. Space physics (01-02-2023)“…We discuss the effects in the geomagnetic field variations and ionospheric plasma density modifications caused by the Total Solar Eclipse that occurred on 14…”
Get full text
Journal Article -
6
Global Modeling of the Inner Magnetosphere Under the Influence of a Magnetic Cloud Associated With an Interplanetary Coronal Mass Ejection: Energy Conversion and Ultra‐Low Frequency Wave Activity
Published in Journal of geophysical research. Space physics (01-10-2022)“…The interaction and response of the magnetic cloud‐type structure with Earth's magnetosphere were modeled by the SWMF/BATS‐R‐US code. The conversion of…”
Get full text
Journal Article -
7
Acceleration of radiation belt electrons and the role of the average interplanetary magnetic field Bz component in high‐speed streams
Published in Journal of geophysical research. Space physics (01-10-2017)“…In this study we examine the recovery of relativistic radiation belt electrons on 15–16 November 2014, after a previous reduction in the electron flux…”
Get full text
Journal Article -
8
A Global Magnetohydrodynamic Simulation Study of Ultra-low-frequency Wave Activity in the Inner Magnetosphere: Corotating Interaction Region + Alfvénic Fluctuations
Published in The Astrophysical journal (20-11-2019)“…Using global magnetohydrodynamic (MHD) simulations, we investigate the role played by a complex solar structure composed of a corotating interaction region…”
Get full text
Journal Article -
9
Contribution of ULF Wave Activity to the Global Recovery of the Outer Radiation Belt During the Passage of a High‐Speed Solar Wind Stream Observed in September 2014
Published in Journal of geophysical research. Space physics (01-03-2019)“…Energy coupling between the solar wind and the Earth's magnetosphere can affect the electron population in the outer radiation belt. However, the precise role…”
Get full text
Journal Article -
10
Ultra-relativistic electron flux enhancement under persistent high speed solar wind stream
Published in Frontiers in astronomy and space sciences (15-11-2024)“…The physical mechanisms usually applied to explain the relativistic electron enhancement have been delved into to elucidate non-adiabatic electron acceleration…”
Get full text
Journal Article -
11
On the Contribution of EMIC Waves to the Reconfiguration of the Relativistic Electron Butterfly Pitch Angle Distribution Shape on 2014 September 12—A Case Study
Published in The Astrophysical journal (10-02-2019)“…Abstract Following the arrival of two interplanetary coronal mass ejections on 2014 September 12, the Relativistic Electron–Proton Telescope instrument on…”
Get full text
Journal Article -
12
Outer Radiation Belt Dropout Dynamics Following the Arrival of Two Interplanetary Coronal Mass Ejections
Published in Geophysical research letters (16-02-2016)“…Magnetopause shadowing and wave-particle interactions are recognized as the two primary mechanisms for losses of electrons from the outer radiation belt. We…”
Get full text
Journal Article -
13
Why can the auroral-type sporadic E layer be detected over the South America Magnetic Anomaly (SAMA) region? An investigation of a case study under the influence of the high-speed solar wind stream
Published in Frontiers in astronomy and space sciences (23-11-2023)“…The low-electron flux variability (increase/decrease) in the Earth’s radiation belts could cause low-energy Electron Precipitation (EP) to the atmosphere over…”
Get full text
Journal Article -
14
The role of the inner radiation belt dynamic in the generation of auroral-type sporadic E-layers over south American magnetic anomaly
Published in Frontiers in astronomy and space sciences (28-09-2022)“…The dynamics of the electron population in the Earth’s radiation belts affect the upper atmosphere’s ionization level through the low-energy Electron…”
Get full text
Journal Article -
15
Analysis of the different physical mechanisms in the atypical sporadic E (Es) layer occurrence over a low latitude region in the Brazilian sector
Published in Frontiers in astronomy and space sciences (25-05-2023)“…We present a study about the atypical and spreading Sporadic E-layers (Es) observed in Digisonde data. We analyzed a set of days around space weather events…”
Get full text
Journal Article -
16
The Role of Solar Wind Structures in the Generation of ULF Waves in the Inner Magnetosphere
Published in Solar physics (01-07-2017)“…The plasma of the solar wind incident upon the Earth’s magnetosphere can produce several types of geoeffective events. Among them, an important phenomenon…”
Get full text
Journal Article -
17
Comparison of geophysical patterns in the southern hemisphere mid-latitude region
Published in Advances in space research (15-11-2016)“…The effects of high-energy particle precipitation on mesospheric and stratospheric ozone have been investigated during the last decades. However, while these…”
Get full text
Journal Article -
18
Dynamic Mechanisms Associated With High‐Energy Electron Flux Dropout in the Earth's Outer Radiation Belt Under the Influence of a Coronal Mass Ejection Sheath Region
Published in Journal of geophysical research. Space physics (01-01-2021)“…The near‐Earth interplanetary environment conditions affect the dynamics of the relativistic electron population quasitrapped in the radiation belts. A complex…”
Get full text
Journal Article -
19
Worldwide study of the Sporadic E (Es) layer development during a space weather event
Published in Journal of atmospheric and solar-terrestrial physics (01-12-2022)“…This work analyzes the worldwide development of Sporadic E (Es) layers in different regions during a High-Speed Solar Wind Stream (HSS) event on March 18,…”
Get full text
Journal Article -
20
A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region
Published in Annales geophysicae (1988) (28-03-2022)“…This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event…”
Get full text
Journal Article