G. Le
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View article: The burden and trends of infectious diseases among children aged 14 and below in China from 1990 to 2021: a systematic analysis from the 2021 global burden of disease study
The burden and trends of infectious diseases among children aged 14 and below in China from 1990 to 2021: a systematic analysis from the 2021 global burden of disease study Open
Background Infectious diseases remain one of the leading causes of death among children worldwide. This study aims to analyze the burden and trends of infectious diseases among children aged 0–14 years in China from 1990 to 2021, and evalu…
View article: Magnetosphere-Ionosphere Coupling During Negative Pressure Pulse and Formation of Ionospheric Overshielding Electric Field
Magnetosphere-Ionosphere Coupling During Negative Pressure Pulse and Formation of Ionospheric Overshielding Electric Field Open
Transient changes in solar wind dynamic pressure, such as positive and negative pressure pulses, can lead to magnetospheric compression or expansion and the formation of global current systems. These current systems, in turn, generate elec…
View article: Direct observations of cross-scale wave-particle energy transfer in space plasmas
Direct observations of cross-scale wave-particle energy transfer in space plasmas Open
The collisionless plasmas in space and astrophysical environments are intrinsically multiscale in nature, behaving as conducting fluids at macroscales and kinetically at microscales comparable to ion and/or electron gyroradii. A fundamenta…
View article: Relativistic Electron Acceleration and the “Ankle” Spectral Feature in Earth’s Magnetotail Reconnection
Relativistic Electron Acceleration and the “Ankle” Spectral Feature in Earth’s Magnetotail Reconnection Open
Electrons are accelerated to high, nonthermal energies during explosive energy-release events in space, such as magnetic reconnection. However, the properties and acceleration mechanisms of relativistic electrons directly associated with t…
View article: Relativistic Electron Acceleration and the 'Ankle' Spectral Feature in Earth's Magnetotail Reconnection
Relativistic Electron Acceleration and the 'Ankle' Spectral Feature in Earth's Magnetotail Reconnection Open
Electrons are accelerated to high, non-thermal energies during explosive energy-release events in space, such as magnetic reconnection. However, the properties and acceleration mechanisms of relativistic electrons directly associated with …
View article: Identification of Coupled Landau and Anomalous Resonances in Space Plasmas
Identification of Coupled Landau and Anomalous Resonances in Space Plasmas Open
Wave-particle resonance, a ubiquitous process in the plasma universe, occurs when resonant particles observe a constant wave phase to enable sustained energy transfer. Here, we present spacecraft observations of simultaneous Landau and ano…
View article: Direct observations of cross-scale energy transfer in space plasmas
Direct observations of cross-scale energy transfer in space plasmas Open
The collisionless plasmas in space and astrophysical environments are intrinsically multiscale in nature, behaving as conducting fluids at macroscales and kinetically at microscales comparable to ion- and/or electron-gyroradii. A fundament…
View article: Identification of coupled Landau and anomalous resonances in space plasmas
Identification of coupled Landau and anomalous resonances in space plasmas Open
Wave-particle resonance, a ubiquitous process in the plasma universe, occurs when resonant particles observe a constant wave phase to enable sustained energy transfer. Here, we present spacecraft observations of simultaneous Landau and ano…
View article: Responses of Field‐Aligned Currents and Equatorial Electrojet to Sudden Decrease of Solar Wind Dynamic Pressure During the March 2023 Geomagnetic Storm
Responses of Field‐Aligned Currents and Equatorial Electrojet to Sudden Decrease of Solar Wind Dynamic Pressure During the March 2023 Geomagnetic Storm Open
We present the observations of field‐aligned currents and the equatorial electrojet during the 23 March 2023 magnetic storm, focusing on the effect of the drastic decrease of the solar wind dynamic pressure occurred during the main phase. …
View article: Magnetospheric Time‐History in Storm‐Time Magnetic Flux Dynamics: A Global Simulation Campaign
Magnetospheric Time‐History in Storm‐Time Magnetic Flux Dynamics: A Global Simulation Campaign Open
This paper aims to quantify the magnetospheric magnetic flux contents under moderate to intense space weather conditions using global simulations. This study is a companion to Akhavan‐Tafti, Atilaw, et al. (2023, https://doi.org/10.1029/20…
View article: Responses of field-aligned currents and equatorial electrojet to sudden decrease of solar wind dynamic pressure during the March 2023 geomagnetic storm
Responses of field-aligned currents and equatorial electrojet to sudden decrease of solar wind dynamic pressure during the March 2023 geomagnetic storm Open
We present a study of the magnetosphere-ionosphere coupling during the 23 March 2023 magnetic storm, focusing on the effect of the drastic decrease of the solar wind dynamic pressure occurred during the main phase. Our observations show th…
View article: Observations of solar wind-magnetosphere-ionosphere coupling and its impact on equatorial ionospheric electrodynamics during the March and April 2023 geomagnetic storms
Observations of solar wind-magnetosphere-ionosphere coupling and its impact on equatorial ionospheric electrodynamics during the March and April 2023 geomagnetic storms Open
The low-latitude ionosphere is effectively shielded from the high latitude convection electric field during geomagnetic quiet times because region-2 field-aligned currents associated with the partial ring current act to oppose the convecti…
View article: Electron Scale Coherent Structure as Micro Accelerator in the Earth’s Magnetosheath
Electron Scale Coherent Structure as Micro Accelerator in the Earth’s Magnetosheath Open
Turbulent energy dissipation is a fundamental process in plasma physics that has not been settled. It is generally believed that the turbulent energy is dissipated at electron scales leading to electron energization in magnetized plasmas. …
View article: Electron scale coherent structure as micro accelerator in the Earth’s magnetosheath
Electron scale coherent structure as micro accelerator in the Earth’s magnetosheath Open
Turbulent energy dissipation is a fundamental process in plasma physics that has not been settled. It is generally believed that the turbulent energy is dissipated at electron scales leading to electron energization in magnetized plasmas. …
View article: Study on the Galvanic Interaction of Gold and Main Associated Minerals Based on Density Functional Theory
Study on the Galvanic Interaction of Gold and Main Associated Minerals Based on Density Functional Theory Open
The galvanic interaction of gold and associated sulfide minerals in thiocyanate systems has a significant impact on gold leaching. The density functional theory was used to further reveal the galvanic interaction between gold and associate…
View article: Magnetoseismology in a New Era of Magnetospheric Research
Magnetoseismology in a New Era of Magnetospheric Research Open
Whitepaper #063 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research. Additional topics: planetary magnetospheres; ground-based missions/projects; space-based missions/projects.
View article: Beyond AMPERE-NEXT: Envisioning the Next System of Global High-Latitude Electrodynamics
Beyond AMPERE-NEXT: Envisioning the Next System of Global High-Latitude Electrodynamics Open
Whitepaper #420 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research; infrastructure/workforce/other programmatic. Additional topics: planetary magnetospheres; system science; space-based …
View article: Enhance ionospheric electric field and current observations to better understand the E-region electrodynamics
Enhance ionospheric electric field and current observations to better understand the E-region electrodynamics Open
The equatorial ionosphere in the E-region (~100-150 km altitude) is largely affected by both external and internal drivers of the solar-and geomagnetic-activities and the forcing from below by the lower atmosphere.In this region, the inten…
View article: Space weather investigation Frontier (SWIFT)
Space weather investigation Frontier (SWIFT) Open
The Space Weather Investigation Frontier (SWIFT) mission will aim at making major discoveries on the three-dimensional structure and dynamics of heliospheric structures that drive space weather. The focus will be on Interplanetary Coronal …
View article: MAVEN Observations of Steepened Ultra-Low Frequency Waves in the Upstream Martian Foreshock Region
MAVEN Observations of Steepened Ultra-Low Frequency Waves in the Upstream Martian Foreshock Region Open
In this study, we present the analysis of steepened ultra-low frequency (ULF) waves in the foreshock region upstream of Mars’ bow shock observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft at Mars. A survey of MA…
View article: Equatorial Electrojet and Counter Electrojet caused by the 15 January 2022 Tonga Volcanic Eruption
Equatorial Electrojet and Counter Electrojet caused by the 15 January 2022 Tonga Volcanic Eruption Open
We present space and ground-based multi-instrument observations demonstrating the impact of the 2022 Tonga volcanic eruption on dayside equatorial electrodynamics. A strong counter electrojet (CEJ) was observed by Swarm and ground-based ma…
View article: Properties and Acceleration Mechanisms of Electrons Up To 200 keV Associated With a Flux Rope Pair and Reconnection X‐Lines Around It in Earth's Plasma Sheet
Properties and Acceleration Mechanisms of Electrons Up To 200 keV Associated With a Flux Rope Pair and Reconnection X‐Lines Around It in Earth's Plasma Sheet Open
The properties and acceleration mechanisms of electrons (<200 keV) associated with a pair of tailward traveling flux ropes and accompanied reconnection X‐lines in Earth's plasma sheet are investigated with MMS measurements. Energetic elect…
View article: Anomalous resonance between low-energy particles and electromagnetic plasma waves
Anomalous resonance between low-energy particles and electromagnetic plasma waves Open
Cyclotron resonance between plasma waves and charged particles is a fundamental and ubiquitous process in the plasma universe, during which the particle’s gyromotion has a constant phase in the wave field to enable a sustained energy excha…
View article: Next generation magnetic field measurements from low-earth orbit satellites enable enhanced space weather operations
Next generation magnetic field measurements from low-earth orbit satellites enable enhanced space weather operations Open
Large-scale current systems in the ionosphere and the magnetosphere are intimately controlled by the solar wind-magnetosphere interaction and the magnetosphere-ionosphere coupling. During space weather events, these currents reconfigure an…
View article: Ion Behavior at Shocklets: A Case Study of MMS Observations
Ion Behavior at Shocklets: A Case Study of MMS Observations Open
The existence of shocklets, a kind of solitary structure, has been demonstrated in the Earth's foreshock regions for decades. Their formation and evolution are believed to be controlled by ions. However, the detailed behavior of ions at th…
View article: Intense Equatorial Electrojet and Counter Electrojet Caused by the 15 January 2022 Tonga Volcanic Eruption: Space‐ and Ground‐Based Observations
Intense Equatorial Electrojet and Counter Electrojet Caused by the 15 January 2022 Tonga Volcanic Eruption: Space‐ and Ground‐Based Observations Open
We present space‐ and ground‐based multi‐instrument observations demonstrating the impact of the 2022 Tonga volcanic eruption on dayside equatorial electrodynamics. A strong counter electrojet (CEJ) was observed by Swarm and ground‐based m…
View article: Intense Equatorial Electrojet and Counter Electrojet caused by the 15 January 2022 Tonga Volcanic Eruption: Space and Ground-based Observations
Intense Equatorial Electrojet and Counter Electrojet caused by the 15 January 2022 Tonga Volcanic Eruption: Space and Ground-based Observations Open
We present space and ground-based multi-instrument observations demonstrating the impact of the 2022 Tonga volcanic eruption on dayside equatorial electrodynamics. A strong counter electrojet (CEJ) was observed by Swarm and ground-based ma…