Jiang Liu
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View article: Dynamic Mode Transitions and Intermittent Features of Magnetic Reconnection at the Magnetopause: MMS Observation
Dynamic Mode Transitions and Intermittent Features of Magnetic Reconnection at the Magnetopause: MMS Observation Open
By analyzing continuous Magnetospheric Multiscale observations at the magnetopause boundary layer, combining both magnetohydrodynamic and kinetic signatures, we have successfully captured dynamic magnetic reconnection processes in exceptio…
View article: Strong Substorm Development From Polar‐Cap Arc Laydown Along the Auroral Poleward Boundary
Strong Substorm Development From Polar‐Cap Arc Laydown Along the Auroral Poleward Boundary Open
Meso‐scale enhanced flow channels often extend across the polar cap from the dayside to the nightside auroral oval, where they enter the oval via localized reconnection and cause auroral oval disturbances. Examples here show such flows ass…
View article: Statistical Distribution of Dawnside Auroral Polarization Streams
Statistical Distribution of Dawnside Auroral Polarization Streams Open
Dawnside auroral polarization streams (DAPS) are fast eastward flows in the dawn convection cell of Earth's ionosphere. With a steep flow gradient near the interface between Region 1 and 2 currents and a peak poleward of it, DAPS were sugg…
View article: Predicting characteristics of bursty bulk flows in Earth’s plasma sheet using machine learning techniques
Predicting characteristics of bursty bulk flows in Earth’s plasma sheet using machine learning techniques Open
Bursty bulk flows (BBFs) play a crucial role in transporting energy, mass, and magnetic flux from the Earth’s magnetotail to the near-Earth region. However, their impulsive nature and small spatial scale pose significant difficulties for i…
View article: Research on satellite unidirectional random vibration test method based on stress screening model
Research on satellite unidirectional random vibration test method based on stress screening model Open
This article presents a study on the satellite random vibration testing method founded on a screening stress model for batch production satellites, to optimize the mechanical testing items for these satellites and reduce development costs.…
View article: Whistler Mode Wave‐Driven Electron Scattering Properties From ELFIN Measurements of the Precipitation Ratio
Whistler Mode Wave‐Driven Electron Scattering Properties From ELFIN Measurements of the Precipitation Ratio Open
Whistler‐mode chorus and hiss waves play an important role in Earth's radiation belt electron dynamics. Direct measurements of whistler wave‐driven electron precipitation and the resultant pitch angle distribution were previously limited b…
View article: Predicting characteristics of bursty bulk flows in Earth’s plasma sheet using machine learning techniques
Predicting characteristics of bursty bulk flows in Earth’s plasma sheet using machine learning techniques Open
Bursty bulk flows (BBFs) play a crucial role in transporting energy, mass, and magnetic flux in the Earth's magnetotail, particularly in the earthward direction. However, their impulsive nature and small spatial scale present significant c…
View article: Global Three‐Dimensional Structure of Flux Transfer Events: THEMIS‐MMS‐Cluster Coordinated Observation
Global Three‐Dimensional Structure of Flux Transfer Events: THEMIS‐MMS‐Cluster Coordinated Observation Open
We present consecutive observations of Flux Transfer Events (FTEs) on 10 November 2020, using MMS, THEMIS and Cluster spacecraft located at different magnetopause locations. Two typical scale FTE signatures are successively observed by low…
View article: Spatio–Temporal Evolution of Electric Field, Magnetic Field and Thermal Infrared Remote Sensing Associated with the 2021 Mw7.3 Maduo Earthquake in China
Spatio–Temporal Evolution of Electric Field, Magnetic Field and Thermal Infrared Remote Sensing Associated with the 2021 Mw7.3 Maduo Earthquake in China Open
This study presents the spatio–temporal evolution of the electric and magnetic fields recorded by the China Seismo–Electromagnetic Satellite (CSES) and the thermal infrared remote sensing data observed by the Chinese stationary meteorologi…
View article: Red Line Diffuse‐Like Aurora Driven by Time Domain Structures Associated With Braking Magnetotail Flow Bursts
Red Line Diffuse‐Like Aurora Driven by Time Domain Structures Associated With Braking Magnetotail Flow Bursts Open
Magnetotail earthward‐propagating fast plasma flows provide important pathways for magnetosphere‐ionosphere coupling. This study reexamines a flow‐related red‐line diffuse‐like aurora event previously reported by Liang et al. (2011, https:…
View article: An Extreme Auroral Electrojet Spike During 2023 April 24th Storm
An Extreme Auroral Electrojet Spike During 2023 April 24th Storm Open
Abrupt variations of auroral electrojets can induce geomagnetically induced currents, and the ability to model and forecast them is a pressing goal of space weather research. We report an auroral electrojet spike event that is extreme in m…
View article: Red Line Diffuse-Like Aurora Driven by Time Domain Structures Associated with Braking Magnetotail Flow Bursts
Red Line Diffuse-Like Aurora Driven by Time Domain Structures Associated with Braking Magnetotail Flow Bursts Open
Magnetotail earthward-propagating fast plasma flows provide important pathways for magnetosphere-ionosphere coupling. This study reexamines a flow-related red-line diffuse-like aurora event previously reported by Liang et al., (2011), util…
View article: Space weather with an arc’s ∼2 h trip across the nightside polar cap
Space weather with an arc’s ∼2 h trip across the nightside polar cap Open
Flow channels can extend across the polar cap from the dayside to the nightside auroral oval, where they lead to localized reconnection and auroral oval disturbances. Such flow channels can persist within the polar cap >1½ hours, can mo…
View article: Properties of Quiet Magnetotail Plasma Sheet at Lunar Distances
Properties of Quiet Magnetotail Plasma Sheet at Lunar Distances Open
The Earth's magnetotail at lunar distances ( R ≈ 60 R E ) serves as a unique laboratory to study plasma dynamics in a weak, highly fluctuating magnetic field with a strong magnetic field gradient. In particular, studies of the of quiet‐tim…
View article: Polarization Method-Based Research on Magnetic Field Data Associated with Earthquakes in Northeast Asia Recorded by the China Seismo-Electromagnetic Satellite
Polarization Method-Based Research on Magnetic Field Data Associated with Earthquakes in Northeast Asia Recorded by the China Seismo-Electromagnetic Satellite Open
Previous earthquake polarization (as the ratio of vertical and horizontal components) studies using geomagnetic data were all performed with ground data. The advantage of satellite data is that it is not limited by geography. Therefore, in…
View article: Statistical Characteristics of the Electron Isotropy Boundary
Statistical Characteristics of the Electron Isotropy Boundary Open
Utilizing observations from the Electron Losses and Fields Investigation satellites, we present a statistical study of ∼2,000 events in 2019–2020 characterizing the occurrence in magnetic local time (MLT) and latitude of ≥50 keV electron i…
View article: Energetic Electron Flux Dropouts Measured by ELFIN in the Ionospheric Projection of the Plasma Sheet
Energetic Electron Flux Dropouts Measured by ELFIN in the Ionospheric Projection of the Plasma Sheet Open
Low‐altitude observations of magnetospheric particles provide a unique opportunity for remote probing of the magnetospheric and plasma states during active times. We present the first statistical analysis of a specific pattern in such obse…
View article: The Europa Clipper Magnetometer
The Europa Clipper Magnetometer Open
Global-scale properties of Europa’s putative ocean, including its depth, thickness, and conductivity, can be established from measurements of the magnetic field on multiple close flybys of the moon at different phases of the synodic and or…
View article: Equipment Disassembly and Maintenance in an Uncertain Environment Based on a Peafowl Optimization Algorithm
Equipment Disassembly and Maintenance in an Uncertain Environment Based on a Peafowl Optimization Algorithm Open
Disassembly sequence planning (DSP) is a key approach for optimizing various industrial equipment-maintenance processes. Finding fast and effective DSP solutions plays an important role in improving maintenance efficiency and quality. Howe…
View article: The Dawn‐Dusk Asymmetry of the Interaction Between Dipolarizing Flux Bundles and the Ambient Plasma: Implications for Asymmetric Wedgelets
The Dawn‐Dusk Asymmetry of the Interaction Between Dipolarizing Flux Bundles and the Ambient Plasma: Implications for Asymmetric Wedgelets Open
The substorm current wedge (SCW), the characteristic current system of Earth's substorms, has been suggested to be a collective effect of many “wedgelets,” mesoscale currents carried by magnetotail flux tubes of strong magnetic fields call…
View article: PARAGON mission concept: Seeing the Global Geospace in Mesoscale Resolution
PARAGON mission concept: Seeing the Global Geospace in Mesoscale Resolution Open
In this paper we present PARAGON, a mission concept that provides predictive understanding of geomagnetic disturbances at systems level, by connecting global evolution to mesoscale dynamics and kinetic-scale effects.PARAGON introduces a pa…
View article: The Significance of Magnetospheric Precipitation for the Coupling of Magnetosphere-Ionosphere-Thermosphere Systems: Effects on Ionospheric Conductance
The Significance of Magnetospheric Precipitation for the Coupling of Magnetosphere-Ionosphere-Thermosphere Systems: Effects on Ionospheric Conductance Open
Whitepaper #306 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional topics: space weather research/applications/operations pipeline; ground-based m…
View article: The Significance of Magnetospheric Precipitation for the Coupling of Magnetosphere-Ionosphere-Thermosphere Systems: Sources and Properties
The Significance of Magnetospheric Precipitation for the Coupling of Magnetosphere-Ionosphere-Thermosphere Systems: Sources and Properties Open
Whitepaper #305 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional topics: space weather research/applications/operations pipeline; ground-based m…
View article: Mesoscale Phenomena & their Contribution to the Global Response: A Focus on the Magnetotail Transition Region & Magnetosphere-Ionosphere Coupling
Mesoscale Phenomena & their Contribution to the Global Response: A Focus on the Magnetotail Transition Region & Magnetosphere-Ionosphere Coupling Open
An important question that is being increasingly studied across subdisciplines of Heliophysics is "how do mesoscale phenomena contribute to the global response of the system?"This white paper focuses on this question within two specific bu…
View article: Hemispheric symmetry and asymmetry of poleward moving radar auroral forms (PMRAFs) and associated polar cap patches during a geomagnetic storm
Hemispheric symmetry and asymmetry of poleward moving radar auroral forms (PMRAFs) and associated polar cap patches during a geomagnetic storm Open
Introduction: Magnetopause reconnection is known to impact the dayside ionosphere by driving fast ionospheric flows, auroral transients, and high-density plasma structures named polar cap patches. However, most of the observed reconnection…
View article: Energetic Electron Precipitation Driven by Electromagnetic Ion Cyclotron Waves from ELFIN’s Low Altitude Perspective
Energetic Electron Precipitation Driven by Electromagnetic Ion Cyclotron Waves from ELFIN’s Low Altitude Perspective Open
We review comprehensive observations of electromagnetic ion cyclotron (EMIC) wave-driven energetic electron precipitation using data collected by the energetic electron detector on the Electron Losses and Fields InvestigatioN (ELFIN) missi…
View article: Developing a Hybrid Algorithm Based on an Equilibrium Optimizer and an Improved Backpropagation Neural Network for Fault Warning
Developing a Hybrid Algorithm Based on an Equilibrium Optimizer and an Improved Backpropagation Neural Network for Fault Warning Open
In today’s rapidly evolving manufacturing landscape with the advent of intelligent technologies, ensuring smooth equipment operation and fostering stable business growth rely heavily on accurate early fault detection and timely maintenance…