A5089005370- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Astro and Planetary Science
- Earthquake Detection and Analysis
- Astrophysics and Cosmic Phenomena
- Geophysics and Gravity Measurements
- Atmospheric Ozone and Climate
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Agronomic Practices and Intercropping Systems
- Seismic Waves and Analysis
- Planetary Science and Exploration
- Magnetic confinement fusion research
- Astrophysical Phenomena and Observations
- Peanut Plant Research Studies
- Pulsars and Gravitational Waves Research
- Geophysics and Sensor Technology
- GNSS positioning and interference
- Advanced Image Fusion Techniques
- Image and Signal Denoising Methods
- Magnetic Properties and Applications
- Spacecraft Design and Technology
- Geophysical and Geoelectrical Methods
- Superconducting Materials and Applications
National Space Science Center
2016-2025
Chinese Academy of Sciences
2015-2025
University of Science and Technology of China
2014-2025
Hefei University
2025
China Agricultural University
2022-2024
Research Center for Eco-Environmental Sciences
2023-2024
University of Chinese Academy of Sciences
2010-2023
Institute of Soil Science
2008
The SMILE ground segment comprises the Chinese Academy of Sciences (CAS) and European Space Agency (ESA) segment, which collaborate closely on this mission. Ground Support System (GSS) Science Application (SAS) are two important components CAS segment. Development these systems began in 2016, focusing requirements for addressing significant challenges associated with GSS is primarily responsible data reception, mission operations, processing, management, services. It has established an...
Abstract The impact of geomagnetically induced currents (GICs) on the power networks at middle and low latitudes has attracted attention in recent years with increase large‐scale networks. In this study, we report GIC monitored two low‐latitude 500 kV substations China during large storm 17 March 2015. due to sudden commencement (SSC) was much higher than that main phase. This phenomenon is more likely happen locations, highlighting importance SSC inducing Furthermore, ran a global MHD model...
The Soft X-ray Imager (SXI) is part of the scientific payload Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission. SMILE a joint science mission between European Space Agency (ESA) and Chinese Academy Sciences (CAS) due for launch in 2025. SXI compact telescope with wide field-of-view (FOV) capable encompassing large portions Earth's magnetosphere from vantage point orbit. sensitive to soft X-rays produced by Wind Charge eXchange (SWCX) process when heavy ions solar origin...
Abstract The magnetopause deformation due to the upstream magnetosheath pressure perturbations is important understand solar wind‐magnetosphere coupling process, but how identify such events from in situ spacecraft observations still challenging. In this study, we investigate crossing with fast‐moving cold ions magnetosphere Magnetospheric Multiscale observations, and find when are present at magnetopause, they closely associated deformation, which featured by fast motion significant normal...
Abstract The soft X‐ray emissions from the Earth's magnetosheath and cusp regions are simulated under different solar wind conditions, based on PPMLR‐MHD code. images observed by a hypothetical telescope presented, basic responses of magnetopause discernable in these images. From certain viewing geometries, position equatorial plane, as well latitudinal scales azimuthal extent can be directly extracted With reconstructed positions, issues we able to analyze include but not limited...
Abstract The LEXI and SMILE missions will provide soft X‐ray images of the Earth's magnetosheath cusps after their anticipated launch in 2023 2024, respectively. IBEX mission showed potential an Energetic Neutral Atom (ENA) instrument to image dayside cusps, albeit over long hours required raster with a single pixel imager. Thus, it is timely discuss two imaging techniques relevant science topics. We simulate low‐ENA that might be observed by virtual spacecraft during interesting solar wind...
ABSTRACT Continuous monitoring of seismogenic faults can advance our understanding the evolution process, holding important keys for forecasting future earthquakes. We report here seismic velocity variations around Anninghe fault zone in southwest China based on interferometry techniques. observed that tidal forces significantly impact changes within fracture zone, inducing periodic diurnal, semidiurnal and monthly scales. Moreover, response to Earth tides is notably more pronounced compared...
Abstract A major challenge in solar‐terrestrial physics is to understand the large‐scale dynamics of planetary magnetospheres, such as motion Earth's magnetopause. Currently, a combination situ measurements and numerical modeling has been used address this challenge, but no global imaging available. The discovery soft X‐rays by solar wind charge exchange (SWCX) process offers an opportunity image emitted X‐ray photons. SMILE mission, due for launch late 2025, will carry wide field view...
The Earth’s magnetosheath is a vital source region of soft X-ray emissions generated by the solar wind charge exchange (SWCX) mechanism in geospace. Soft imaging provides valuable insights into overall morphology magnetosheath. Nevertheless, dynamic variations images during extreme space weather have not been comprehensively studied. Using global magnetohydrodynamic code, we simulated temporal magnetosphere on 10-11 May 2024, most intense geomagnetic storm Solar Cycle 25. entire event are...
The geomagnetic cusp is a region that the solar wind plasma can directly enter. Therefore, studying dynamic response of to variations important. This paper uses global MHD simulation investigate spatial and temporal boundaries in an IMF  southward turning. It revealed equatorward boundary begins move toward lower latitudes after magnetopause reconnection starts, intermittent way. Dynamic velocity thermal temperature are correlated distribution Flux Transfer Events on day-side...
The Earth's magnetosheath is a vital source region of soft X-ray emissions generated by the solar wind charge exchange (SWCX) mechanism in geospace. Soft imaging provides valuable insights into overall morphology magnetosheath. Nevertheless, dynamic variations images during extreme space weather have not been comprehensively studied. Using global magnetohydrodynamic code, we simulated temporal magnetosphere on 10-11 May 2024, most intense geomagnetic storm Solar Cycle 25. entire event are...
The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) is a joint mission of the European Space Agency (ESA) and Chinese Academy Sciences (CAS). Its primary objective to investigate Earth's magnetosphere's dynamic response solar (SW) impacts through simultaneous in situ measurements magnetosheath plasma magnetic fields, X-ray imaging cusps, UV global auroral distributions. In this study, extremely magnetopause deformations associated with Hot Flow Anomalies (HFAs) are examined using...
Abstract Imaging is one of the essential techniques to observe astronomical structures. While analyzing observed images, it a challenge in many scientific fields reconstruct 3‐D structures from 2‐D image(s). This report discusses this context reconstructing structure Earth's magnetosphere X‐ray image and presents new technique. Specifically, finds optimum match tangent directions derived parameterized magnetopause function. We name approach as fitting (TFA). TFA further validated based on...
The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) is a joint mission of the European Space Agency (ESA) and Chinese Academy Sciences (CAS). Primary goals are investigating dynamic response Earth's magnetosphere to solar (SW) impact via simultaneous in situ magnetosheath plasma magnetic field measurements, X-Ray images cusps, UV global auroral distributions. Magnetopause deformations associated with high speed jets (HSJs) under quasi-parallel interplanetary condition studied using...
Abstract This paper simulates the Kelvin‐Helmholtz wave (KHW)‐induced X‐ray emissions at low‐latitude magnetopause based on a global MHD code. A method is proposed to extract KHW information from intensity measured by hypothetical telescope onboard satellite assumed with low Earth orbit. Specifically, high latitude subtracted map as background highlight role of KHW. Using this method, features such vortex velocity, perturbation degree, spatial distribution, and temporal evolution could be...
Abstract Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) is a novel self-standing mission dedicated to observing the solar wind–magnetosphere coupling via simultaneous in situ wind/magnetosheath plasma and magnetic field measurements, soft X-ray images of magnetosheath polar cusps, UV global auroral distributions. While analyzing observed after launch SMILE, it will be challenging task reconstruct 3-dimensional surface magnetopause from 2-dimensional images. Therefore, one most...
Following our earlier work on tomographic reconstruction of the magnetosheath soft X-ray emissions with superposed epoch analysis many images recorded from a single spacecraft we now explore instantaneous and magnetopause using few simultaneously spacecraft. This is motivated by prospect possibly having two or three imagers in space coming years, that phenomena which occur at boundary, such as reconnection events pressure pulse responses, do not lend themselves well to analysis. If...
Here is reported in situ observation of energetic electrons (∼100-500 keV) associated with magnetic reconnection the solar wind by ACE and Wind spacecraft. The properties this cloud driving electron acceleration problem are discussed. Further analyses indicate that electric field Fermi-type mechanism two fundamental elements processes trapping effect specific configuration maintains status increases totally gained energy.
Abstract Imaging magnetospheric satellite missions provide information, which is complementary to in situ observations. often able an instantaneous picture of large‐scale structures, whereas measurements, even multipoint can only average view structure. But imaging also presents some challenges. When three‐dimensional structures need be extracted from two‐dimensional images, it necessary either make suitable assumptions or record a large enough number images different viewing geometries...
Abstract The magnetosheath and near‐Earth solar wind emit X‐rays due to charge‐exchange between the extended atmosphere highly ionized particles in wind. These emissions can be used remotely sense dynamic processes this region. Solar Wind Magnetosphere Ionosphere Link Explorer mission will carry out these measurements. In a previous paper, we looked at effect of photon counting statistics on determining location magnetopause bow shock. paper explore, through simulations, more challenging...