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The ion temperature gradient: An intrinsic property of Earth's magnetotail 

Lu, San; Artemyev, A. V.; Angelopoulos, Vassilis; Lin, Yu; Wang, Xueyi; 0000-0001-8003-9252; 0000-0001-5533-5981 (2020-06-01)
Although the ion temperature gradient along (X GSM) and across (Z GSM) the Earth's magnetotail, which plays a key role in generating the cross‐tail current and establishing pressure balance with the lobes, has been extensively ...

The ion temperature gradient: An intrinsic property of Earth's magnetotail 

Lu, San; Artemyev, A; Angelopoulos, V; Lin, Y; Wang, X (2022-11-01)
Although the ion temperature gradient along (X-GSM) and across (Z(GSM)) the Earth's magnetotail, which plays a key role in generating the cross-tail current and establishing pressure balance with the lobes, has been ...

Kinetic Alfven Waves From Magnetotail to the Ionosphere in Global Hybrid Simulation Associated With Fast Flows 

Cheng, Lei; Lin, Yu; Perez, J; Johnson, Jay; Wang, Xueyi; 0000-0002-9562-1103; 0000-0002-5619-9093 (2022-09-29)
We have used the Auburn Global Hybrid Code in 3-D to study the generation, dynamics, and global structure of kinetic Alfven waves (KAWs) from the magnetotail to the ionosphere. Our results show that KAWs are generated in ...

Kinetic Alfven waves in three-dimensional magnetic reconnection 

Liang, Ji; Lin, Yu; Johnson, Jay R.; Wang, Xueyi; Wang, Zheng-Xiong; 0000-0001-8003-9252; 0000-0001-5533-5981 (2020-06-03)
Alfvenic waves are believed to be fundamentally important in magnetic reconnection. Kinetic dynamics of particles can break the Alfven speed limit in the evolution and propagation of perturbations during reconnection. In ...

Kinetic Alfven waves in three-dimensional magnetic reconnection 

Liang, Ji; Lin, Yu; Johnson, Jay; Wang, Xueyi; Wang, Zheng-Xiong; 0000-0002-9562-1103 (2022-10-27)
Alfvenic waves are believed to be fundamentally important in magnetic reconnection. Kinetic dynamics of particles can break the Alfven speed limit in the evolution and propagation of perturbations during reconnection. In ...

Large increase in dissolved inorganic carbon flux from the Mississippi River to Gulf of Mexico due to climatic and anthropogenic changes over the 21st century 

Ren, Wei; Tian, Hanqin; Tao, Bo; Yang, Jia; Pan, Shufen; Cai, Wei-Jun; Lohrenz, Steven; He, Ruoying; Hopkinson, Charles; 0000-0002-4840-4835; 0000-0003-2019-9603; 0000-0003-3811-2975; 0000-0002-1806-4091; 0000-0003-3606-8325; 0000-0002-7331-8322; 0000-0001-7920-1427 (2023-01-26)
It is recognized that anthropogenic factors have had a major impact on carbon fluxes from land to the ocean during the past two centuries. However, little is known about how future changes in climate, atmospheric CO2, and ...

Large-Scale High-Speed Jets in Earth's Magnetosheath: Global Hybrid Simulations 

Guo, Jin; Lu, San; Lu, Quanming; Lin, Yu; Wang, Xueyi; Ren, Junyi; Hao, Yufei; Huang, Kai; Wang, Rongsheng; Gao, Xinliang; 0000-0001-9578-6250; 0000-0003-3041-2682; 0000-0002-9950-1029 (2022-11-08)
High-speed jets (HSJs) occur frequently in Earth's magnetosheath downstream of the quasiparallel bow shock. They have great impacts on the magnetosheath and the magnetosphere. Using two-dimensional global hybrid simulations, ...

Lattice thermal conductivity of MgO at conditions of Earth's interior 

Tang, Xiaoli; Dong, Jianjun (2020-06-29)
Thermal conductivity of the Earth’s lower mantle greatly impacts the mantle convection style and affects the heat conduction from the core to the mantle. Direct laboratory measurement of thermal conductivity of mantle ...

LOW-ALTITUDE OBSERVATIONS AND MODELING OF QUASI-STEADY MAGNETOPAUSE RECONNECTION 

Onsager, T; Chang, Shen-Wu; PEREZ, J; AUSTIN, J; JANOO, L (2022-09-29)
Data from two near-conjugate passes of DE 1 and DE 2 through the cusp/cleft region of the Earth's magnetosphere are presented and compared with model calculations of particle transport from the solar wind to spacecraft ...

LOW-ALTITUDE OBSERVATIONS AND MODELING OF QUASI-STEADY MAGNETOPAUSE RECONNECTION 

Onsager, T; Chang, Shen-Wu; Perez, J; Austin, J; Janoo, L (2022-09-29)
Data from two near-conjugate passes of DE 1 and DE 2 through the cusp/cleft region of the Earth's magnetosphere are presented and compared with model calculations of particle transport from the solar wind to spacecraft ...

Magnetic field rotation and transition width in rotational discontinuities and Alfven wave trains 

Lin, Yu; Lee, L; 0000-0003-4012-991X (2022-09-29)
A hybrid simulation is carried out to study the evolution of magnetic field rotations in rotational discontinuities (RDs) and large-amplitude Alfven wave trains (AWTs) whose initial field rotation angle \Delta Phi\ > 180 ...

Magnetic field rotation and transition width in rotational discontinuities and Alfven wave trains 

Lin, Y.; Lee, LC.; 0000-0001-8003-9252 (2020-06-30)
A hybrid simulation is carried out to study the evolution of magnetic field rotations in rotational discontinuities (RDs) and large-amplitude Alfven wave trains (AWTs) whose initial field rotation angle \Delta Phi\ > 180 ...

Magnetic flux rope formation within a magnetosheath hot flow anomaly 

Hasegawa, H.; Zhang, H.; Lin, Y.; Sonnerup, B. U. O.; Schwartz, S. J.; Lavraud, B.; Zong, Q. -G.; 0000-0001-8003-9252 (2020-06-09)
We report observations on 1 March 2004 by the Cluster spacecraft of a hot flow anomaly (HFA) encountered in the dayside magnetosheath near Earth's bow shock. Embedded within the HFA was a magnetic flux rope with a diameter ...

Magnetopause Reconnection as Influenced by the Dipole Tilt Under Southward IMF Conditions: Hybrid Simulation and MMS Observation 

Guo, Zhifang; Lin, Yu; Wang, Xueyi; Vines, Sarah; Lee, S; Chen, Yuxi; 0000-0002-3728-6319; 0000-0001-7288-2805; 0000-0002-7515-3285; 0000-0001-9592-4684 (2023-01-19)
Using a three-dimensional (3-D) global-scale hybrid code, the Magnetospheric Multiscale (MMS) reconnection event around 02:13 UT on 18 November 2015, highlighted in the Geospace Environment Modeling (GEM) Dayside Kinetic ...

Magnetosheath Reconnection Before Magnetopause Reconnection Driven by Interplanetary Tangential Discontinuity: A Three-Dimensional Global Hybrid Simulation With Oblique Interplanetary Magnetic Field 

Guo, Zhifang; Lin, Yu; Wang, Xueyi; Du, Aimin; 0000-0001-8003-9252 (2020-05-28)
Terrestrial dayside dynamics associated with a southward turning, oblique interplanetary magnetic field (IMF) carried by an interplanetary tangential discontinuity (TD) is investigated by performing a three-dimensional ...

Magnetosheath Reconnection Before Magnetopause Reconnection Driven by Interplanetary Tangential Discontinuity: A Three-Dimensional Global Hybrid Simulation With Oblique Interplanetary Magnetic Field 

Guo, Zhifang; Lin, Yu; Wang, Xueyi; Du, Aimin; 0000-0002-3728-6319 (2022-10-27)
Terrestrial dayside dynamics associated with a southward turning, oblique interplanetary magnetic field (IMF) carried by an interplanetary tangential discontinuity (TD) is investigated by performing a three-dimensional ...

Magnetotail-Inner Magnetosphere Transport Associated With Fast Flows Based on Combined Global-Hybrid and CIMI Simulation 

Lin, Y; Wang, X; Fok, M; Buzulukova, N; Perez, J; Cheng, L; Chen, L; 0000-0002-4768-189X; 0000-0002-5619-9093; 0000-0002-8127-2248 (2022-11-01)
Using the combined Auburn global hybrid simulation code in 3-D (ANGIE3D) and the Comprehensive Inner Magnetosphere-Ionosphere (CIMI) model, we investigate the self-consistent connection of fast flow injections from the ...

Maskelynite formation via solid-state transformation: Evidence of infrared and X-ray anisotropy 

Jaret, Steven; Woerner, William; Phillips, Brian; Ehm, Lars; Nekvasil, Hanna; Wright, Shawn; Glotch, Timothy; 0000-0001-5485-0316; 0000-0003-1265-9470; 0000-0001-8776-3235 (2022-11-08)
We present the results of a combined study of shocked labradorite from the Lonar crater, India, using optical microscopy, micro-Raman spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, high-energy X-ray total ...

Modeling of a New Electron Acceleration Mechanism Ahead of Streamers 

Ihaddadene, Kevin M. A.; Dwyer, Joseph R.; Liu, Ningyu; Celestin, Sebastien; Shi, Feng (2020-05-26)
Head‐on collisions between negative and positive streamers have been proposed as a mechanism behind X‐ray emissions by laboratory spark discharges. Recent simulations using plasma fluid and particle in cell models of a ...

Modeling of a New Electron Acceleration Mechanism Ahead of Streamers 

Ihaddadene, Keven; Liu, Ningyu; Celestin, Sebastien; Shi, Feng; Joseph, Dwyer; 0000-0002-2220-3197 (2022-11-01)
Head-on collisions between negative and positive streamers have been proposed as a mechanism behind X-ray emissions by laboratory spark discharges. Recent simulations using plasma fluid and particle in cell models of a ...