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Data for: Multi-delay coherence imaging spectroscopy optimized for ion temperature measurements in the divertor plasma of the Wendelstein 7-X stellarator 

Kriete, David M; Perseo, Valeria; Gradic, Dorothea; Ennis, David A; König, Ralf; Maurer, David A; the W7-X Team; 0000-0002-3657-2911 (2024-03-15)
A new coherence imaging spectroscopy (CIS) diagnostic optimized to measure the C2+ impurity ion temperature Ti spatial distribution in the divertor plasma of the W7-X stellarator is designed, tested, and validated. Using ...

DAVIS: A direct algorithm for velocity-map imaging system 

Harrison, G. R.; Vaughan, J. C.; Hidle, B.; Laurent, G. M.; https://orcid.org/0000-0002-3700-7412 (2020-06-25)
In this work, we report a direct (non-iterative) algorithm to reconstruct the three-dimensional (3D) momentum-space picture of any charged particles collected with a velocity-map imaging system from the two-dimensional ...

DAVIS: A direct algorithm for velocity-map imaging system 

Harrison, G. R.; Vaughan, J. C.; Hidle, B.; Laurent, G. M.; https://orcid.org/0000-0002-3700-7412 (2020-06-25)
In this work, we report a direct (non-iterative) algorithm to reconstruct the three-dimensional (3D) momentum-space picture of any charged particles collected with a velocity-map imaging system from the two-dimensional ...

Dipolarization fronts as earthward propagating flux ropes: A three-dimensional global hybrid simulation 

Lu, San; Lin, Yu; Wang, Xueyi; Wang, Shui; 0000-0001-8003-9252; 0000-0001-5533-5981 (2020-06-03)
Dipolarization fronts (DFs) as earthward propagating flux ropes (FRs) in the Earth's magnetotail are presented and investigated with a three-dimensional (3-D) global hybrid simulation for the first time. In the simulation, ...

Dipolarization fronts as earthward propagating flux ropes: A three-dimensional global hybrid simulation 

Lu, San; Lu, Quanming; Lin, Yu; Wang, Xueyi; Ge, Yasong; Wang, Rongsheng; Zhou, Meng; Fu, Huishan; Huang, Can; Wu, Mingyu; Wang, Shui; 0000-0002-9511-7660; 0000-0002-4701-7219 (2023-01-25)
Dipolarization fronts (DFs) as earthward propagating flux ropes (FRs) in the Earth's magnetotail are presented and investigated with a three-dimensional (3-D) global hybrid simulation for the first time. In the simulation, ...

Dynamics of ring current ions as obtained from IMAGE HENA and MENA ENA images 

Perez, JD; Zhang, XX; Brandt, PCS; Mitchell, DG; Jahn, JM; Pollock, CJ (2020-06-18)
Ion distributions from three storms in the year 2000 have been obtained from HENA and MENA ENA images at 27-39 keV and 5-12 keV, respectively. The observed motion of the ring current is compared with calculations of expected ...

Dynamics of ring current ions as obtained from IMAGE HENA and MENA ENA images 

Perez, J; Zhang, X; Brandt, P; Mitchell, D; Jahn, J; Pollock, C; 0000-0002-4644-0306; 0000-0003-1960-2119 (2022-10-27)
Ion distributions from three storms in the year 2000 have been obtained from HENA and MENA ENA images at 27-39 keV and 5-12 keV, respectively. The observed motion of the ring current is compared with calculations of expected ...

Effect of continued nitrogen enrichment on greenhouse gas emissions from a wetland ecosystem in the Sanjiang Plain, Northeast China: A 5 year nitrogen addition experiment 

Song, Changchun; Wang, Lili; Tian, Hanqin; Liu, Deyan; Lu, Chaoqun; Xu, Xiaofeng; Zhang, Lihua; Yang, Guisheng; Wan, Zhongmei; 0000-0002-6553-6514; 0000-0002-1806-4091; 0000-0002-1526-0513; 0000-0002-6553-6514; 0000-0002-1526-0513 (2023-01-25)
Mounting evidence supports that wetland ecosystems, one of the largest carbon pools on the earth, are exposed to ample nitrogen (N) additions due to atmospheric deposition or N loading from upstream agricultural fertilizer ...

Effect of IMF B-y on the Entry of Solar Wind Ions Into the Near-Earth Tail Lobe: Global Hybrid Simulation and MMS Observation 

Wang, Chih-Ping; Xing, Xiaoyan; Wang, Xueyi; Avanov, Levon; Lin, Yu; Strangeway, Robert; Wei, H (2022-11-08)
Global simulations predict that the low-latitude mantle may be an important pathway for the solar wind entry into the tail magnetosphere close to the current sheet when interplanetary magnetic field (IMF) B-y dominates ...

Equatorial Evolution of the Fast Magnetosonic Mode in the Source Region: Observation-Simulation Comparison of the Preferential Propagation Direction 

Min, Kyungguk; Boardsen, Scott A.; Denton, Richard E.; Liu, Kaijun; 0000-0001-5882-1328 (2020-05-28)
Recent analysis of an event observed by the Van Allen Probes in the source region outside the plasmapause has shown that fast magnetosonic waves (also referred to as equatorial noise) propagate preferentially in the azimuthal ...

Equatorial Evolution of the Fast Magnetosonic Mode in the Source Region: Observation-Simulation Comparison of the Preferential Propagation Direction 

Min, Kyungguk; Boardsen, Scott; Denton, Richard; Liu, Kaijun; 0000-0001-5882-1328 (2023-01-25)
Recent analysis of an event observed by the Van Allen Probes in the source region outside the plasmapause has shown that fast magnetosonic waves (also referred to as equatorial noise) propagate preferentially in the azimuthal ...

Equatorial Pitch Angle Distributions of 1-50 keV Electrons in Earth's Inner Magnetosphere: An Empirical Model Based on the Van Allen Probes Observations 

Zhao, H; Friedel, R; Chen, Y; Baker, D; Li, X; Malaspina, D; Larsen, B; Skoug, R; Funsten, H; Reeves, G; Boyd, A; 0000-0003-1191-1558; 0000-0002-5228-0281; 0000-0001-8292-7691; 0000-0002-1683-3192; 0000-0003-4515-0208 (2023-01-19)
Using 7 years of data from the Helium, Oxygen, Proton, and Electron instrument on the Van Allen Probes, equatorial pitch angle distributions (PADs) of 1-50 keV electrons in Earth's inner magnetosphere are investigated ...

EUV emissions from solar wind charge exchange in the Earth's magnetosheath: Three-dimensional global hybrid simulation 

He, Fei; Zhang, Xiao-Xin; Wang, Xueyi; Chen, Bo; 0000-0001-5533-5981 (2020-06-05)
In this paper, a three-dimensional (3-D) global hybrid simulation code and a 3-D geocoronal hydrogen model are used to systematically study the extreme ultraviolet (EUV) emissions at 30.4nm produced by solar wind charge ...

EUV emissions from solar wind charge exchange in the Earth's magnetosheath: Three-dimensional global hybrid simulation 

He, Fei; Zhang, Xiao-Xin; Wang, Xue-Yi; Chen, Bo; 0000-0003-0542-2686; 0000-0002-7759-7402 (2022-10-25)
In this paper, a three-dimensional (3-D) global hybrid simulation code and a 3-D geocoronal hydrogen model are used to systematically study the extreme ultraviolet (EUV) emissions at 30.4nm produced by solar wind charge ...

Evolution of CIR storm on 22 July 2009 

Perez, J. D.; Grimes, E. W.; Goldstein, J.; McComas, D. J.; Valek, P.; Billor, N. (2020-06-09)
Global images of ion intensities are deconvolved from TWINS ENA images during the main and recovery phase of a CIR storm on 22 July 2009. The global spatial ion images taken at different times, along with solar wind data, ...

Evolution of CIR storm on 22 July 2009 

Perez, J.D.; Grimes, E.W.; Goldstein, J.; McComas, D.J.; Valek, P.; Billor, Nedret; 0000-0002-2318-8750; 0000-0001-6160-1158 (2022-10-25)
Global images of ion intensities are deconvolved from TWINS ENA images during the main and recovery phase of a CIR storm on 22 July 2009. The global spatial ion images taken at different times, along with solar wind data, ...

Evolution of low-altitude and ring current ENA emissions from a moderate magnetospheric storm: Continuous and simultaneous TWINS observations 

Valek, P.; Brandt, P. C.; Buzulukova, N.; Fok, M-C.; Goldstein, J.; McComas, D. J.; Perez, J. D.; Roelof, E.; Skoug, R. (2020-06-12)
The moderate storm of 22 July 2009 is the largest measured during the extended solar minimum between December 2006 and March 2010. We present observations of this storm made by the two wide-angle imaging neutral-atom ...

Experimental characterization of broadband electrostatic noise due to plasma compression 

DuBois, Ami M.; Thomas, Edward Jr.; Amatucci, William E.; Ganguli, Gurudas; 0000-0003-0947-8038; 0000-0002-7747-0284 (2020-06-05)
For a wide variety of laboratory and space plasma environments, theoretical predictions state that plasmas are unstable to inhomogeneous flows over a very broad frequency range. Such sheared flows are generated in the ...

Explaining the Railsback stretch in terms of the inharmonicity of piano tones and sensory dissonance 

Giordano, Nicholas J. (2015-10-26)
The perceptual results of Plomp and Levelt for the sensory dissonance of a pair of pure tones are used to estimate the dissonance of pairs of piano tones. By using the spectra of tones measured for a real piano, the effect ...

Externally driven plasmaspheric ULF waves observed by the Van Allen Probes 

Takashashi, Kazue; Min, Kyungguk; MacDowall, Robert; 0000-0002-2095-8529 (2020-06-05)
We analyze data acquired by the Van Allen Probes on 8 November 2012, during a period of extended low geomagnetic activity, to gain new insight into plasmaspheric ultralow frequency (ULF) waves. The waves exhibited strong ...