The Kelvin-Helmholtz instability under Parker-Spiral Interplanetary Magnetic Field conditions at the magnetospheric flanks

被引：15

作者：

Adamson, E. ^{[1
]}

Nykyri, K. ^{[1
]}

Otto, A. ^{[2
]}

机构：

[1] Embry Riddle Aeronaut Univ, 600 S Clyde Morris Blvd, Daytona Beach, FL 32114 USA

[2] Univ Alaska Fairbanks, Inst Geophys, 903 Koyukuk Dr, Fairbanks, AK 99775 USA

来源：

ADVANCES IN SPACE RESEARCH | 2016年 / 58卷 / 02期

基金：

美国国家科学基金会;

关键词：

Kelvin-Helmholtz instability; Magnetopause; Plasma sheet asymmetry; 3D MHD simulations; Plasma waves and instabilities; Plasma transport; INTERACTION OFMAGNETIC RECONNECTION; KINETIC ALFVEN WAVES; PLASMA TRANSPORT; SOLAR-WIND; MAGNETOTAIL BOUNDARY; GEOTAIL OBSERVATIONS; MAGNETOPAUSE; SIMULATION; SHEAR; SIGNATURES;

D O I：

10.1016/j.asr.2015.09.013

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We have generated fully three-dimensional, high-resolution magnetohydrodynamic (MHD) simulations of the Kelvin-Helmholtz (KH) Instability during Parker-Spiral Interplanetary Magnetic Field (IMF) conditions at the dawnside magnetospheric flank magnetopause. Results of these simulations show that, although the draping of a strong tangential magnetic field component around the magnetopause, tailward of the terminator (due to the Parker-Spiral orientation), tends to stabilize the growth of such instabilities within the shear-flow plane, Kelvin-Helmholtz waves with a k-vector tilted out of this plane may, nonetheless, develop into the nonlinear phase. This result suggests that obliquely propagating KH waves may contribute to the dawn-dusk asymmetries observed in plasma sheet parameters. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：218 / 230

页数：13

共 67 条

[21] Transport of solar wind into Earth's magnetosphere through rolled-up Kelvin-Helmholtz vortices [J].

Hasegawa, H ;

Fujimoto, M ;

Phan, TD ;

Rème, H ;

Balogh, A ;

Dunlop, MW ;

Hashimoto, C ;

TanDokoro, R .

NATURE, 2004, 430 (7001) :755-758

[22] Kelvin-Helmholtz instability in an unstable layer of finite-thickness [J].

Hashimoto, C. ;

Fujimoto, M. .

BOUNDARY LAYERS, WAVES AND NON-LINEAR DYNAMICAL PROCESSES, 2006, 37 (03) :527-531

[23] The Kelvin-Helmholtz instability: Finite Larmor radius magnetohydrodynamics [J].

Huba, JD .

GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (21) :2907-2910

[24] HALL DYNAMICS OF THE KELVIN-HELMHOLTZ INSTABILITY [J].

HUBA, JD .

PHYSICAL REVIEW LETTERS, 1994, 72 (13) :2033-2036

[25] Kelvin-Helmholtz waves under southward interplanetary magnetic field [J].

Hwang, K. -J. ;

Kuznetsova, M. M. ;

Sahraoui, F. ;

Goldstein, M. L. ;

Lee, E. ;

Parks, G. K. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2011, 116

[26] Kelvin Helmholtz Instability in Planetary Magnetospheres [J].

Johnson, Jay R. ;

Wing, Simon ;

Delamere, Peter A. .

SPACE SCIENCE REVIEWS, 2014, 184 (1-4) :1-31

[27] Kinetic Alfven waves and plasma transport at the magnetopause [J].

Johnson, JR ;

Cheng, CZ .

GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (11) :1423-1426

[28] Signatures of mode conversion and kinetic Alfven waves at the magnetopause [J].

Johnson, JR ;

Cheng, CZ ;

Song, P .

GEOPHYSICAL RESEARCH LETTERS, 2001, 28 (02) :227-230

[29] Ubiquity of Kelvin-Helmholtz waves at Earth's magnetopause [J].

Kavosi, Shiva ;

Raeder, Joachim .

NATURE COMMUNICATIONS, 2015, 6

[30] A two-dimensional simulation of the Kelvin-Helmholtz instability with magnetic shear [J].

Keller, KA ;

Lysak, RL .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1999, 104 (A11) :25097-25103

← 1 2 3 4 5 6 7 →