What is solar wind turbulence?
In plasmas such as the solar wind, turbulence involves electric and magnetic fields as well as velocity fluctuations. • In some cases the basic building blocks of. turbulence are not eddies but plasma waves or wave packets.
What is magnetohydrodynamic wave?
Magnetohydrodynamic waves are a major source of variations in Earth’s magnetic field. These waves originate in the outer magnetic field and propagate along field lines to Earth’s surface. On reaching the surface they cause minute oscillations in the magnetic field (hence their…
What is magnetic turbulence?
Magnetohydrodynamic turbulence concerns the chaotic regimes of magnetofluid flow at high Reynolds number. Magnetohydrodynamics (MHD) deals with what is a quasi-neutral fluid with very high conductivity.
What is the effect of the solar wind on the magnetosphere quizlet?
Briefly describe how the solar wind affects magnetospheres and how aurora are produced. Some particles from the solar wind get trapped in the magnetosphere and can follow the magnetic field lines down to the planet’s surface.
What effect does the solar wind have on the earth magnetic field?
She explains in more detail how the solar wind disrupts our magnetosphere: “As the wind flows toward Earth, it carries with it the Sun’s magnetic field. It moves very fast, then smacks right into Earth’s magnetic field. The blow causes a shock to our magnetic protection, which can result in turbulence.”
What is the magnetohydrodynamic effect?
The Magnetohydrodynamic (MHD) Effect is a physical phenomenon describing the motion of a conducting fluid flowing under the influence of an external magnetic field.
What is magnetohydrodynamic plasma?
Magnetohydrodynamics (MHD; also called magneto-fluid dynamics or hydromagnetics) is the study of the magnetic properties and behaviour of electrically conducting fluids. Examples of such magnetofluids include plasmas, liquid metals, salt water, and electrolytes.
What is alfvenic turbulence?
The presence of alfvenic turbulence is well documented in astrophysical plasmas, the solar wind. AW spectrum believed to power the “turbulent Alfvenic aurora”. AW spectrum is claimed to exist inside current sheets (Earth’s neutral sheet). Alfven waves possess a parallel electric field, they are energetic.
What is MHD equation?
] = −∇P + j × B, (2) also called the Euler equation. The vector j is the electric current density which can be expressed through the magnetic field B.
What is the effect of the solar wind on the magnetosphere?
The Sun releases a stream of charged particles called the solar wind. On the Earth’s surface, we are protected from this barrage by the magnetosphere – a bubble created by the Earth’s magnetic field. When the solar wind hits the magnetosphere, waves of energy are transferred along the boundary between the two.
What causes solar wind quizlet?
Solar Wind comes from coronal holes on the sun and energetic particles that are primarily released by coronal mass ejections.
What are solar winds made of?
The solar wind is created by the outward expansion of plasma (a collection of charged particles) from the Sun’s corona (outermost atmosphere). This plasma is continually heated to the point that the Sun’s gravity can’t hold it down. It then travels along the Sun’s magnetic field lines that extend radially outward.