نتایج جستجو برای: solar wind

تعداد نتایج: 191927  

2005
Bo Li Shadia Rifai Habbal Xing Li

The effect of solar rotation on the proton-alpha differential flow speed, vαp, and consequently on the angular momentum transport in the solar wind, is explored. Using a 3-fluid model, it is found that the radial component of the momentum equation for ions is modified by the force introduced by the azimuthal components. This force plays an important role in the force balance in interplanetary s...

2002
K.-H. Kim C. A. Cattell D.-H. Lee K. Takahashi K. Yumoto K. Shiokawa F. S. Mozer M. Andre

[1] On April 13 (day 103), 2001, 0700–1400 UT, the Polar satellite experienced different plasma regimes (i.e., magnetosphere, magnetosheath, and solar wind) because of the solar wind dynamic pressure variations and its high orbital inclination near the subsolar magnetopause meridian. When Polar was in the magnetosheath, quasiperiodic spacecraft potential (SP) variations, corresponding to densit...

2009
L. F. Burlaga N. F. Ness M. H. Acuña J. D. Richardson E. Stone F. B. McDonald

This paper describes the principal features of 24 hr averages of the magnetic field strength variations B(t) and their relationships to the plasma and energetic particles observed prior to and after the crossing of the termination shock (TS) by Voyager 2 (V2). The solar wind (pre-TS crossing) and heliosheath (post-TS crossing) data extend from day of year (DOY) 1 through 241, 2007 and from 2007...

2009
A. Verdini

We study the formation and evolution of a turbulent spectrum of Alfvén waves driven by reflection off the solar wind density gradients, starting from the coronal base up to 17 solar radii, well beyond the Alfvénic critical point. The background solar wind is assigned and 2D shell models are used to describe nonlinear interactions. We find that the turbulent spectra are influenced by the nature ...

2004
Miller Mendoza John Morales

Using a simple model we analyze qualitatively the deformation that terrestrial magnetic field suffers due to the presence of the solar wind; we also studied the electrical currents generated into the solar wind due to the presence of Earth's

2013
Seth Blumsack Kelsey Richardson

We assess the implications on long-run average energy production costs and emissions of CO2 and some criteria pollutants from coupling wind, solar and natural gas generation sources. We utilize five-minute meteorological data from a US location that has been estimated to have both high-quality wind and solar resources, to simulate production of a coupled generation system that produces a consta...

2007
A. T. Y. LUI

The early time interaction of an artificially injected lithium cloud with the solar wind is simulated with a one-dimensional hybrid code. Simulation results indicate that the lithium cloud presents an obstacle to the solar wind flow, forming a shock-like interaction region. Several notable features are found: (1) The magnetic field is enhanced up to a factor of about 6, followed by a magnetic c...

2006
J. M. Weygand M. G. Kivelson K. K. Khurana H. K. Schwarzl R. J. Walker A. Balogh L. M. Kistler M. L. Goldstein

[1] Solar wind magnetometer and plasma data and magnetometer data acquired by Cluster in the magnetospheric plasma sheet are employed to construct probability distribution functions (PDFs) of magnetic field fluctuations over various temporal and spatial scales. This technique, often used in analysis of laboratory plasmas, is used to look for intermittent plasma turbulence and non-self-similar p...

2015

The use of hydroelectric pump-storage system at large scale, MW-size systems, is already widespread around the world. Designed for large scale applications, pump-storage station can be scaled-down for small, remote residential applications. Given the cost and complexity associated with installing a substation further than 100 miles from the main transmission lines, a remote, independent and sel...

2007
M. Neugebauer E. J. Smith A. Ruzmaikin A. H. Vaughan

Direct measurements of the solar wind speed and the radial component of the interplanetary magnetic field acquired over more than three solar cycles are used to search for signatures of a persistent dependence of solar wind properties on olar longitude. Two methods of analysis are used. One finds the rotation period that maximizes theamplitude of longitudinal variations of both interplanetary a...

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