Magnetohydrodynamic Modelling Of Interplanetary Disturbances Between The Sun And Earth

Author : Murray Dryer
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.45/5 ( download)

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Download or read book Magnetohydrodynamic Modelling of Interplanetary Disturbances Between the Sun and Earth written by Murray Dryer and published by . This book was released on 1982 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A time-dependent, nonplanar, two-dimensional (2-D) magnetohydrodynamic computer simulation model is used to simulate a series of solar flare-generated shock waves and their subsequent disturbances in interplanetary space between the sun and the earth's magnetosphere. The canonical or anzatz series of shock waves include initial velocities near the sun over the range 500 to 3000 km/sec. The ambient solar wind, through which the shocks propagate, is taken to be a steady-state flow that is independent of heliolongitude; its radial dependency consists of a representative set of plasma and magnetic field parameters which will be presented. Particular attention is directed to the MHD model's ability to address fundamental operational questions regarding the long-range forecasting of geomagnetic disturbances. These questions are: (1) will a disturbance (such as the present canonical series of solar flare shock waves) produce a magnetospheric and ionospheric disturbance, and, if so; (2) when wil it start; (3) how severe will it be; and (4) how long will it last? The model's output is used to compute various solar wind indices of current interest for this purpose. It is concluded that future work should be focused on a cohesive updating of, for example, daily measured solar parameters as input for the model whose output should be compared with spacecraft data for specific events.

Author : Murray Dryer
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.59/5 ( download)

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Download or read book Magnetohydrodynamic Modelling of Interplanetary Disturbances Between the Sun and Earth written by Murray Dryer and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A time-dependent, nonplanar, two-dimensional (2-D) magnetohydrodynamic computer simulation model is used to simulate a series of solar flare-generated shock waves and their subsequent disturbances in interplanetary space between the sun and the earth's magnetosphere. The canonical or anzatz series of shock waves include initial velocities near the sun over the range 500 to 3000 km/sec. The ambient solar wind, through which the shocks propagate, is taken to be a steady-state flow that is independent of heliolongitude; its radial dependency consists of a representative set of plasma and magnetic field parameters which will be presented. Particular attention is directed to the MHD model's ability to address fundamental operational questions regarding the long-range forecasting of geomagnetic disturbances. These questions are: (1) will a disturbance (such as the present canonical series of solar flare shock waves) produce a magnetospheric and ionospheric disturbance, and, if so; (2) when wil it start; (3) how severe will it be; and (4) how long will it last? The model's output is used to compute various solar wind indices of current interest for this purpose. It is concluded that future work should be focused on a cohesive updating of, for example, daily measured solar parameters as input for the model whose output should be compared with spacecraft data for specific events.

Author : L. F. Burlaga
Publisher : Oxford University Press
ISBN 13 : 0195359143
Total Pages : 267 pages
Book Rating : 4.45/5 ( download)

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Download or read book Interplanetary Magnetohydrodynamics written by L. F. Burlaga and published by Oxford University Press. This book was released on 1995-07-06 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft such as the Pioneer, Vela, and Voyager have explored the interplanetary medium between the orbits of Mercury and Pluto. The insights derived from these missions have been successfully applied to magnetospheric, astro-solar, and cosmic ray physics. This book is an overview of these insights, using magnetohydrodynamic (MHD) flows as the framework for interpreting objects and processes observed in the interplanetary medium. Topics include various types of MHD shocks and interactions among them, tangential and rotational discontinuities, force-free field configurations, the formation of merged interaction regions associated with various types of flows, the destruction of flows, the growth of the Kelvin-Helmholtz instability and formation of a heliospheric vortex street, the development of multifractal fluctuations on various scales, and the evolution of multifractal intermittent turbulence. Students and researchers in astrophysics will value the data from these missions, which provide confirmation of many theoretical models of the interstellar medium.

Author : Jie Zhang
Publisher : Springer
ISBN 13 : 9789402415698
Total Pages : 744 pages
Book Rating : 4.96/5 ( download)

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Download or read book Earth-affecting Solar Transients written by Jie Zhang and published by Springer. This book was released on 2018-10-27 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth-affecting solar transients encompass a broad range of phenomena, including major solar flares, CMEs, ICMEs, solar energetic particle events, and corotating interaction regions.​ In the past decade, nearly continuous observations of the Sun and the inner heliosphere with an unprecedented wide spatial coverage from a fleet of spacecraft, including STEREO Ahead/Behind, SDO, SOHO, Messenger, Venus Express, ACE and WIND, in combination with a significant advancement of global MHD numerical simulation and theoretical analysis, have greatly improved our understanding of solar transients and the prediction of their potential impact on Earth. This Topical Collection is based on the International Study of Earth-affecting Solar Transients (ISEST) project, initially launched in 2013 to bring together scientists from many countries to join efforts on studying solar transients. ISEST became one of the four research projects of the Variability of the Sun and Its Terrestrial Impact (VarSITI) program, sponsored by the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) for the period of 2014 – 2018. Originally published in the journal Solar Physics, volumes 292 (2017) and 293 (2018).

Author :
Publisher :
ISBN 13 :
Total Pages : 562 pages
Book Rating : 4.7U/5 ( download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : S. Böhme
Publisher : Springer Science & Business Media
ISBN 13 : 3662123460
Total Pages : 928 pages
Book Rating : 4.61/5 ( download)

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Download or read book Literature 1984, Part 2 written by S. Böhme and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Environmental Research Laboratories (U.S.)
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.1M/5 ( download)

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Download or read book Environmental Research Laboratories Publication Abstracts written by Environmental Research Laboratories (U.S.) and published by . This book was released on 1983 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Environmental Research Laboratories (U.S.)
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.00/5 ( download)

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Download or read book Publications Abstracts written by Environmental Research Laboratories (U.S.) and published by . This book was released on 1994 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.13/5 ( download)

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Download or read book SKYLAB, 1973-1974 written by and published by . This book was released on 1985 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Vladimir Evgenʹevich Stepanov
Publisher : VSP
ISBN 13 : 9789067640657
Total Pages : 470 pages
Book Rating : 4.54/5 ( download)

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Download or read book Solar Maximum Analysis written by Vladimir Evgenʹevich Stepanov and published by VSP. This book was released on 1987-12 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings contain the review and contributed papers given at the SMY--SMA Workshop held in Irkutsk (USSR), 17--24 June 1985. The main themes of the Workshop were plasma physics and magnetohydrodynamics with applications to processes occurring in solar flares. The papers published in this volume are organized around the following topics: -- the reconnection of coronal magnetic fields as a source of flare energy -- the acceleration of particles to high energies -- the dynamics of interplanetary clouds and shocks