FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1977003789> ?p ?o ?g. }

• W1977003789 endingPage "17728" @default.
• W1977003789 startingPage "17705" @default.
• W1977003789 abstract "This paper attempts to summarize the current understanding of the storm/substorm relationship by clearing up a considerable amount of controversy and by addressing the question of how solar wind energy is deposited into and is dissipated in the constituent elements that are critical to magnetospheric and ionospheric processes during magnetic storms. (1) Four mechanisms are identified and discussed as the primary causes of enhanced electric fields in the interplanetary medium responsible for geomagnetic storms. It is pointed out that in reality, these four mechanisms, which are not mutually exclusive, but interdependent, interact differently from event to event. Interplanetary coronal mass ejections (ICMEs) and corotating interaction regions (CIRs) are found to be the primary phenomena responsible for the main phase of geomagnetic storms. The other two mechanisms, i.e., HILDCAA (high-intensity, long-duration, continuous auroral electrojet activity) and the so-called Russell-McPherron effect, work to make the ICME and CIR phenomena more geoeffective. The solar cycle dependence of the various sources in creating magnetic storms has yet to be quantitatively understood. (2) A serious controversy exists as to whether the successive occurrence of intense substorms plays a direct role in the energization of ring current particles or whether the enhanced electric field associated with southward IMF enhances the effect of substorm expansions. While most of the Dst variance during magnetic storms can be solely reproduced by changes in the large-scale electric field in the solar wind and the residuals are uncorrelated with substorms, recent satellite observations of the ring current constituents during the main phase of magnetic storms show the importance of ionospheric ions. This implies that ionospheric ions, which are associated with the frequent occurrence of intense substorms, are accelerated upward along magnetic field lines, contributing to the energy density of the storm-time ring current. An apparently new controversy regarding the relative importance of the two processes is thus created. It is important to identify the role of substorm occurrence in the large-scale enhancement of magnetospheric convection driven by solar wind electric fields. (3) Numerical schemes for predicting geomagnetic activity indices on the basis of solar/solar wind/interplanetary magnetic field parameters continue to be upgraded, ensuring reliable techniques for forecasting magnetic storms under real-time conditions. There is a need to evaluate the prediction capability of geomagnetic indices on the basis of physical processes that occur during storm time substorms. (4) It is crucial to differentiate between storms and nonstorm time substorms in terms of energy transfer/conversion processes, i.e., mechanical energy from the solar wind, electromagnetic energy in the magnetotail, and again, mechanical energy of particles in the plasma sheet, ring current, and aurora. To help answer the question of the role of substorms in energizing ring current particles, it is crucial to find efficient magnetospheric processes that heat ions up to some minimal energies so that they can have an effect on the strength of the storm time ring current. (5) The question of whether the Dst index is an accurate and effective measure of the storm time ring current is also controversial. In particular, it is demonstrated that the dipolarization effect associated with substorm expansion acts to reduce the Dst magnitude, even though the ring current may still be growing." @default.
• W1977003789 created "2016-06-24" @default.
• W1977003789 creator A5009445822 @default.
• W1977003789 creator A5010310655 @default.
• W1977003789 creator A5030693153 @default.
• W1977003789 creator A5032267808 @default.
• W1977003789 creator A5034922716 @default.
• W1977003789 creator A5038979416 @default.
• W1977003789 creator A5056464219 @default.
• W1977003789 creator A5056770192 @default.
• W1977003789 creator A5058461397 @default.
• W1977003789 creator A5066105880 @default.
• W1977003789 creator A5067053161 @default.
• W1977003789 creator A5070639192 @default.
• W1977003789 creator A5086012026 @default.
• W1977003789 creator A5088294307 @default.
• W1977003789 date "1998-08-01" @default.
• W1977003789 modified "2023-10-16" @default.
• W1977003789 title "Current understanding of magnetic storms: Storm-substorm relationships" @default.
• W1977003789 cites W1483786171 @default.
• W1977003789 cites W1531947761 @default.
• W1977003789 cites W1548849519 @default.
• W1977003789 cites W1561862821 @default.
• W1977003789 cites W1562182058 @default.
• W1977003789 cites W1607771235 @default.
• W1977003789 cites W1608826024 @default.
• W1977003789 cites W1635718552 @default.
• W1977003789 cites W1641602733 @default.
• W1977003789 cites W1658241947 @default.
• W1977003789 cites W1966058123 @default.
• W1977003789 cites W1966096191 @default.
• W1977003789 cites W1968032464 @default.
• W1977003789 cites W1970488982 @default.
• W1977003789 cites W1970593994 @default.
• W1977003789 cites W1971614771 @default.
• W1977003789 cites W1973140623 @default.
• W1977003789 cites W1976049906 @default.
• W1977003789 cites W1977065614 @default.
• W1977003789 cites W1977515458 @default.
• W1977003789 cites W1979606638 @default.
• W1977003789 cites W1980260426 @default.
• W1977003789 cites W1981466109 @default.
• W1977003789 cites W1982208062 @default.
• W1977003789 cites W1982922097 @default.
• W1977003789 cites W1983614816 @default.
• W1977003789 cites W1984145012 @default.
• W1977003789 cites W1984391316 @default.
• W1977003789 cites W1985152902 @default.
• W1977003789 cites W1985561519 @default.
• W1977003789 cites W1985669143 @default.
• W1977003789 cites W1986020464 @default.
• W1977003789 cites W1986396546 @default.
• W1977003789 cites W1987948562 @default.
• W1977003789 cites W1988359122 @default.
• W1977003789 cites W1992601221 @default.
• W1977003789 cites W1994526422 @default.
• W1977003789 cites W1997788578 @default.
• W1977003789 cites W1998983070 @default.
• W1977003789 cites W2009979869 @default.
• W1977003789 cites W2013104913 @default.
• W1977003789 cites W2014355411 @default.
• W1977003789 cites W2016857536 @default.
• W1977003789 cites W2018131539 @default.
• W1977003789 cites W2018235740 @default.
• W1977003789 cites W2018586496 @default.
• W1977003789 cites W2021249283 @default.
• W1977003789 cites W2025815993 @default.
• W1977003789 cites W2026220609 @default.
• W1977003789 cites W2026627420 @default.
• W1977003789 cites W2030877989 @default.
• W1977003789 cites W2031080000 @default.
• W1977003789 cites W2031234385 @default.
• W1977003789 cites W2031254335 @default.
• W1977003789 cites W2032650292 @default.
• W1977003789 cites W2033514500 @default.
• W1977003789 cites W2034099719 @default.
• W1977003789 cites W2035355174 @default.
• W1977003789 cites W2036197762 @default.
• W1977003789 cites W2037812478 @default.
• W1977003789 cites W2037870408 @default.
• W1977003789 cites W2038100229 @default.
• W1977003789 cites W2041655351 @default.
• W1977003789 cites W2041680146 @default.
• W1977003789 cites W2042199890 @default.
• W1977003789 cites W2043677973 @default.
• W1977003789 cites W2045028191 @default.
• W1977003789 cites W2046189229 @default.
• W1977003789 cites W2049115323 @default.
• W1977003789 cites W2049585763 @default.
• W1977003789 cites W2050088418 @default.
• W1977003789 cites W2050184575 @default.
• W1977003789 cites W2062630760 @default.
• W1977003789 cites W2062762746 @default.
• W1977003789 cites W2063064097 @default.
• W1977003789 cites W2064467028 @default.
• W1977003789 cites W2068003790 @default.
• W1977003789 cites W2068593058 @default.
• W1977003789 cites W2070728204 @default.

• next