![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
Open AccessAutomatic selection of Dst storms and their seasonal variations in two versions of Dst in 50 years
A computer program is developed to automatically identify the geomagnetic storms in Dst index by applying four selection criteria that minimize non-storm-like fluctuations. The program is used to identify the ...
-
Article
Open AccessIntroduction to the special issue on history development of solar terrestrial sciences including auroral sub-storms
Solar terrestrial (ST) sciences started centuries ago and branched into different disciplines. Starting with naked eye to highly sophisticated novel experimental techniques, observations have revealed the secr...
-
Article
Open AccessThe importance of ground magnetic data in specifying the state of magnetosphere–ionosphere coupling: a personal view
In the history of geomagnetism, geoelectricity and space science including solar terrestrial physics, ground magnetic records have been demonstrated to be a powerful tool for monitoring the levels of overall g...
-
Article
Map** of ionospheric parameters for space weather predictions: A concise review
Reviewing briefly the recent progress in a joint program of specifying the polar ionosphere primarily on the basis of ground magnetometer data, this paper emphasizes the importance of processing data from arou...
-
Book
-
Article
Auroral electrojet oval
The auroral electrojet is enhanced in the polar ionosphere associated with charged particle precipitation and field-aligned currents during substorms. In this paper the geometry of the elctrojet is determined ...
-
Article
Real-Time Specifications of the Geospace Environment
We report the recent progress in our joint program of real-time map** of ionospheric electric fields and currents and field-aligned currents through the Geospace Environment Data Analysis System (GEDAS) at t...
-
Chapter
The Study of the Mechanism of Cell Elongation Using an Inhibitor of 3-Hydroxy-3-Methylglutaryl-CoA Reductase
We are investigating the role of 3-hydroxy-3-methylglutaryl-CoA reductase on the development of plant body by using the HMGR-inhibitor, lovastatin. Then, it was shown that lovastatin inhibits cell elongation of A...
-
Chapter
Real-Time Specifications of the Geospace Environment
We report the recent progress in our joint program of real-time map** of ionospheric electric fields and currents and field-aligned currents through the Geospace Environment Data Analysis System (GEDAS) at t...
-
Article
Tamas I. Gombosi, Physics of the Space Environment
-
Article
The size of the auroral belt during magnetic storms
Using the auroral boundary index derived from DMSP electron precipitation data and the Dst index, changes in the size of the auroral belt during magnetic storms are studied. It is found that the equatorward bound...
-
Article
The convection electrojet and the substorm electrojet
Enhancements in the auroral electrojets associated with magnetospheric substorms result from those in either the electric field or the ionospheric conductivities, or both. Their relative importance varies sign...
-
Article
The roles of direct input of energy from the solar wind and unloading of stored magnetotail energy in driving magnetospheric substorms
This paper presents the consensus arrived at by the authors with respect to the contributions to the substorm expansive phase of direct energy input from the solar wind and from energy stored in the magnetotai...
-
Article
The relationship between field-aligned currents and the auroral electrojets: A review
The recent development of several new observational techniques as well as of advanced computer simulation codes has contributed significantly to our understanding of dynamics of the three-dimensional current s...
-
Chapter and Conference Paper
Relationship Between Substorms and Storms
In an attempt to deduce a plausible working model of the relationship between magnetospheric substorms and storms, recent relevant studies of various processes occurring during disturbed periods are integrated...