Results 191 to 200 of about 1,927 (242)

Interplanetary disturbances associated with geomagnetic disturbances and their solar sources

, 1999
openaire   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Geomagnetic Disturbance and the Troposphere

Nature, 1969
THERE have been many searches for a possible influence of solar or magnetic disturbance on the troposphere, either for a direct effect or for one operating indirectly through propagation downwards from the upper to the lower atmosphere. Due to the many complex and variable factors involved, it has not proved easy to establish any clear-cut evidence for
W. J. G. BEYNON, E. H. WINSTANLEY
openaire   +1 more source

Aurora and Geomagnetic Disturbance

Nature, 1939
IN the course of analysis of simultaneous auroral and geomagnetic events at Fort Rae, North West Canada, during the Second International Polar Year, a feature has emerged about which we consider it advisable to make a preliminary report. If the elevation above the horizon of an auroral arc be φ, and if θ be the elevation of a concentrated linear ...
J. M. STAGG, J. PATON
openaire   +1 more source

GEOMAGNETICALLY INDUCED CURRENTS CALCULATION DURING GEOMAGNETIC DISTURBANCES

POWER ENGINEERING: economics, technique, ecology, 2016
A new method is presented to calculate geo-electric field using uniform Earth structure model for defining surface potential between grounded neutral of grid power transformers. It was calculated geo-electric field applying direct and inverse Fourier transform and calculated a surface impedance as a function of frequency of magnetic field oscillation ...
Kyryk, Valerii Valentynovych, Nahornyi, Roman Vladyslavovych   +1 more
openaire   +2 more sources

The Disturbances of the Solar-Geomagnetic Activity

2006 12th International Power Electronics and Motion Control Conference, 2006
Storm of October 2003 and November 2004 belongs to the second maximum in the 23rd solar sunspot's cycle. Spectacular solar-geophysical processes were registered in the geospace from 21 to 31 October 2003. During 03-10, November 2004, the largest flare were accompanied by halo CMEs emission and the super active sunspot groups dominated in the solar ...
Spomenko J. Mihajlovic, Caslav Lazovc
openaire   +1 more source

The solar causes of geomagnetic disturbances

Solar Physics, 1985
Geomagnetic disturbances have been identified with respect to their sources for 1977–1983. The disturbance level was found using the daily planetary index Ap. High-amplitude (∼ 50), mean-amplitude (∼24) and low-amplitude (∼ 12) disturbances are caused by solar flares of importance ≥ 1, coronal holes, and filament cavities, respectively.
V. P. Mikhailutsa, M. N. Gnevyshev
openaire   +1 more source

Variation of geomagnetic disturbance with latitude

Journal of Geophysical Research, 1969
Average geomagnetic storm ranges as function of latitude, noting disturbances caused by ring and ionospheric ...
Kenneth Moe, Dean Nebergall
openaire   +1 more source

On Transformation of Energy of Geomagnetic Disturbances

Izvestiya, Physics of the Solid Earth, 2019
Abstract—A mechanism responsible for the transformation of energy of geomagnetic disturbances into the energy of chemically active products is proposed. According to this mechanism, this transformation is implemented by electrolysis at the interfaces between the media with a different type of conduction under the passing of telluric currents induced by
V. V. Gorokhov, V. I. Karelin, V. D. Selemir   +2 more
openaire   +1 more source

On ionospheric disturbances in relation to geomagnetic disturbances

Geofisica pura e applicata, 1958
Disturbances in the critical frequency of theF2-region of the ionosphere at Watheroo on international magnetically disturbed days are analyzed together with simultaneous geomagnetic data at the same station. The results show that the daily average disturbanceDm (foF2) becomes negative or positive according as the maximum of the disturbance daily ...
openaire   +1 more source

Influence of sunspots on geomagnetic disturbance

Journal of Geophysical Research, 1961
The hypothesis that the ejection of solar corpuscles is influenced by interactions of ‘active region’ magnetic fields is tested empirically. The results do not support the hypothesis.
Fred Ward, Ralph Shapiro
openaire   +1 more source