Results 161 to 170 of about 619,372 (203)
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Reviews of Geophysics, 1972
The purpose of this review is to outline the definition and method of derivation of the indices of geomagnetic activity that are most commonly used at present. The first part of the review presents the methods of derivation of Kp, ap, AE, and Dst; the second part involves a discussion of the strengths and weaknesses of each index.
exaly +2 more sources
The purpose of this review is to outline the definition and method of derivation of the indices of geomagnetic activity that are most commonly used at present. The first part of the review presents the methods of derivation of Kp, ap, AE, and Dst; the second part involves a discussion of the strengths and weaknesses of each index.
exaly +2 more sources
The K‐derived MLT sector geomagnetic indices
Geophysical Research Letters, 2013 International audienceNew subauroral K-derived sector indices are proposed. They are based on the K local geomagnetic activity indices from the planetary am network stations, and their derivation scheme draws directly from that of am indices.
Aude Chambodut, Aurélie Marchaudon
exaly +2 more sources
1996
The predominant part of the geomagnetic field, as observed at the Earth’s surface, originates from sources in the Earth’s core and, to a lesser degree, in the Earth’s crust. Spatial distribution and secular variation of this internal part were described, e.g., by Schmucker (1985).
Walter Dieminger +2 more
openaire +1 more source
The predominant part of the geomagnetic field, as observed at the Earth’s surface, originates from sources in the Earth’s core and, to a lesser degree, in the Earth’s crust. Spatial distribution and secular variation of this internal part were described, e.g., by Schmucker (1985).
Walter Dieminger +2 more
openaire +1 more source
Indices of geomagnetic pulsations
Planetary and Space Science, 1972Abstract A system of spectral and energetic indices based on pulsations is proposed (taking into account the achievements of hydromagnetic diagnostics). The principle of the proposed system is to ascribe to each index a clear physical meaning.
V.A. Troitskaya +4 more
openaire +1 more source
Indices of geomagnetic activity
Journal of Atmospheric and Terrestrial Physics, 1968+5 more sources
Indices of geomagnetic activity
Journal of Atmospheric and Terrestrial Physics, 1975+4 more sources
Indices of geomagnetic activity
Journal of Atmospheric and Terrestrial Physics, 1973+4 more sources
Indices of geomagnetic activity
Journal of Atmospheric and Terrestrial Physics, 1971+5 more sources