Computer Science – Sound
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..349z&link_type=abstract
Geophysical Research Letters, vol. 9, Apr. 1982, p. 349-352. NSF-Navy-NASA-supported research.
Computer Science
Sound
10
Birkeland Currents, Geomagnetism, Ionospheric Currents, Magnetic Signatures, Satellite Sounding, Field Aligned Currents, Histograms, Kp Index, Magsat Satellites, Temporal Distribution
Scientific paper
Transverse magnetic disturbances associated with Birkeland currents have been measured by the Magsat and TRIAD spacecraft, whose orbits were nearly coplanar from November to mid-December, 1979. A comparison of data received when the satellites were over the TRIAD/Chatanika receiving station shows that 75% of magnetic disturbance measurements are similar in shape and magnitude, with TRIAD peak disturbances being on average 7% larger than those of Magsat. This discrepancy is lower than measurement uncertainties due to baselines and calibration. During periods of higher Kp, despite time separations of as much as 45 min, better agreement is found in the large-scale and well-defined field-aligned current signatures.
Potemra Thomas A.
Zanetti Laurence J.
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