IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution

Details IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84..527g&link_type=abstract

Journal of Geophysical Research, vol. 84, Feb. 1, 1979, p. 527-532. Research supported by the National Research Council of Cana

Other

9

Amplitude Distribution Analysis, Angular Distribution, Data Correlation, Geomagnetic Micropulsations, Interplanetary Magnetic Fields, Solar Wind Velocity, Kelvin-Helmholtz Instability, Least Squares Method, Magnetopause, Signal Analysis, Solar Terrestrial Interactions

Scientific paper

Separate studies using the same micropulsation data base in the period range 10-150 s have shown earlier that signal levels recorded during September, October, and November 1969 at Calgary correlated positively with both solar-wind alignment of the IMF and solar-wind speed, but each correlation contained enough scatter to allow for the influence of the other factor. In this report, joint correlations of velocity and field direction with parameters representing hourly distributions rather than minima of IMF orientation angle display the relative effect of the two agents on magnetic pulsation signal levels. The joint correlations reduce the overall scatter and show that solar-wind speeds above 200-300 km/s and angles between the IMF and the sun-earth line of less than 50-60 deg are associated with enlarged magnetic pulsation amplitudes. These threshold effects tend to support both the bow-shock origin and the Kelvin-Helmholtz amplification of daytime signal transients in the Pc 3, 4 period ranges.

Affiliated with

Also associated with

No associations

Rating

IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IMF orientation, solar wind velocity, and Pc 3-4 signals - A joint distribution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-830301