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Detailed Reference Information |
Reinisch, B.W., Huang, X., Song, P., Sales, G.S., Fung, S.F., Green, J.L., Gallagher, D.L. and Vasyliunas, V.M. (2001). Plasma density distribution along the magnetospheric field: RPI observations from IMAGE. Geophysical Research Letters 28: doi: 10.1029/2001GL013684. issn: 0094-8276. |
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A new technique is introduced that remotely measures the plasma density profile in the plasmasphere. Radio plasma imager (RPI) echo observations provide echo delay time as function of frequency, from which the plasma density as function of position along the magnetic field line can be calculated. An example from the nightside plasmasphere (L=3) shows the density having its minimum value near the equator and rapidly increasing densities along the field line above 40¿ magnetic latitude. The density increases at a faster rate toward the ionosphere than the field strength. The index of the power law of the density as a function of field strength increases from a few tenths near the equator to close to unity near 40¿ and greater than 2 near the ionosphere. ¿ 2001 American Geophysical Union |
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Abstract |
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Keywords
Magnetospheric Physics, Magnetosphere—inner, Magnetospheric Physics, Plasmasphere, Magnetospheric Physics, Plasma waves and instabilities, Magnetospheric Physics, Instruments and techniques |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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