Whistler measurements of electron density in the magnetosphere


  • D. L. Carpenter,

  • R. L. Smith


It is the purpose of this paper to discuss the whistler method of measuring electron density in the magnetosphere. Particular attention is devoted to certain questions that may have been perplexing to workers outside the whistler field. Profiles of equatorial electron density deduced from whistlers are compared and are found to be in general agreement. Whistler results on the ‘knee’ in the equatorial electron density profile and on values of electron density near 2 earth radii geocentric distance are found to agree with corresponding results obtained by independent methods of measurement.