Calculations of the Total Number of Electrons Along a Ray Path Extending from the Transmitter to the Receiver

Ionospheric Total Electron Content (TEC) is the total number of electrons in a column of unit cross section extending from the transmitter to the receiver. TEC is calculated from observations of the rotation of a polarized signal (faraday rotations) transmitted from the satellite. There are several specific techniques for obtaining TEC by using Faraday rotation. Estimates of accuracy for these data range from 2 percent to 30 percent, depending on the technique and the validity of assumptions for the particular observational conditions. These data consist of publications or computer printouts. Listed below are the available stations. The dates may not be inclusive. Ahmedabad 196411-196712 Bangkok 196411-196612 Delhi 196410-196612 (Explorer 22) Report 32 196410-196512 Report 33 196601-196612 Report 66 196506-196709 (Explorer 27) Lunping 197703-198312 (Some of these data are available in digital form.) Hamilton, Mass. 196801-196812 (Medians only.) Hamilton, Mass. 196711-197212 Hawaii 196409-197312 (only plots) Haifa (Israel) 198103-198303 Fort Monmouth 198302-198303 Florence(Italy) 196401-196606 Puerto Rico 197601-197603 San Jose 196412-196512 Dos Campos Slough 197511-197607 Tucuman 197606-197610 Urbana, Ill. 196712-197012 Val-Joyeux 196505-196712 (Solar times used. Area is from 40-52N and 7E-3W.)
Distribution Formats
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Distributor Distributor information not available
Dataset No POCs available for this dataset
Time Period 1964-10-01 to 1983-12-31
Spatial Bounding Box Coordinates
N: 90.000000
S: -90.000000
E: 180.000000
W: -180.000000
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 1965-01-01
Edition First
Dataset Progress Status Under development - data is currently in the process of being created
Data Update Frequency Monthly
Purpose Transmitter/Receiver Path Research
Use Limitations
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Particle Density
Uncontrolled Keywords
  • Space Physics > Ionospheric Science
  • Total Electron Content
  • TEC
  • Faraday Rotations
Place keywords NASA/GCMD Location Keywords
  • Global
      Use Constraints
      • Use Constraints: None
      Access Constraints
      • Access Constraints: No Constraints
      • None
      Last Modified: 2015-09-18
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