NCEI (formerly NGDC)
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Ionospheric Oblique Incidence Soundings by Satellites

browse graphicIonosonde station
The oblique incidence sweep-frequency ionospheric sounding technique uses the same principle of operation as the vertical incidence sounder. The primary difference is that the transmitter and receiver are located at different places so that the signal is reflected at an angle. The most common use of these sounders is to operationally investigate optimum conditions for radio propagation. According to Rawer (1969), no attempts are known to have been made to compute electron density versus height profiles from oblique incidence ionograms. These oblique incidence soundings do not adequately substitute for the vertical soundings. These data are static and receipt of new data is not anticipated.
Cite this dataset when used as a source.
Online Access
  • Online access is not available for this resource
Distribution Formats Format not available
    Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
    Dataset Point of Contact Redmon, Robert
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
    303-497-4331
    ionosonde@noaa.gov
    Documentation links not available.
    Date(s)
    • publication: 1958-01-01
    Edition: First
    Dataset Progress Status Complete
    Data Update Frequency: Not planned
    Purpose: Investigate optimum conditions for radio propagation
    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.
    Originator(s)
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Publisher(s)
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Time Period: 1957-01-15 to 1975-01-01
    Spatial Bounding Box Coordinates:
    N: 90.00
    S: -90.00
    E: 180.00
    W: -180.00
    Spatial Coverage Map:
    Theme keywords
    • EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Particle Density
    • Sweep Frequency
    • Oblique Incidence
    • Space Physics > Ionospheric Science
    Data Center keywords
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Place keywords
    • Global
    Project keywords
    • ICSU-WDS > International Council for Science - World Data System
    Use Constraints
    • Use Constraints: None
    Access Constraints
    • Access Constraints: No Constraints
    Fees
    • Dependent on amount of data requested
    Lineage information for: repository
    Processing Steps
    • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
    Last Modified: 2015-09-18
    For questions about the information on this page, please email: ionosonde@noaa.gov