Ionograms - Analog

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 18, 2025 | Last Modified: 2012-01-01T00:00:00.000+00:00

Ionograms are recorded tracings of reflected high frequency radio pulses generated by an ionosonde. Unique relationships exist between the sounding frequency and the ionization densities which can reflect it. As the sounder sweeps from lower to higher frequencies, the signal rises above the noise of commercial radio sources and records the return signal reflected from the different layers of the ionosphere.

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Space Physics, Ionosphere, Atmosphere, Indices, Communications, Remote Sensing 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

Complete Metadata

describedByType	application/octet-steam
identifier	gov.noaa.ngdc.stp.ionosonde:3088
issued	2012-01-01T00:00:00.000+00:00
language	[]
rights	otherRestrictions
spatial	180.0,-90.0,-180.0,90.0
temporal	1920-01-01T00:00:00+00:00/2012-01-01T00:00:00+00:00

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