Who publishes Ionograms - Digital?

National Centers for Environmental Information, part of National Oceanic and Atmospheric Administration, Department of Commerce, publishes this dataset on Data.gov.

How often is it updated?

The publisher does not list a schedule. The last update was on 01/01/2012.

How do I download it?

Use the official source link above to view or request the data.

Checked Oct 30, 2026

Federal dataMaps & Geospatial

Ionograms - Digital

Name: Ionograms - Digital
Creator: National Centers for Environmental Information
Published: 2012-01-01T00:00:00.000Z

Published by National Centers for Environmental Information · Updated 01/01/2012

Official source

Last updated: 01/01/2012; First published 01/01/2012
Update frequency: Not listed
Formats: Web only
Coverage: Nationwide; Federal data

About this dataset

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.

Maps & Geospatial

Files and access

Links open the official government source

GCMD Keyword Forum Pageforum.earthdata.nasa.govWeb page

Links open outside websites we do not control.

Frequently asked questions

Who publishes Ionograms - Digital?: National Centers for Environmental Information, part of National Oceanic and Atmospheric Administration, Department of Commerce, publishes this dataset on Data.gov.
How often is it updated?: The publisher does not list a schedule. The last update was on 01/01/2012.
How do I download it?: Use the official source link above to view or request the data.

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Catalog checked 10/24/2026

We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.

Source: Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher