Geomagnetic Absolute Mean Values at Hourly Intervals from 220 Observatories Worldwide

Metadata Updated: May 29, 2014

This file is comprised of absolute mean hourly values of the geomagnetic components D, H and Z or X, Y and Z. These values, on magnetic tape, are available from approximately 220 of the 400 worldwide observatories which have ever operated. Most of the values were hand-scaled from the analog recordings (magnetograms) and were added to the file via punched cards. From some observations, for more recent years, there are means of values recorded directly on magnetic tape from digital magnetometers at various sample rates, for example, each minute. The accuracy of these data varies but is generally good, particularly for the more recent years. Approximately 60 observation-years of these data are added to the files each year.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date May 28, 2013
Metadata Created Date Aug 20, 2013
Metadata Updated Date May 29, 2014
Reference Date(s) Jan 01, 1957 (publication)
Frequency Of Update irregular

Metadata Source

Harvested from NGDC - STP - Geomag - iso

Additional Metadata

Resource Type Dataset
Metadata Date May 28, 2013
Metadata Created Date Aug 20, 2013
Metadata Updated Date May 29, 2014
Reference Date(s) Jan 01, 1957 (publication)
Responsible Party DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Use Constraints: None, Access Constraints: No Constraints
Bbox East Long 180.000000
Bbox North Lat 90.000000
Bbox South Lat -90.000000
Bbox West Long -180.000000
Coupled Resource
Frequency Of Update irregular
Guid gov.noaa.ngdc.stp.geomag:G00002
Harvest Object Id 024a8d51-13bc-4619-8b86-18057b5a92ef
Harvest Source Id 21ab3ced-499d-4f59-bb62-448fe06ef827
Harvest Source Title NGDC - STP - Geomag - iso
Licence 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.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1902-01-02

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