AA Geomagnetic Activity Indices From Two Antipodal Observatories in Australia and England

Description

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, indices that are based on the data from two approximately antipodal observatories in England and Australia. The AA-indices are available from 1868 to present.

Resources

Name Format Description Link
0 ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/AASTAR/
0 Home page ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/AASTAR/
0 FTP site for the aa index from 1868 through present day ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/AASTAR/
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

Tags

  • geomagnetic indices
  • nesdis
  • national geophysical data center
  • noaa
  • global
  • interior & crust
  • u.s. department of commerce
  • earth science
  • doc/noaa/nesdis/ngdc
  • solid earth
  • doc/noaa/nesdis/ncei
  • land
  • geomagnetism
  • national centers for environmental information

Topics

Categories