National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

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Reflection of the Geomagnetic Activity Occurring in the Earth's Northern and Southern Hemisphere (KM, KN, KS Indices)

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives on a monthly basis, the KM, KN, KS indices from Institue De Physique Du Globe, Paris, France. These data are available from 1959 to present. The KN and KS are planetary indices which have been derived using data obtained by northern and southern hemisphere observatories, respectively. KM is mean value and is usually very close in magnitude to KP. These indices reflect the geomagnetic activity occurring in the Earth's northern and southern hemispheres.

Cite this dataset when used as a source.

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    Distribution Formats
    • ASCII
    Distributor Distributor information not available
    No point of contact available for this dataset
    Documentation links not available.
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    • publication: 1959-01-01
    Edition: First
    Dataset Progress Status Under development
    Data Update Frequency: Irregular
    Purpose: Geomagnetic Activity Research
    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.
    Time Period: 1959-01-01  to  Present
    Spatial Bounding Box Coordinates:
    N: 90.000000
    S: -90.000000
    E: 180.000000
    W: -180.000000
    Spatial Coverage Map:
    • EARTH SCIENCE > SOLID EARTH > Geomagnetism > Geomagnetic Indices
    • Earth Interior & Crust
    • Geomagnetism
    • Global
    • Northern Hemisphere
    • Southern Hemisphere
    Use Constraints
    • Use Constraints: None
    Access Constraints
    • Access Constraints: No Constraints
    • Depends on the Data Set None if receiving the data online
    Lineage Statement Lineage statement not available.

    Metadata Last Modified: 2015-09-18

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