Abstract Comparisons have been made between the percentage of light ions in the upper ionosphere as predicted by the IRI model and as found in incoherent scatter (ICS) measurements at the stations Millstone Hill, Arecibo and Jicamarca. Major discrepancies are observed in both day and night. The IRI values are always considerably larger than the ICS measurements. Theoretical values are calculated as well, assuming chemical equilibrium and using the MSIS neutral density model /1/. In most cases these theoretical values favour the ICS values; only for the daytime ion composition above Millstone Hill has better agreement with the IRI model been found.


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    Title :

    Comparison between the IRI ion composition and incoherent scatter measurement and theoretical values


    Contributors:
    Bilitza, D. (author)

    Published in:

    Publication date :

    1984-01-01


    Size :

    3 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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