Geofisica pura e applicata

, Volume 44, Issue 1, pp 315–321 | Cite as

Détermination des paramètres d'Ångström par des observations actionmétriques courantes

  • Mircea Herovanu


By comparing the equalities expressing the solar flux within a wide spectral region on the assumption of an extintion within the atmospheric aerosol given by βαλ−α and that of an extintion represented by β1λ−1, a relationship is established by means of which: 1) The error is discussed which is done when the air opacity is expressed by β1, in the case when α≠1; 2) A simple and quick method is worked out for determining the parameters βα and α from actinometric observations, carried out within the spectral regions λ<525 mμ and 525 mμ<λ<625 mμ.


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Copyright information

© Istituto Geofisico Italiano 1959

Authors and Affiliations

  • Mircea Herovanu
    • 1
  1. 1.Bucaresti I

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