Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.490 IF 1.490
  • IF 5-year value: 1.445 IF 5-year
    1.445
  • CiteScore value: 2.9 CiteScore
    2.9
  • SNIP value: 0.789 SNIP 0.789
  • IPP value: 1.48 IPP 1.48
  • SJR value: 0.74 SJR 0.74
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 88 Scimago H
    index 88
  • h5-index value: 21 h5-index 21
Volume 25, issue 6
Ann. Geophys., 25, 1299–1310, 2007
https://doi.org/10.5194/angeo-25-1299-2007
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 25, 1299–1310, 2007
https://doi.org/10.5194/angeo-25-1299-2007
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.

  29 Jun 2007

29 Jun 2007

Recommendation for a set of solar EUV lines to be monitored for aeronomy applications

J. Lilensten1, T. Dudok de Wit2, P.-O. Amblard3, J. Aboudarham4, F. Auchère5, and M. Kretzschmar6 J. Lilensten et al.
  • 1LPG, CNRS and Joseph Fourier University, Bâtiment D de Physique, BP 53, 38041 Saint-Martin d'Hères cedex 9, France
  • 2LPCE, CNRS and University of Orléans, 3A Avenue de la Recherche Scientifique, 45071 Orléans cedex 2, France
  • 3LIS, CNRS, 961 Rue de la Houille Blanche, BP 46, 38402 St. Martin d'Hères cedex, France
  • 4LESIA, Paris Observatory, 5 Place Jules Janssen, 92195 Meudon, France
  • 5IAS, CNRS and Paris-Sud University, B�t. 121, 92405 Orsay cedex, France
  • 6SIDC, Royal Observatory of Belgium, Avenue Circulaire 3, 1180 Brussels, Belgium

Abstract. In two recent studies, Dudok de Wit et al. (2005) and Kretzschmar et al. (2006) have shown that the solar Ultra-Violet spectrum between 25 and 195 nm can be reconstructed from the observation of a set of 6 to 10 carefully chosen spectral lines. The best set of lines, however, is application dependent. In this study, we demonstrate that a good candidate for aeronomy applications consists of the following 6 lines: H I at 102.572 nm, C III at 97.702 nm, O V at 62.973 nm, He I at 58.433 nm, Fe XV at 28.415 nm and He II at 30.378 nm. The TRANSCAR model is used to quantify the impact of each individual line on the density, temperature and velocity profiles. Using a multidimensional scaling technique, we show how to select from this the best set of lines. Although this selection is motivated by the specification of the ionosphere, our set of lines is also found to be appropriate for reconstructing the variability of the solar spectrum between 25 and 195 nm.

Publications Copernicus
Download
Citation