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. (2012).
Abstract: colloque du PNST, La Londe Les Maures, France.
Programme: 905
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Febvre, P., E. Pozzo di Borgo, A. Chambodut, C. Fourie, E. Saunderson, D. Gouws, S. Bernard, A. Cavaillou, J. Poupeney, D. Boyer, C. Sudre . (2012). Towards an international network of superconducting magnetometers for geomagnetic and Earth-Ionosphere studies.
Abstract: IDUST conference, Apt, France.
Programme: 905
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Kusumita Arora, Aude Chambodut and Barbara Leichter . (2013). RECENT MAGNETIC SURVEYS FOR REGIONAL AND GLOBAL CHARACTERIZATION OF THE GEOMAGNETIC FIELD.
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Aude Chambodut and Michel Menvielle . (2013). LONGITUDINAL SECTORIAL INDICES COMPARED WITH PLANETARY K INDEX.
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Chambodut, Aude; Lathuillère, Chantal; Menvielle, Michel; Marchaudon, Aurélie; El-Lemdani Mazouz, Farida; Boscher, Daniel; Rochel Grimald, Sandrine. (2013). Derivation and properties of new geomagnetic indices and their use in Space Weather applications..
Abstract: IAGA 2013, aout 2013, Merida, Mexique.
A great number of Space Weather applications rely on K-derived planetary geomagnetic indices. These indices, namely Kp/ap or Km/am (depending on the number of used subauroral geomagnetic stations) are therefore limited to the 3-hour time resolution of K indices. In addition, they do not represent the intrinsic spatial variations that result from the local time dependency of the solar wind/magnetosphere interaction.
We have defined new geomagnetic indices, based on the magnetic variations recorded in the am network of ground based observatories, with a better time resolution and/or a better spatial resolution. Using the root mean square of the horizontal magnetic variations, instead of the 3-hour K indices, we have calculated !m indices with different time resolution down to 15 minutes.
On another hand, the better spatial resolution is achieved by considering sector indices defined with respect to the Magnetic Local Time, the so called MLT sectorial indices. The properties of theses new indices will be presented. As an application, we will present their possible use in thermosphere modelling. We will also present how the !m index brings new information in the study of the dynamic of the magnetosphere and of the inner magnetosphere.
Programme: 905
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. (2013). The K-derived MLT sector geomagnetic indices
. GEOPHYSICAL RESEARCH LETTERS, 40(18), 4808–4812.
Keywords: 1530 Rapid time variations, 1555 Time variations: diurnal to decadal, 2784 Solar wind/magnetosphere interactions, 7954 Magnetic storms, geomagnetic indices, MLT sector (Magnetic Local Time sector),
Programme: 905
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Goutail F., Pommereau J.P., Phillips C., Deniel C., Sarkissian A., Lefevre F., Kyro E., Rummukainen M., Ericksen P., Andsersen S.B.,et al. (1999). Depletion of column ozone in the Arctic during the winters of 1993-94 and 1994-95. Journal of atmospheric chemistry, 32.
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Roscoe H.K., Johnston P.V., Van Roozendael M., Richter A., Preston K.; Lambert J.C. et al. (1999). Slant column measurements of O3 and NO2 during the NDSC intercomparison of zenith-sky UV-visible spectrometers in June 1996. Journal of atmospheric chemistry, 32, 281–314.
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Ricaud P., Monnier E., Goutail F., Pommereau J.P., David C., Godin S., Froidevaux L., Waters J.W., Mergenthaler J., Roche A.E., Pumphrey H. & Chippeerfield M.P. (1998). Stratosphere over Dumont d'Urville, Antarctica, in winter 1992. J. Geophys. Res., 103(d11), 13267–13284.
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Lambert J.C., Van Roozendael M., De Aziere M., Simon P.C., Pommereau J.P., Goutail F., Sarkissian A. & Gleason J.F. (1998). Investigation of to pole-to pole performances of space-borne atmospheric chemistry sensors with ground-based networks. Journal of the atmospheric sciences, 56, 176–193.
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