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Volume 36, issue 4 | Copyright
Ann. Geophys., 36, 953-967, 2018
https://doi.org/10.5194/angeo-36-953-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 04 Jul 2018

Regular paper | 04 Jul 2018

GREEN: the new Global Radiation Earth ENvironment model (beta version)

Angélica Sicard1, Daniel Boscher1, Sébastien Bourdarie1, Didier Lazaro1, Denis Standarovski2, and Robert Ecoffet2 Angélica Sicard et al.
  • 1ONERA, The French Aerospace Lab, Toulouse, France
  • 2CNES, The French Space Agency, Toulouse, France

Abstract. GREEN (Global Radiation Earth ENvironment) is a new model (in beta version) providing fluxes at any location between L = 1 and L = 8, all along the magnetic field lines, for all local times and for any energy between 1keV and 10MeV for electrons and between 1keV and 800MeV for protons. This model is composed of global models (AE8 and AP8, and SPM for low energies) and local models (SLOT model, OZONE and IGE-2006 for electrons, and OPAL and IGP for protons). GREEN is not just a collection of various models; it calculates the electron and proton fluxes from the most relevant existing model for a given energy and location. Moreover, some existing models can be updated or corrected in GREEN. For examples, a new version of the SLOT model is presented here and has been integrated in GREEN. Moreover, a new model of proton flux in geostationary orbit (IGP) developed a few years ago is also detailed here and integrated in GREEN. Finally a correction of the AE8 model at high energy for L<2.5 has also been implemented. The inputs of the GREEN model are the coordinates of the points and the date (year, month, day, UTC) along an orbit, the particle species (electron or proton) and the energies. Then GREEN provides fluxes all along the given orbit, depending on the solar cycle and other magnetic parameters such as L, Bmirror and Beq.

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GREEN (Global Radiation Earth ENvironment) is a new model providing particle fluxes at any location in the radiation belts, for energy between 1 keV and 10 MeV for electrons and between 1 keV and 800 MeV for protons. This model is composed of global models (AE8 and AP8, and SPM) and local models (SLOT model, OZONE and IGE-2006 for electrons; OPAL and IGP for protons).
GREEN (Global Radiation Earth ENvironment) is a new model providing particle fluxes at any...
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