Example of modeled CR(E₀) relationship. In the left panel the modeled relationship CR(E₀) corresponds to the case of a mono-energetic initial electron flux distribution. Similarly, in the right panel the relationship CR(E₀) corresponds to the case of a kappa initial distribution as a function of caracteristic energy E₀. The red and blue dots represent the modeled CR(E₀) relationship, respectively, for the north pole with ψ = 65.7° and for the south pole with ψ = 74.4°. The dotted red and blue lines represent the best fit for the north pole and south pole, respectively, using equation D.1.