This is a model described in the paper
Y. Zhang, L.J. Paxton, An empirical Kp-dependent global auroral model based on TIMED/GUVI FUV data, Journal of Atmospheric and Solar-Terrestrial Physics, Volume 70, Issues 8–9, 2008, Pages 1231-1242, ISSN 1364-6826, https://doi.org/10.1016/j.jastp.2008.03.008.
Please refer to Appendix A of the paper:
Here is an example plot for kp=3: the black and red-dashed curves are the poleward and equatorward boundaries at flux above 0.25
Here is an example plot for Pedersen and Hall conductance using the paper
Robinson, R. M., Vondrak, R. R., Miller, K., Dabbs, T., & Hardy, D. (1987). On calculating ionospheric conductances from the flux and energy of precipitating electrons. Journal of Geophysical Research, 92, 2565–2569. https://doi.org/10.1029/JA092iA03p02565