TY - JOUR A1 - Xiong, C. A1 - Lühr, H. T1 - An empirical model of the auroral oval derived from CHAMP field-aligned current signatures – Part 2 JO - Ann. Geophys. J1 - ANGEO VL - 32 IS - 6 SP - 623 EP - 631 Y1 - 2014/06/04 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/32/623/2014/ L1 - https://angeo.copernicus.org/articles/32/623/2014/angeo-32-623-2014.pdf DO - 10.5194/angeo-32-623-2014 ER -