TY - JOUR A1 - Lühr, H. A1 - Schlegel, K. A1 - Araki, T. A1 - Rother, M. A1 - Förster, M. T1 - Night-time sudden commencements observed by CHAMP and ground-based magnetometers and their relationship to solar wind parameters JO - Ann. Geophys. J1 - ANGEO VL - 27 IS - 5 SP - 1897 EP - 1907 Y1 - 2009/05/04 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/27/1897/2009/ L1 - https://angeo.copernicus.org/articles/27/1897/2009/angeo-27-1897-2009.pdf DO - 10.5194/angeo-27-1897-2009 ER -