TY - JOUR A1 - Grocott, A. A1 - Wild, J. A. A1 - Milan, S. E. A1 - Yeoman, T. K. T1 - Superposed epoch analysis of the ionospheric convection evolution during substorms: onset latitude dependence JO - Ann. Geophys. J1 - ANGEO VL - 27 IS - 2 SP - 591 EP - 600 Y1 - 2009/02/06 PB - Copernicus Publications SN - 1432-0576 UR - http://www.ann-geophys.net/27/591/2009/ L1 - http://www.ann-geophys.net/27/591/2009/angeo-27-591-2009.pdf DO - 10.5194/angeo-27-591-2009 ER -