Low-altitude ion heating with downflowing and upflowing ions

Yangyang Shen1, David J Knudsen1, Johnathan K Burchill1, Andrew David Howarth1, Andrew W Yau1, Gordon James2, David Miles3, Leroy L Cogger1 and Gareth William Perry1, (1)University of Calgary, Calgary, AB, Canada, (2)University of Calgary, Calgary, Canada, (3)University of Alberta, Edmonton, AB, Canada