The summertime buildup and decay of lightning NOx and aged thunderstorm outflow above North America.

Cooper, O.R.; Eckhardt, S.; Crawford, J.H.; Brown, C.C.; Cohen, R.C.; Bertram, T.H.; Wooldridge, P.; Perring, A.; Brune, W.H.; Ren, X.; Brunner, D.; Baughcum, S.L.