In situ measurements of tropical cloud properties in the West African Monsoon : Upper tropospheric ice clouds, mesoscale convective system outflow, and subvisual cirrus

by Frey, W., Borrmann, S., Kunkel, D., Weigel, R., De Reus, M., Schlager, H., Roiger, A., Voigt, C., Hoor, P., Curtius, J., Krämer, M., Schiller, C., Volk, C.M., Homan, C.D., Fierli, F., Di Donfrancesco, G., Ulanovsky, A., Ravegnani, F., Sitnikov, N.M., Viciani, S., D'Amato, F., Shur, G.N., Belyaev, G.V., Law, K.S., Cairo, F.