BARSOTTI, S., SCOLLO, S., MACEDONIO, G., DI VITO, M., FELPETO, A., KOMOROWSKI, J.-C., VOUGIOUKALAKIS, G., ZEEUW-VAN DALFSEN, E., OTTEMØLLER, L., PIMENTEL, A., COLTELLI, M., CARMO, R., MARQUES, R., MEDEIROS, J., FERREIRA, T., LOUGHLIN, S. (2023) - Operating the Aviation Color Code system at European Volcano Observatories: experiences and challenges. 8th International Workshop on Volcanic Ash (IWVA-8), Managing and mitigating volcanic risks to aviation with an explosion of science! IAVCEI 2023 Scientifc Assembly Post-Conference Workshop, Rotorua, New Zealand, 4-5 February.