Introduction to Icarus special issue “From Mars Express to ExoMars” by Lopez-Valverde, MA, Titov, DV, Wilson, CF

Annual appearance of hydrogen chloride on Mars and a striking similarity with the water vapor vertical distribution observed by TGO/NOMAD by Aoki, S, Daerden, F, Viscardy, S, Thomas, IR, Erwin, JT, Robert, S, Trompet, L, Neary, L, Villanueva, GL, Liuzzi, G, Crismani, MMJ, Clancy, RT, Whiteway, J, Schmidt, F, Lopez-Valverde, MA, Ristic, B, Patel, MR, Bellucci, G, Lopez-Moreno, JJ, Olsen, KS, Lefevre, F, Montmessin, F, Trokhimovskiy, A, Fedorova, AA, Korablev, O, Vandaele, AC

Investigations of the Mars upper atmosphere with ExoMars Trace Gas Orbiter by López-Valverde, MA, Gerard, JC, González-Galindo, F, Vandaele, AC, Thomas, I, Korablev, O, Ignatiev, N, Fedorova, A, Montmessin, F, Määttänen, A, Guilbon, S, Lefevre, F, Patel, MR, Jiménez-Monferrer, S, García-Comas, M, Cardesin, A, Wilson, CF, Clancy, RT, Kleinböhl, A, McCleese, DJ, Kass, DM, Schneider, NM, Chaffin, MS, López-Moreno, JJ, Rodríguez, J

The Atmospheric Chemistry Suite (ACS) of three spectrometers for the ExoMars 2016 Trace Gas Orbiter by Korablev, O, Montmessin, F, Trokhimovskiy, A, Fedorova, AA, Shakun, AV, Grigoriev, AV, Moshkin, BE, Ignatiev, NI, Forget, F, Lefèvre, F, Anufreychik, K, Dzuban, I, Ivanov, YS, Kalinnikov, YK, Kozlova, TO, Kungurov, A, Makarov, V, Martynovich, F, Maslov, I, Merzlyakov, D, Moiseev, PP, Nikolskiy, Y, Patrakeev, A, Patsaev, D, Santos-Skripko, A, Sazonov, O, Semena, N, Semenov, A, Shashkin, V, Sidorov, A, Stepanov, AV, Stupin, I, Timonin, D, Titov, AY, Viktorov, A, Zharkov, A, Altieri, F, Arnold, G, Belyaev, DA, Bertaux, JL, Betsis, DS, Duxbury, N, Encrenaz, T, Fouchet, T, Gérard, JC, Grassi, D, Guerlet, S, Hartogh, P, Kasaba, Y, Khatuntsev, I, Krasnopolsky, VA, Kuzmin, RO, Lellouch, E, Lopez-Valverde, MA, Luginin, M, Määttänen, A, Marcq, E, Torres, J, Medvedev, AS, Millour, E, Olsen, KS, Patel, MR, Quantin-Nataf, C, Rodin, AV, Shematovich, VI, Thomas, I, Thomas, N, Vazquez, L, Vincendon, M, Wilquet, V, Wilson, CF, Zasova, LV, Zelenyi, LM, Zorzano, MP