Supplement to: Gutièrrez, Dimitri; Bouloubassi, Ioanna; Sifeddine, Abdelfettah; Purca, Sara; Goubanova, Katerina; Graco, Michelle; Field, David; Méjanelle, Laurence; Velazco, Federico; Lorre, Anne; Salvatteci, Renato; Quispe, Daniel; Vargas, Gabriel; Dewitte, Boris; Ortlieb, Luc (2011): Coastal cooling and increased productivity in the main upwelling zone off Peru since the mid-twentieth century. Geophysical Research Letters, 38, L07603, https://doi.org/10.1029/2010GL046324