TY - EJOUR T1 - An early-warning indicator for Amazon droughts exclusively based on tropical Atlantic sea surface temperatures AU - Ciemer, Catrin AU - Rehm, Lars AU - Kurths, Jürgen AU - Donner, Reik AU - Winkelmann, Ricarda AU - Boers, Niklas PY - 2020 LA - eng PB - Humboldt-Universität zu Berlin JO - Environmental research letters DO - 10.1088/1748-9326/ab9cff ER -