Statistical evidence of the link between drought and atmospheric moisture transport

Much of the world’s rainfall is triggered by the transport of moisture along corridors high up in the atmosphere. Through fresh analysis of historical climate data, Luis Gimeno-Sotelo and colleagues at the University of Vigo have shown for the first time how the causes of certain droughts can be directly linked with a lack of moisture being transported along these corridors. Their results could help climate scientists to better predict when and where droughts will occur in the future.