Preface: The use of remotely piloted aircraft systems (RPAS) in monitoring applications and management of natural hazards

In the special issue The use of remotely piloted aircraft systems (RPAS) in monitoring applications and management of natural hazards we propose a collection of papers that provide a critical description of the state of the art in the use of RPAS for different scenarios. In particular, the sequence of papers can be considered an exhaustive representation of the state of the art of the methodologies and approaches applied to the study and management of natural hazards.