Brief communication "Landslide Early Warning System: toolbox and general concepts"

We de�ne landslide Early Warning Systems and present practical guidelines to assist end-users with limited experience in the design of landslide Early Warning Systems (EWSs). In particular, two �ow chart-based tools coming from the results of the SafeLand project (7th Framework Program) have been created to make them as simple and general as pos- sible and in compliance with a variety of landslide types and settings at single slope scale. We point out that it is not pos- sible to cover all the real landslide early warning situations that might occur, therefore it will be necessary for end-users to adapt the procedure to local peculiarities of the locations where the landslide EWS will be operated.