Articles | Volume 22, issue 12
Research article
21 Dec 2022
Research article |  | 21 Dec 2022

A global open-source database of flood-protection levees on river deltas (openDELvE)

Jaap H. Nienhuis, Jana R. Cox, Joey O'Dell, Douglas A. Edmonds, and Paolo Scussolini

Data sets

openDELvE Research Data Store J. O'Dell, J. H. Nienhuis, J. R. Cox, D. A. Edmonds, and P. Scussolini

Short summary
Humans build levees to protect themselves against floods. We need to know where they are to correctly predict flooding, for example from sea level rise. Here we have looked through documents to find levees, and checked that they exist using satellite imagery. We developed a global levee map, available at, and we found that 24 % of people in deltas are protected by levees.
Final-revised paper