Welcome to the Flood Damage Database HOWAS 21

HOWAS 21 is the international flood damage database. On this website you will find information about the underlying concept of HOWAS 21, its object-specific data sets and its data use policy. If you already have an account with HOWAS 21, you can access its data here.

The main objectives of HOWAS 21 are

  • to collect, harmonise und provide object-specific flood damage data that meets certain minimum standards, and
  • to integrate existing datasets and provide a means to add more data continously in the future.

At the moment HOWAS 21 contains 8329 flood damage data records from Germany and Austria.

Number of flood damaga data records per sector
Sector distribution of records

HOWAS 21 data can be referenced using this Digital Object Identifier (DOI) 10.1594/GFZ.SDDB.HOWAS2 http://dx.doi.org/10.1594/GFZ.SDDB.HOWAS21

HOWAS 21 was initially developed as part of the research project MEDIS (Methoden zur Erfassung Direkter und Indirekter Schäden) and kindly supported by the German Federal Ministry of Education and Research (July 2005 - June 2008, FKZ 0330688).