The Dartmouth Flood Observatory, based in the United States, uses remote sensing data to detect, measure and map river discharge and flooding. It publishes rapid response inundation maps during a flood as well as an atlas of large floods from 1985 to present.

Data from the observatory are used by several disaster alert and relief agencies, including Sentinel Asia, Thomson Reuters AlertNet, the UN Office for the Coordination of Humanitarian Affairs and Europe's Global Disaster Alert and Coordination System.

EM-DAT, run by the Centre for Research on the Epidemiology of Disasters at the Universite Catholique de Louvain in Belgium, provides statistics and data on disasters' impact on humans, such as the number of people killed, injured or affected as well as economic damage estimates and disaster-specific aid contributions.

Users can search the database or pull out summary information including graphs to show temporal trends as well as reference maps of disasters by type or date.

AARSE is a nongovernmental network of African scientists and professionals working in remote sensing and geographic information systems. It holds a biannual conference and runs regional and local seminars and workshops on how to use remote sensing for environmental studies.

The AARSE website publishes contact details of council members, news about developments in remote sensing that are relevant to Africa and a list of events among other information.

UNEDRA promotes collaboration among African universities in disaster risk reduction using remote sensing and geoinformation.

It publishes online training courses, runs regional workshops and provides advice on curricula development, among other activities. Information on its activities and achievements is made available through the UNEDRA website together with a list of participating universities and contact information for organisations wishing to join the network.