NASA's Global Flood product delivers near real-time flood monitoring capabilities to disaster response teams, academic researchers, and industry for flood risk assessment. The product has been providing global flood maps at 250-meter resolution since 2012, with maps delivered within 3 hours of satellite observation through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE).
While the product has been generated from Moderate Resolution Imaging Spectroradiometer (MODIS) imagery since 2012, a Visible Infrared Imaging Radiometer Suite (VIIRS) based product was recently introduced to ensure continuity once the MODIS instruments aboard NASA’s Terra and Aqua missions are decommissioned. A key recent advance is the development of monthly recurring flood maps from the 22-year historical archive. This enables the introduction of a "recurring flood" class that distinguishes unusual flooding events from typical seasonal patterns. A flood-focused viewer will also be released soon, along with the reprocessed archive from 2003-2024.
During this webinar, participants will be introduced to the NRT global flood products. The presenters will discuss the methodology used to create the product, review data discovery and access, provide examples of use cases, and their plans for future developments. In addition, a demonstration for the Flood Location Observation and Overview Dashboard (FLOOD) web portal will be provided.
Learn more about the data and access user guides.
Access the 2-day and 3-day MODIS Near Real-Time (NRT) Global Flood Product (MCDWD) in NASA Worldview to browse and compare data to other events and datasets.