⚠️ Flood, Drought & Hazards

Global Ungauged basins

Aqueduct Floods Hazard Maps Version 2.0

A global collection of approximately one-kilometre riverine and coastal flood-hazard maps providing estimated inundation depth in metres for multiple return periods, baseline conditions and future climate scen…

Provider World Resources Institute — Aqueduct

Resolution 30 arc-seconds × 30 arc-seconds, approximately 1 kilometre at the equator

Global Ungauged basins

CEMS Global Flood Monitoring Observed Flood Extent and Related Products

An operational global flood-monitoring dataset that automatically processes incoming Sentinel-1 synthetic-aperture-radar imagery to map observed flood extent at approximately 20-metre processing resolution, to…

Provider Copernicus Emergency Management Service (CEMS)

Resolution Approximately 20 metres for the principal Sentinel-1-derived flood and water products. Some supporting layers, advisory information, population data and land-cover information may originate from or be supplied at differ

Global Ungauged basins

Climate Hazards Center — University of California, Santa Barbara

A quasi-global high-resolution climate dataset providing daily maximum and minimum 2-metre air temperature, heat index and wet-bulb globe temperature at approximately 0.05° resolution. CHIRTS-ERA5 combines the…

Provider Climate Hazards Center, University of California Santa Barbara

Resolution 0.05° × 0.05°, approximately 5 kilometres at the equator

Global Ungauged basins

GDACS Global Flood and Drought Alerts and Event Data

An operational global event database providing flood and drought locations, geographic polygons, dates, alert classifications, severity information, source links and preliminary humanitarian-impact assessments…

Provider Global Disaster Awareness and Coordination System

Resolution Event locations and geographic polygons rather than one uniform regular grid. Spatial detail varies by hazard, event, episode and source information. Drought polygons are derived partly from Global Drought Observatory i

Global Ungauged basins

MODIS/Aqua+Terra Flood Map Daily L3 Global 250 m LLL Grid NRT

A global near-real-time flood-mapping product generated from combined Terra and Aqua MODIS surface-reflectance observations. It supplies approximately 250-metre classifications of unusual flooding, recurring f…

Provider NASA Goddard Earth Sciences Data and Information Services Center

Resolution Nominally 250 metres. Native product-grid spacing: 0.002083333333333 degrees, approximately 232 metres at the equator.

Global Ungauged basins

NOAA IBTrACS Global Tropical Cyclone Tracks Version 4.01

A unified global archive of historical and recent tropical-cyclone tracks providing storm positions, dates, intensity, wind speed, central pressure, storm type, landfall proximity, translation speed, wind radi…

Provider NOAA National Centers for Environmental Information

Resolution Point and line vector observations rather than a regular raster grid. Storm positions are generally reported or stored to approximately 0.1° latitude and longitude, equivalent to about 10 kilometres at the equator. Act