A compendium of environmental attributes derived from existing global datasets and assigned to each river reach and each sub-basin of HydroSHEDS at 15 arc-second resolution.

The goal of developing HydroATLAS is to provide a single comprehensive database gathering and presenting a wide range of environmental attributes from various sources in a consistent and organized manner. HydroATLAS is divided in two databases, StreamATLAS and BasinATLAS. Overall, StreamATLAS and BasinATLAS are databases of environmental attributes that have been extracted for the river network from HydroSHEDS and the HydroBASINS global sub-basin delineations, respectively. HydroATLAS datasets have the same cell size and extent as HydroSHEDS datasets, 15 arc-second resolution, and can be used in conjunction with them.


Land surface runoff data, one of the catchment characteristics available in the HydroATLAS database, applied to global sub-basins

Land surface runoff data, one of the environmental attributes available in the HydroATLAS database, applied to global sub-basins

HydroATLAS provides a consistent and organized presentation of over 100 environmental attributes drawn from the most recent published sources. The environmental attributes are organized into seven categories: hydrology and hydrography, climate, physiography, land cover and land use, soil, geology, and demographics. HydroATLAS derives these environmental attributes for river reaches and hierarchically nested watersheds at multiple scales based on the HydroBASINS delineations, which are derived from the HydroSHEDS database.

For more information, refer to our technical documentations (for SteamATLAS and for BasinATLAS).