GEOGLOWS Hydrologic Model

GEOGLOWS is the Group on Earth Observation's (GEO) Global Water Sustainability Program. One of the offerings from this program is a global scale hydrologic model which provides daily forecasted streamflow and historical streamflow data back to 1940. This data and the many tools for using it are made possible through partnerships and collaborations with the European Centre for Medium-Range Weather Forecasts (ECMWF), Esri, AWS, The World Bank Group and many others. For more information about the GEOGLOWS program, please visit 

Download a 1 page announcement flier for GEOGLOWS V2 here 

Join the user group on Google Groups where you can get updates, ask the community, and stay connected! 

If you are a GEOGLOWS User, please take our survey here:

V2 Upgrades Fact Sheet