This dataset provides near-surface meteorological data for driving land surface models and other terrestrial modeling systems. It blends reanalysis data with observations and disaggregates in time and space. The dataset is currently available at 1.0 degree (plus 0.5 and 0.25 degree), 3-hourly (plus daily and monthly) resolution globally for 1948-2008. Experimental updates include a 1901-2012 version (that will become V2), real-time updates, higher resolution versions for Africa (that assimilates all available gauge data) and future climate projections based on bias-corrected climate model output