12-year (2007-2018) of global daily rainfall (12km resolution) freely available at: https://zenodo.org/record/2591215
The SM2RAIN-ASCAT dataset is particularly good in data scarce regions, i.e., in Africa and  South America. In these areas we expect the larger benefits in using SM2RAIN-ASCAT for hydrological, meteorological and agricultural applications.

Here an animation showing 12-year of global rainfall »