2.2.3. IMERG-FR (Final-Run) V05B

The Global Precipitation Measurement (GPM) mission's Precipitation Processing System (PPS) at NASA's Goddard Space Flight Center released IMERG-V05B data to the public in late November 2017. The dataset includes precipitation since March 2014. IMERG datasets are freely accessible to users from NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) website (https://disc.gsfc.nasa.gov). The IMERG-FR product is produced based on merging and interpolating all constellation microwave sensors and IR-based observations, and calibrated with monthly precipitation rain gauges from GPCC and create research-level products [19].
