IMERG: Rainfall estimates combining data from all passive-microwave instruments in the GPM Constellation (GPM IMERG L3): Near real time / late run

GPM Mission Concept

The Global Precipitation Measurement (GPM) mission is an international network of satellites that provide the next-generation global observations of rain and snow. Building upon the success of the Tropical Rainfall Measuring Mission (TRMM), the GPM concept centers on the deployment of a “Core” satellite carrying an advanced radar / radiometer system to measure precipitation from space and serve as a reference standard to unify precipitation measurements from a constellation of research and operational satellites. Through improved measurements of precipitation globally, the GPM mission will help to advance our understanding of Earth's water and energy cycle, improve forecasting of extreme events that cause natural hazards and disasters, and extend current capabilities in using accurate and timely information of precipitation to directly benefit society. GPM, initiated by NASA and the Japan Aerospace Exploration Agency (JAXA) as a global successor to TRMM, comprises a consortium of international space agencies, including the Centre National d’Études Spatiales (CNES), the Indian Space Research Organization (ISRO), the National Oceanic and Atmospheric Administration (NOAA), the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT), and others.

For more information on the GPM mission: http://pmm.nasa.gov/GPM

IMERG L3 Version 06: Release Notes

Variables
daily accumulated high quality precipitation from all available mw sources (mm)
daily accumulated precipitation (combined microwave-ir) estimate (mm)
daily total error of precipitation estimate (mm)
count of valid half-hourly hqprecipitation retrievals for the day
count of valid half-hourly precipitationcal retrievals for the day
count of valid half-hourly randomerror retrievals for the day
count of valid half-hourly precipitationCal retrievals for the day where precipitation is greater than 0
count of valid half-hourly hq precipitation retrievals for the day
Zonal Global by 0.1 deg
Meridional Global by 0.1 deg
Vertical  
Temporal Jun 1, 2000 to present (minus 1 or 2 days)
Static? no
Volume 14 MB/day
Server public:
Source http://pmm.nasa.gov/data-access/downloads/gpm 
Acquired Nov 21, 2019
APDRC contact
Supplements IMERG Technical Documentation (9 September 2019)
IMERG Algorithm Theoretical Basis Document (ATBD V06)