GPM

IMERG Data Now in Giovanni-4

The NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) has recently added all of the half-hourly and monthly *Final* IMERG data variables to the next generation of Giovanni, Giovanni-4 (G4). Giovanni is a Web-based application developed by the GES DISC that provides a simple and intuitive way for users to visualize, analyze, and access vast amounts of Earth science remote sensing data, without having to download the data.

Learn more: http://disc.sci.gsfc.nasa.gov/gesNews/imerg_in_G4

GPM's First Global Rainfall and Snowfall Map

GPM's First Global Rainfall and Snowfall Map

The Global Precipitation Measurement mission has produced its first global map of rainfall and snowfall.

Like a lead violin tuning an orchestra, the GPM Core Observatory – launched one year ago on Feb. 27, 2014, as a collaboration between NASA and the Japan Aerospace Exploration Agency – acts as the standard to unify precipitation measurements from a network of 12 satellites. The result is NASA's Integrated Multi-satellite Retrievals for GPM data product, called IMERG, which combines all of these data from 12 satellites into a single, seamless map.

Two Satellites Measured Rainfall in Tropical Depression Mekkhala

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Two Satellites Measured Rainfall in Tropical Depression Mekkhala

The first tropical depression of the 2015 western Pacific season formed southwest of Guam on January 13 and is predicted to intensify into a tropical storm while headed toward the Philippines. NASA's TRMM and GPM satellites provided a look at Tropical Depression Mekkhala's rainfall data that showed the area of moderate rainfall had expanded as the storm strengthened on January 13.
Mekkhala was previously known as Tropical Depression 01W until January 14 when it was renamed.

Updated GPM Radiometer Products

The Precipitation Processing System (PPS) has begun producing updated GPM radiometer products as of 12/4/2014 due to an error discovered in the calculation of the Sun Angle in the PPS Geolocation Toolkit. This is considered a minor update with the Product Version being incremented in letter only. Please see the list of affected products here: http://pps.gsfc.nasa.gov/Documents/GPM_PPS_SunAngle_Products_20141204.pdf 

The Transition in Multi-Satellite Products from TRMM to GPM (TMPA to IMERG)

Published Date: 
08/27/2018

The transition from the Tropical Rainfall Measuring Mission (TRMM) data products to the Global Precipitation Measurement (GPM) mission products is well underway. This document specifically addresses the multi-satellite products, the TRMM Multi-satellite Precipitation Analysis (TMPA), the real-time TMPA (TMPA-RT), and the Integrated Multi-satellitE Retrievals for GPM (IMERG).

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GPM Data Goes Public

The most accurate and comprehensive collection of rain, snowfall and other types of precipitation data ever assembled now is available to the public. This new resource for climate studies, weather forecasting, and other applications is based on observations by the Global Precipitation Measurement (GPM) Core Observatory, a joint mission of NASA and the Japan Aerospace Exploration Agency (JAXA), with contributions from a constellation of international partner satellites.

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