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Full catalog/GPM_3CMB
GPM_3CMB·v07·dataset

How much it rained, radar plus microwave (GPM, monthly)

GPM DPR and GMI (Combined Precipitation) L3 1 month 0.25 degree x 0.25 degree V07 (GPM_3CMB) at GES DISC
atmosphere NASA GES_DISC Level 3 active
In plain English

What it measures. Monthly global rainfall estimates that merge two views of precipitation into one product, reported in quarter-degree grid squares.

How it's made. Created by combining measurements from the GPM satellite's microwave imager and its dual-frequency precipitation radar, averaged over each month.

How & where you'd use it. Useful for tracking global rainfall patterns, validating weather and climate models, and studying water cycles; a matching version exists for the older TRMM era.

What's measured

ATMOSPHERE › ATMOSPHERIC WATER VAPORATMOSPHERE › PRECIPITATION

Coverage & cadence

  • Time span2014-03-08 → ongoing
  • Measured byGPM (DPR, GMI)
  • Processing levelLevel 3
  • Spatial extent-180, -67, 180, 67
  • StatusCOMPLETE

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

Version 07 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 07. This is a precipitation product created from the combination of the Global Precipitation Measurement (GPM) Microwave Imager (GMI) and Dual-frequency Precipitation Radar (DPR) instruments. Similar product, using the GPM algorithm, has been created for the TRMM epoch (December 1997 - April 2015), and can be found under the name GPM_3CMB_TRMM

Get the data

gpm_3cmb_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="GPM_3CMB",
    version="07",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from GES_DISC
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.