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Full catalog/GPM_2BCMB
GPM_2BCMB·v07·dataset

How much it rained or snowed (GPM combined)

GPM DPR and GMI Combined Precipitation L2B 1.5 hours 5 km V07 (GPM_2BCMB) at GES DISC
atmosphere NASA GES_DISC Level 2 active
In plain English

What it measures. How much rain and snow is falling and the structure of precipitation within storms, measured along the satellite's path at about 5 km detail.

How it's made. Created by combining two instruments on the GPM satellite, a precipitation radar and a microwave imager, to find the rainfall pattern that best fits both sets of measurements within each orbit.

How & where you'd use it. A high-quality reference for precipitation that supports weather and climate research, flood studies, and the calibration of other rainfall products.

What's measured

ATMOSPHERE › ATMOSPHERIC WATER VAPORATMOSPHERE › PRECIPITATION

Coverage & cadence

  • Time span2014-03-08 → ongoing
  • Measured byGPM (DPR, GMI)
  • Processing levelLevel 2
  • Spatial extent-180, -70, 180, 70
  • 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 Older versions will no longer be available and have been superseded by Version 07. The same algorithm has been applied to TRMM observations (December 1997 - April 2015) and these data can be found under product name GPM_2BCMB_TRMM. 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. The 2BCMB product uses data from the Dual-Frequency Precipitation Radar and GMI, determining the precipitation structure that best fits the combined data from these instruments. It is the Level 2 DPR and GMI Combined precipitation product that contains the data acquired by the GPM instruments in one orbit, or granule. It is written as a two-swath structure. The first swath, NS (normal scan), contains 49 rays per scan that match the KuPR rays. It is calculated from the KuPR and GMI data. The second swath, MS (matched scan), contains 25 rays per scan that match the 25 KaPR rays. It is calculated from the KuPR, KaPR, and GMI data.

Get the data

gpm_2bcmb_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="GPM_2BCMB",
    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.