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Full catalog/GPM_BASEGPMGMI
GPM_BASEGPMGMI·v07·dataset

Raw microwave brightness from the GPM rain sensor

GPM GMI Antenna Temperatures L1BASE 1.5 hours 13 km V07 (GPM_BASEGPMGMI) at GES DISC
atmosphere NASA GES_DISC Level 1 active
In plain English

What it measures. Raw microwave brightness readings (essentially how much microwave energy reached the sensor across its channels) from the GPM rain-observing satellite, covering one full orbit at a time.

How it's made. Comes straight from the GMI microwave imager aboard the GPM core satellite, as the standard calibrated but unprocessed (Level 1) product with full detail in every channel.

How & where you'd use it. A foundational building-block input; people generally use the higher-level rainfall products built from it rather than this raw data directly.

What's measured

ATMOSPHERE › ATMOSPHERIC WATER VAPORATMOSPHERE › PRECIPITATION

Coverage & cadence

  • Time span2014-03-04 → ongoing
  • Measured byGPM (GMI)
  • Processing levelLevel 1
  • 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 Older versions are no longer available and have been superseded by the current version. GMI is a multi-channel, conical- scanning, microwave radiometer. The BASEGPMGMI product contains unaltered data directly from the Global Microwave Imager (GMI) aboard the GPM core satellite. It is the standard GMI calibration product with full precision of all physical fields. It contains one full orbit with no overlaps to other orbits in the production, although up to 200 overlap scans may be used for multi-scan calibration in the process. If there is enough bandwidth, the entire circle of GMI samples will be sent down. The BASEGPMGMI product's swaths 4 and 5 contain all of the samples that are sent down. Later products only use the subset of these data that contains the Earth view, hot load, and cold sky samples.

Get the data

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

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