Raw microwave rain-sensor counts (GPM GMI)
What it measures. Raw, unaltered readings straight from the GPM Microwave Imager, a microwave sensor that scans in a circle as the satellite flies.
How it's made. Captured directly by the GMI instrument aboard the GPM core satellite, kept at the earliest processing stage with hardware calibration views included.
How & where you'd use it. A low-level building-block input used to make higher-level rainfall products; most people use those finished products rather than these raw counts directly.
What's measured
Coverage & cadence
- Time span2014-03-04 → ongoing
- Measured byGPM (GMI)
- Processing levelLevel 1A
- 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 Older versions will no longer be available and have been superseded by Version 07.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 1AGMI product contains unaltered data directly from the Global Microwave Imager (GMI) aboard the GPM core satellite. The GMI is a multi-channel, conical- scanning, microwave radiometer. If there is enough bandwidth, the entire circle of GMI samples will be sent down. The 1AGMI 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
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="GPM_1AGMI",
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. Official links
- Access the data via HTTPS GET DATA
- Use the Earthdata Search to find and retrieve data sets across multiple data centers. GET DATA
- Access the data via the OPeNDAP protocol. USE SERVICE API
- README Document VIEW RELATED INFORMATION
- Algorithm Theoretical Basis Document VIEW RELATED INFORMATION
- FILE SPECIFICATION DOCUMENT VIEW RELATED INFORMATION
- GPM and partner sensors anomalous events VIEW RELATED INFORMATION
- Instrument Description VIEW RELATED INFORMATION