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Full catalog/risat-eos04
risat-eos04·dataset

RISAT / EOS-04 — India's all-weather radar satellite

RISAT / EOS-04 C-band SAR
hydrosphere ISRO ISRO NRSC Bhoonidhi active
In plain English

What it measures. Radar images of the land that work through cloud, rain and at night — sensing floods, wet soil, crops and forest.

How it's made. An ISRO satellite carrying a C-band synthetic-aperture radar, India's own cloud-piercing imager.

How & where you'd use it. Monsoon-season flood mapping when optical satellites are blinded by cloud, plus agriculture and soil-moisture monitoring. Via ISRO Bhoonidhi (registration).

What's measured

SARradarfloodagricultureISROC-bandsoil moisturecloud

Coverage & cadence

  • Time span2022-02-14 → ongoing
  • Spatial extent68, 6, 98, 37

What you can do with it

  • Follow rainfall, floods and surface-water extent
  • Track soil moisture and the onset of drought
  • Monitor lakes, rivers and groundwater storage
Official description

ISRO's C-band radar imaging satellite — all-weather, day-night imagery for agriculture, soil moisture, floods and forestry, crucial during the cloudy monsoon. Via ISRO Bhoonidhi (registration).

Get the data

risat-eos04_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="risat-eos04",
    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 ISRO NRSC Bhoonidhi
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.