ISRO EOS-04 (RISAT-1A) C-band SAR

ISRO EOS-04 (RISAT-1A) C-band SAR

MH Subset Needed

Indian C-band Synthetic Aperture Radar satellite (follow-on to RISAT-1) with StripMAP, ScanSAR, and Spotlight imaging modes. Provides all-weather observation capability with derived products including 500m operational soil moisture. Free open data available via Bhoonidhi for coarser-than-5m resolution modes.

Build an all-weather crop monitoring system for Maharashtra using RISAT SAR data that works through monsoon clouds.
Maharashtra subset not yet extracted. This is a global dataset that contains data covering Maharashtra. A regional subset can be extracted by filtering on geographic coordinates or administrative boundaries.
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# ISRO EOS-04 (RISAT) SAR data
print('ISRO EOS-04 RISAT SAR')
print('Access via NRSC data center for authorized users')
Modality
satellite-imagery
Size
1-50m resolution depending on mode; 12-day revisit; India-focused coverage
License
Format
GeoTIFF
Language
en
Update Frequency
12 days
Organization
Indian Space Research Organisation (ISRO)
Category
geospatial-gis

Schema

FieldTypeDescription
backscatterfloatSAR backscatter value in dB
polarizationstringPolarization mode (HH, VV, HV, VH)
resolution_mfloatSpatial resolution in meters

Build With This

Create a rice paddy area mapper for Maharashtra using SAR's sensitivity to standing water in paddy fields
Develop a soil moisture estimator from SAR backscatter for irrigation scheduling in Maharashtra
Build a flood mapping system using RISAT SAR for rapid damage assessment during Maharashtra monsoon floods

AI Use Cases

Flood mapping during Maharashtra monsoonRice crop area monitoring using temporal SARSoil moisture mapping at 500m resolutionUrban area change detectionDam and reservoir monitoring
Last verified: 2026-03-09