Instrument | Status/ Accuracy | Instrument Description | Measurement Technology | Timeline |
AGRI | Operational | A multiple channel radiation imager, one of the primary instruments aboard FY-4. Technically featured by a precisely designed two-mirror structure, capable of accurate and flexible sensing in two dimensions, and minute-level fast sector scanning. Frequent Earth imaging over 14 bands with off-axis three reflections of the primary optic system. On-board black body available for IR calibrations at very short time intervals. | n/a |  |
C-Band SAR | Operational | Marine core services, land monitoring and emergency services. Monitoring sea ice zones and arctic environment. Surveillance of marine environment, monitoring land surface motion risks, mapping of land surfaces (forest, water and soil, agriculture), mapping in support of humanitarian aid in crisis situations. | n/a |  |
COWVR | Operational | Hosted on the ISS, COWVR measures the direction and speed of winds at the ocean surface | Multi-purpose imaging MW radiometer |  |
PALSAR-2 | Operational | Disaster monitoring, land monitoring, agricultural monitoring, natural resource exploration, global forest monitoring, potential use and interferometry. | n/a |  |
SAR-L | Operational | Land, ocean, emergencies, soil moisture, interferometry, others. | n/a |  |
SCAT | Operational | Ocean surface wind vector | Radar scatterometer |  |
Scatterometer (Oceansat-3) | Operational | Ocean surface wind measurements, continuity to ocean vector wind | Radar scatterometer |  |
WindRAD | Operational | Measures sea-surface wind. | Radar scatterometer |  |
PALSAR-3 | Being developed | Disaster monitoring, land monitoring, agricultural monitoring, natural resource exploration, global forest monitoring, potential use and interferometry. | n/a |  |
SCA | Being developed | Measures wind speed and direction over ocean, soil moisture, sea ice cover, sea ice type, snow cover and snow parameters and vegetation parameters | Radar scatterometer |  |
Advanced Scatterometer | Proposed | Ocean surface wind measurements. | Radar scatterometer |  |