FY3A VIRR Level1 Product provides geolocated and calibrated Earth view data from the Fengyun-3A satellite's Visible and Infrared Radiometer. SCIOPS produced this dataset, which contains reflective data for visible and near-infrared bands and emissive radiance data for thermal infrared bands. The specific temporal coverage, volume, and update frequency are not detailed.
Use Cases
- Calculate land surface temperature using calibrated emissive radiance data from the thermal infrared bands.
- Perform vegetation index analysis using the calibrated reflective data from the visible and near-infrared bands.
- Conduct cloud detection and classification by analyzing spectral signatures across the VIRR's multiple bands.
- Validate atmospheric correction models by comparing geolocated, calibrated top-of-atmosphere radiance with ground measurements.
Strengths
- Data is geolocated, providing precise spatial coordinates for each observation.
- Data is calibrated, offering physical radiance values for quantitative analysis.
- Covers both reflective (visible/near-infrared) and emissive (thermal infrared) spectral regions.
Limitations
- The sample size, temporal range, and geographic coverage are unspecified, limiting assessment of representativeness.
- Data quality metrics for calibration accuracy, geolocation error, or cloud contamination are not provided.
Provenance
- Source
- SCIOPS, via NASA Earthdata platform.
- Collection Method
- Collected by the Visible and Infrared Radiometer (VIRR) instrument aboard the Fengyun-3A (FY-3A) satellite.
- Time Range
- null
- Freshness
- null
- Geography
- Global Earth observation coverage from the satellite's orbit, but specific bounds are unknown.