Level 1B radiance measurements from the Cross-track Infrared Sounder instrument on the NOAA-20 satellite are processed via Principal Component Analysis. The data collection includes compressed, denoised radiance values and a Rapid Event Detection product for identifying rare atmospheric signals. It is produced by the GES DISC organization.
Use Cases
- Detect atmospheric gases from fires and volcanoes using the Rapid Event Detection product's spectral region outputs.
- Analyze denoised radiance trends over time from the PCA-compressed Level 1B data.
- Study geolocation-specific atmospheric phenomena by combining the radiance data with ancillary spacecraft and instrument information.
- Compare signal efficiency against standard Level 1B products using the dataset's noise-reduced and compressed radiance values.
Strengths
- Data volume is many times smaller than the existing Level 1B product.
- About 80% of random noise is removed from the radiance measurements.
- Includes a new Rapid Event Detection component for locating rare signals.
Limitations
- Specific row count, column details, and file size are unknown.
- The temporal coverage and update frequency are not specified.
- Sample data and exact file formats are unavailable for inspection.
Provenance
- Source
- GES DISC
- Collection Method
- Principal Component Analysis compression and denoising applied to Cross-track Infrared Sounder Level 1B Full Spectral Resolution data.
- Geography
- Global coverage from the Joint Polar Satellite System-1 (JPSS-1/NOAA-20) platform.