VIIRS (NOAA-21) I-Band 375m Active Fire Detection NRT

Global near real-time satellite data detects active fires at a 375-meter nominal resolution from the NOAA-21 VIIRS instrument. This product is designed for improved mapping of fire perimeters and detection of smaller fires compared to coarser resolution systems, supporting fire management and science applications. The data provides detection information only, with no sub-pixel fire characterization due to frequent data saturation.

Use Cases

• Near real-time fire alert systems based on thermal anomaly detection.
• Mapping large fire perimeters based on improved 375m spatial resolution.
• Supporting fire ecology research based on time-series fire location data.
• Monitoring land surface thermal properties based on infrared band observations.

Strengths

• Provides a 375-meter nominal resolution, which is finer than many other satellite fire products (≥1km).
• Available in near real-time (NRT) for timely alerting and monitoring.
• Distributed by NASA FIRMS and LANCE, indicating authoritative processing and dissemination.

Limitations

• Provides detection information only, with no sub-pixel fire characterization due to data saturation issues.
• Metadata for row count, size, and specific columns is unavailable across all platforms.
• The listed last update date (2026-04-09) appears to be a future date, indicating a potential metadata error.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite observations from the NOAA-21 Visible Infrared Imaging Radiometer Suite (VIIRS) instrument.

Time Range

Near real-time (NRT); specific historical range not provided.

Freshness

Last updated: 2026-04-09 20:51:30.379515 (Note: This is a future date, suggesting a metadata anomaly).

Geography

Global