VJ114IMG_NRT: NOAA-20/VIIRS 375m Active Fire Detection NRT

Global satellite data from the NOAA-20 satellite's VIIRS instrument provides near real-time detection of active fires at a 375-meter spatial resolution. The algorithm uses five 375m and complementary 750m spectral channels to identify fire pixels and separate them from land, water, and cloud backgrounds, offering improved mapping of both small fires and large fire perimeters. This Level 2 product is formatted as NetCDF4 files and is distributed through NASA's LANCE system for fire management and scientific applications.

Use Cases

• Generating near real-time fire alerts for emergency response based on the 375m detection capability.
• Mapping the perimeter of large wildfires for containment planning based on the improved spatial resolution.
• Studying fire dynamics and ecology over relatively small areas based on the enhanced sensitivity to smaller fires.
• Providing continuity for long-term fire trend analysis based on the product's lineage from the MODIS 1km fire product.

Strengths

• Provides a high spatial resolution of 375 meters for fire detection, which is finer than the ≥1km resolution of comparable products.
• Offers near real-time (NRT) availability through NASA's LANCE system, supporting time-sensitive applications.
• The algorithm leverages multiple spectral channels (five 375m and additional 750m) for robust pixel classification.

Limitations

• Provides fire detection only, with no sub-pixel fire characterization due to frequent data saturation issues.
• Metadata for row count, file size, and specific column names is unavailable across all sources.
• Conflicting license information is present, with one source specifying 'other-license-specified' and another showing 'None'.

Provenance

Source

NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE), processing data from the NOAA-20 (JPSS-1) satellite's VIIRS instrument.

Collection Method

Satellite remote sensing using the VIIRS 375m Active Fire detection algorithm.

Freshness

2026-04-09 21:08:50.764601

Geography

Global