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Global satellite data from the Suomi NPP satellite's VIIRS instrument provides near real-time detection of active fires and thermal anomalies at a 375-meter spatial resolution. The dataset is a Level 2 product generated using a multi-spectral contextual algorithm that leverages five 375m and complementary 750m channels to distinguish fires from land, water, and cloud pixels. It is processed through NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE) and provides continuity for the heritage MODIS fire product.
Data is available in multiple file formats (NetCDF4, HDF4, and complementary ASCII files). Users should consult the official VIIRS 375m Active Fire Algorithm User Guide for correct interpretation.