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VIIRS I-Band 375 m Active Fire Data [1]

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Date: 2024-04 

What is the VIIRS 375 m Active Fire Product?

The Visible Infrared Imaging Radiometer Suite (VIIRS) 375 m thermal anomalies / active fire product provides data from the VIIRS sensor aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) and NOAA-20 satellites. The 375 m data complements Moderate Resolution Imaging Spectroradiometer (MODIS) fire detection; they both show good agreement in hotspot detection but the improved spatial resolution of the 375 m data provides a greater response over fires of relatively small areas and provides improved mapping of large fire perimeters. The 375 m data also has improved nighttime performance. Consequently, these data are well suited for use in support of fire management (e.g., near real-time alert systems), as well as other science applications requiring improved fire mapping fidelity.

Recommended reading: VIIRS 375 m Active Fire Algorithm User Guide (updated July 2018), VNP14IMGTDL_NRT (Suomi NPP), VJ114IMGTDL_NRT (NOAA-20) and VJ214IMGTDL_NRT (NOAA-21)

View the data in the FIRMS global fire map or FIRMS US/Canada

Download the data in GIS formats.

Image A comparison of daily fire spread mapped by 1km Aqua/MODIS (left), 750m VIIRS (center) and 375m VIIRS (right) data at the Taim Ecological Reserve in southern Brazil. The data cover the period March 26-31, 2013, which corresponds to Julian Days 85-90. The white outline represents the burned area mapped using 30m Landsat-7 on March 31. Note the more coherent fire spread and the excellent spatial agreement of the VIIRS 375m data (right image). This figure is reproduced courtesy of Wilfrid Schroeder, and appears in Schroeder, W., Oliva, P., Giglio, L. & Csiszar, I. 2014. “The New VIIRS 375 m active fire detection data product: Algorithm description and initial assessment.” Remote Sensing of the Environment, 143(2014). doi:10.1016/j.rse.2013.12.008

Fire products from VIIRS: A complementary VIIRS M-Band 750 m active fire data product is available in HDF format from NASA's Earthdata Search. FIRMS has opted to distribute the 375 m product rather than the 750 m product as the increased spatial resolution and increased number of fires detected is of interest to the to the broader fire management community.

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[1] Url: https://www.earthdata.nasa.gov/learn/find-data/near-real-time/firms/viirs-i-band-375-m-active-fire-data

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