MODIS/Terra: Global 8-Day Fire Detection at 1km Resolution

NASA's Terra MODIS satellite provides 8-day composite data on thermal anomalies and fire activity at a 1-kilometer spatial resolution. The product includes a fire mask and pixel quality indicators, with improvements in calibration and polarization corrections implemented in Version 6.1. The dataset is maintained by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Mapping global fire activity and hotspots based on the 8-day composite fire mask.
• Analyzing land surface thermal properties using the thermal anomaly detection layers.
• Assessing data quality for fire monitoring applications using the included pixel quality indicators.
• Studying long-term fire trends and patterns from the consistent, gridded satellite observations.

Strengths

• Spatial resolution is specified as 1 kilometer.
• Data incorporates calibration improvements including polarization corrections for reflective solar bands.
• Product is a Level 3 gridded composite, suggesting standardized processing.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Known issues are documented on an external website, requiring additional review for quality assessment.
• Row count and total file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite remote sensing via the Terra MODIS instrument, processed as a Level 3 gridded product.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03-12 23:36:27.267008; freshness should be verified.

Geography

Global coverage, indicated by the 'Global' designation in the title.