MODIS/Aqua MYD14A1: Daily Global Fire and Thermal Anomalies at 1km

MODIS/Aqua Thermal Anomalies and Fire Daily (MYD14A1) Version 6.1 is a satellite-derived geospatial product providing daily fire and thermal anomaly data aggregated into eight-day files. It includes science dataset layers for fire mask, pixel quality, maximum fire-radiative-power, and fire pixel position within the satellite scan. The data is generated at a 1-kilometer spatial resolution as a Level 3 product.

Use Cases

• Monitoring wildfire activity and spread based on the daily fire mask layer.
• Assessing fire intensity and energy release using the maximum fire-radiative-power (MaxFRP) metric.
• Evaluating data reliability for thermal anomaly detection using the pixel quality indicators layer.
• Analyzing the temporal progression of fire events over eight-day periods packaged in single files.

Strengths

• Provides daily, per-pixel fire data at a consistent 1-kilometer spatial resolution.
• Includes multiple science dataset layers (fire mask, quality indicators, MaxFRP, scan position) for comprehensive analysis.
• Data is packaged into convenient eight-day aggregates, facilitating time-series analysis.
• Version 6.1 incorporates specific calibration improvements for reflectance and infrared bands.

Limitations

• Key metadata such as row count, column names, and exact file size are unavailable across all sources.
• The dataset has known issues, requiring users to consult an external quality assessment website for details.
• Sources conflict on update timestamps, with some showing a last updated date of 2026-04-10 (a future date) and others showing none.

Provenance

Source

LPCLOUD (NASA's Land Processes Distributed Active Archive Center)

Collection Method

Satellite remote sensing via the Aqua MODIS instrument, processed into a Level 3 gridded product.

Freshness

2026-04-10 00:51:17.354565

Geography

Global coverage on a sinusoidal (SIN) grid projection.