MODIS/Aqua MYD09: Atmospherically Corrected Surface Reflectance at 250m-1km

The MODIS/Aqua MYD09 product provides atmospherically corrected surface spectral reflectance estimates for seven land bands, as measured by the Aqua satellite. This data is produced by the National Aeronautics and Space Administration and was last updated in March 2026. It serves as a foundational input for generating several higher-level land products.

Use Cases

• Calculate vegetation indices based on surface reflectance in the red and near-infrared bands.
• Model land surface Bidirectional Reflectance Distribution Function (BRDF) based on multi-band reflectance data.
• Detect thermal anomalies and monitor snow/ice cover based on corrected reflectance values.
• Estimate Fraction of Photosynthetically Active Radiation and Leaf Area Index (FPAR/LAI) for ecological studies.

Strengths

• Data is atmospherically corrected, providing an estimate of surface reflectance as measured at ground level.
• Covers seven specific spectral bands centered at 648 nm, 858 nm, 470 nm, 555 nm, 1240 nm, 1640 nm, and 2130 nm.
• Serves as the direct input for generating several standardized NASA land products.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial/temporal coverage for a specific download are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Computed from MODIS Level 1B land bands aboard the Aqua satellite.

Time Range

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Freshness

Last updated 2026-03-12 23:53:19.269330; freshness should be verified.

Geography

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