MODIS/Terra MOD09: Atmospherically Corrected Surface Reflectance at 250m, 500m, 1km

The MODIS/Terra MOD09 product provides atmospherically corrected surface spectral reflectance estimates for seven spectral bands, as measured by the Terra satellite. The data, produced by the National Aeronautics and Space Administration, is the input for generating several land products, including vegetation indices and snow/ice detection. The dataset was last updated on 2026-03-12.

Use Cases

• Calculate vegetation indices (VIs) based on surface reflectance in multiple spectral bands.
• Model the Bidirectional Reflectance Distribution Function (BRDF) based on corrected reflectance data.
• Detect thermal anomalies based on the input reflectance product.
• Monitor snow and ice cover based on spectral reflectance estimates.
• Estimate Fraction of Photosynthetically Active Radiation and Leaf Area Index (FPAR/LAI) based on surface reflectance inputs.

Strengths

• Data is atmospherically corrected to estimate 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 foundational input for several higher-level land products.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Computed from MODIS Level 1B land bands.

Time Range

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Freshness

Last updated 2026-03-12 23:44:41.958469; freshness should be verified.

Geography

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