MODIS/Aqua Surface Reflectance Daily L2G Global 250m SIN Grid V061

Version 6.1 data provides daily global surface spectral reflectance estimates from the Aqua MODIS satellite at 250-meter resolution for bands 1 and 2, corrected for atmospheric gases, aerosols, and Rayleigh scattering. The product includes a Quality Assurance layer and five observation layers and is intended for use with the 500-meter MYD09GA product for quality and viewing geometry information. Known issues include non-functional detectors in Band 6, requiring users to consult detector flags and the MODIS Characterization Support Team website.

Use Cases

• Monitoring vegetation health and land cover change based on surface spectral reflectance.
• Assessing atmospheric correction algorithms using the provided QA and observation layers.
• Conducting time-series analysis of surface radiative properties at a global scale.

Strengths

• Atmospherically corrected surface reflectance data enhances usability for land surface studies.
• Cross-platform presence on AWS Open Data, NASA Earthdata, and Data.gov signals established importance and accessibility.
• Version 6.1 includes calibration improvements such as polarization correction and RVS approach updates.

Limitations

• Metadata completeness is low; specific column names, row counts, and dataset size are not provided on any platform.
• A known hardware limitation exists where a majority of Band 6 detectors are non-functional, requiring user mitigation.
• License information conflicts between sources, with AWS reporting CC-BY-4.0 and Data.gov reporting 'other-license-specified'.

Provenance

Source

NASA/MODIS via LP DAAC

Collection Method

Satellite remote sensing from the Aqua spacecraft.

Time Range

Daily coverage from the Aqua MODIS mission operational period.

Freshness

2026-04-10 00:51:42.221497

Geography

Global