Aqua MODIS Daily Surface Reflectance for Climate Modeling

Daily global estimates of surface spectral reflectance from Aqua MODIS bands 1-7, resampled to a 5600-meter pixel resolution and corrected for atmospheric conditions. The MYD09CMG Version 6.1 product provides 25 layers, including reflectance, brightness temperature, and quality assurance bands, designed for a Climate Modeling Grid. It is produced by LPCLOUD.

Use Cases

• Analyze surface spectral reflectance trends from MODIS bands 1-7 for land cover change detection.
• Integrate brightness temperature data from thermal bands 20, 21, 31, and 32 into energy balance models.
• Filter data using Quality Assurance (QA) layers to identify reliable observations for climate studies.
• Use the 5600-meter Climate Modeling Grid (CMG) resolution for coarse-scale global climate simulations.
• Assess the impact of atmospheric corrections for gasses, aerosols, and Rayleigh scattering on reflectance values.

Strengths

• Provides 25 data layers including spectral reflectance, brightness temperature, and QA information.
• Data is atmospherically corrected for gasses, aerosols, and Rayleigh scattering to improve accuracy.
• Resampled to a consistent 5600-meter Climate Modeling Grid (CMG) resolution for model integration.

Limitations

• Contains a known striping anomaly in Band 5 due to a dead detector, affecting data accuracy.
• The 5600-meter pixel resolution is coarse, limiting analysis of fine-scale surface features.
• Specific temporal coverage, update frequency, and data volume details are not provided.

Provenance

Source

LPCLOUD via NASA Earthdata (MODIS/Aqua instrument).

Collection Method

Satellite remote sensing data from the Aqua MODIS instrument, processed and corrected.

Time Range

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Freshness

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Geography

Global coverage.