Aqua MODIS Global Binned Remote Sensing Reflectance Data

2022.0 version data provides remote sensing reflectance (RRS) measurements, the foundational observable for deriving ocean color products. The dataset is produced by NASA's OB_CLOUD organization using the Aqua MODIS satellite sensor. It supports algorithm development and validation for water-quality and ecosystem applications.

Use Cases

• Retrieve chlorophyll-a concentration (chlor_a) from Rrs_443 and Rrs_555 band values.
• Calculate the diffuse attenuation coefficient at 490 nm (Kd_490) using Rrs_490 and other RRS bands.
• Derive inherent optical properties (IOPs) such as absorption and backscattering from multi-spectral RRS data (e.g., Rrs_412, Rrs_443).
• Monitor coastal water quality by analyzing time-series of RRS values in specific bands for turbidity or harmful algal bloom detection.
• Apply and validate new bio-optical algorithms by using the per-pixel Rrs_λ values as core input data.

Strengths

• Global spatial coverage from the Aqua MODIS satellite sensor.
• Includes per-file quality flags for land, cloud, sun glint, and high aerosol to aid data filtering.
• Version 2022.0 indicates a processed and consistent data release.

Limitations

• Specific row count, file size, and temporal coverage are unknown.
• Data quality is noted to be lower in optically complex coastal and inland waters.
• Requires user review of quality flags and mission documentation for correct application.

Provenance

Source

NASA OB_CLOUD, Aqua MODIS satellite.

Collection Method

Satellite remote sensing measurements processed to Level-3 binned geophysical data.

Time Range

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Freshness

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Geography

Global