VIIRS/JPSS2 Surface Reflectance: Daily Global Land Data at 0.05-Degree Resolution

Daily global land surface reflectance data from the NOAA-21 VIIRS sensor, processed by LPCLOUD. The dataset provides corrected estimates for 12 reflectance bands and 5 brightness temperature bands at a 0.05-degree (~5,600 meter) resolution, formatted for climate simulation models. It includes ancillary information layers such as sensor and solar angles, quality flags, and time of day.

Use Cases

• Modeling land surface albedo for climate simulations based on the 12 reflectance bands.
• Analyzing daily land surface changes using the weighted average of best quality observations.
• Studying atmospheric aerosol effects by leveraging data corrected for molecular gases and aerosols.
• Incorporating angular information for radiative transfer models using the provided sensor and solar zenith angles.

Strengths

• Data is atmospherically corrected for effects of gases like ozone and water vapor, and aerosols.
• Provides data for 12 reflectance bands and 5 brightness temperature bands at a consistent 0.05-degree resolution.
• Includes ancillary layers for quality assessment, geometry, and timing.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Known data issues exist and require consultation of an external quality assessment website.

Provenance

Source

NOAA-21 VIIRS sensor, processed by LPCLOUD and distributed via NASA Earthdata.

Collection Method

Satellite remote sensing, with atmospheric correction and weighted averaging of best quality observations.

Time Range

Daily coverage, but specific date range is unknown.

Freshness

Daily update frequency is suggested by the product name, but last update date is unknown.

Geography

Global coverage at 0.05-degree Climate Modeling Grid (CMG) resolution.