VNP04ANC: Daily Global Aerosol and Atmospheric Data at 0.05° Resolution

Global satellite data provides daily aerosol optical depth, air temperature, ozone, and water vapor measurements at a 0.05-degree Climate Modeling Grid resolution. This Level 3 product is derived from daytime VIIRS/NPP Level 2 observations, starting from January 5, 2018, and contains five science data layers in HDF5 format. It is specifically designed for use in climate simulation models.

Use Cases

• Modeling aerosol radiative forcing based on daily aerosol optical depth measurements.
• Analyzing correlations between atmospheric water vapor and air temperature from the gridded layers.
• Studying tropospheric ozone distribution for air quality assessments at a global scale.
• Incorporating weighted-average, best-quality daytime observations into climate simulation inputs.

Strengths

• Provides data at a consistent 0.05-degree global grid specifically for climate modeling.
• Contains five distinct science data layers (SDS) for aerosol and atmospheric variables.
• Data record has a defined start date (January 5, 2018) and is updated, with a last updated date of 2026-04-09 noted on one platform.

Limitations

• Column names and specific variable details are not provided in any source description.
• Conflicting metadata exists: file formats are listed as BIN and ISO in shared metadata, but descriptions specify HDF5.
• Row counts, file sizes, and detailed license terms are unavailable across all platforms.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived using a weighted average of best-quality daytime observations from the VIIRS/NPP Level 2 product (VNP04_L2).

Time Range

2018-01-05 to present

Freshness

2026-04 09 21:00:20.960467

Geography

Global