NASA JPSS Project: Global Daily and Monthly Aerosol Optical Depth from VIIRS and OMPS

Global satellite data provides daily and monthly Aerosol Optical Depth (AOD) measurements at 0.1 x 0.1 degree resolution. The data is generated by NASA's JPSS project, combining Deep Blue and Dark Target algorithms from the VIIRS instrument on the NOAA-20 satellite, with records from February 2018 to the present. It also includes OMPS-N21 Limb-Profiler radiance data for the wavelength region from 280 nm to 1000 nm.

Use Cases

• Modeling global atmospheric aerosol transport based on daily AOD measurements.
• Analyzing long-term air quality trends based on monthly aggregated AOD data.
• Filtering satellite data for quality based on provided standard deviation and pixel count statistics.
• Studiating ozone and atmospheric profiles using the complementary OMPS-N21 radiance data.

Strengths

• High spatial resolution of 0.1 x 0.1 degrees for global coverage.
• Provides data from multiple algorithms (Deep Blue, Dark Target, combined) for user flexibility.
• Includes quality metrics like standard deviation, pixel count, and average sensor zenith angle.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

NASA JPSS Project, Visible Infrared Imaging Radiometer Suite (VIIRS) on NOAA-20 satellite, Ozone Mapping and Profiling Suite (OMPS) on NOAA-21.

Collection Method

Satellite remote sensing data processed using Deep Blue and Dark Target algorithms.

Time Range

Daily and monthly files from 2018-02-17 to present.

Freshness

Data ranges from 2018 to the present; update frequency is not specified.

Geography

Global