MODIS/Aqua satellite data provides daily global aerosol optical thickness measurements at a 0.05-degree spatial resolution. The product is generated by NASA's LANCEMODIS team from MYD09IDN, MYD09IDT, and MYD09IDS source data, compositing orbits based on minimum band 3 (459-479 nm) values after filtering for clouds and high solar zenith angles. It is a Level 3 global product in a Plate Carree projection.
Use Cases
- Analyze daily aerosol optical thickness patterns globally using the 0.05-degree gridded data.
- Track aerosol transport events by examining time-series changes in the composited band 3 values.
- Validate atmospheric models by comparing simulated aerosol concentrations with satellite-derived optical thickness.
- Study aerosol-cloud interactions by correlating aerosol data with pixels flagged for cloud exclusion.
- Monitor regional air quality trends using the near-real-time daily global product.
Strengths
- Global spatial coverage at a consistent 0.05-degree resolution.
- Daily temporal resolution enabling analysis of short-term aerosol events.
- Data composited from multiple source products (MYD09IDN, IDT, IDS) for each orbit.
- Pixels are filtered to exclude clouds and high solar zenith angles.
Limitations
- Specific row count, column details, and sample size are unknown.
- The temporal coverage and time range of the dataset are unspecified.
- The exact data format and file size are not provided.
Provenance
- Source
- NASA LANCEMODIS, derived from MODIS/Aqua satellite instruments.
- Collection Method
- Derived from MYD09IDN, MYD09IDT, and MYD09IDS source data for each orbit, composited based on minimum band 3 values after filtering.
- Freshness
- Near real-time (NRT) product.
- Geography
- Global coverage.