Sentinel-5P: TROPOMI UV Aerosol Index Satellite Data

Starting from August 6, 2019, this collection provides high-resolution atmospheric measurements from the Sentinel-5P satellite's TROPOMI instrument. The mission is a joint initiative between the European Space Agency and the Kingdom of the Netherlands, designed to measure atmospheric components like ozone, NO2, and aerosols. The data includes the UV Aerosol Index product, calculated from top-of-atmosphere reflectance in the ultraviolet spectral range.

Use Cases

• Monitoring global aerosol pollution levels based on the UV Aerosol Index product.
• Analyzing atmospheric composition trends for gases like NO2, SO2, and CO mentioned in the mission description.
• Validating and improving climate models using high spatial and spectral resolution satellite observations.
• Tracking the dispersion of volcanic ash or wildfire smoke plumes using aerosol data.

Strengths

• Data is collected by a dedicated satellite instrument (TROPOMI) covering ultraviolet, near infrared, and shortwave infrared wavelengths.
• Provides high spatial resolution measurements, approximately 5.5 km at nadir from August 2019 onward.
• The dataset is openly licensed under CC-BY-4.0, facilitating reuse and redistribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML projects.
• Description metadata is limited; actual data quality and structure require manual inspection after download.

Provenance

Source

European Space Agency (ESA) and the Kingdom of the Netherlands via the Copernicus Sentinel-5 Precursor mission.

Collection Method

Satellite remote sensing via the TROPOMI hyperspectral spectrometer.

Time Range

From August 6, 2019 onward (with a separate collection for data before this date).

Freshness

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Geography

Global, from a nadir-viewing satellite instrument.