Sentinel-5P TROPOMI: Tropospheric Nitrogen Dioxide Satellite Measurements

Sentinel-5P TROPOMI Tropospheric NO2 1-Orbit L2 data provides high spatial resolution measurements of nitrogen dioxide concentrations from the European Space Agency's Sentinel-5P satellite. The dataset is hosted by NASA's GES DISC and uses the DOMINO retrieval approach to separate stratospheric and tropospheric NO2 columns. It covers wavelengths from ultraviolet-visible to shortwave infrared and has been operational with its current high-resolution format since August 6, 2019.

Use Cases

• Monitoring regional air quality and pollution trends based on tropospheric NO2 column data.
• Validating and improving atmospheric chemistry transport models using high-resolution satellite observations.
• Analyzing the spatial distribution of NO2 emissions from urban and industrial sources.
• Studying the separation of stratospheric and tropospheric contributions to the total NO2 column.

Strengths

• Provides high spatial resolution measurements at approximately 5.5 km at nadir.
• Covers multiple spectral ranges (UV-VIS, NIR, SWIR) for comprehensive atmospheric sensing.
• Based on the established DOMINO retrieval approach and QA4ECV project developments.
• Data is hosted by NASA's GES DISC, a recognized authoritative source for Earth science data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

European Space Agency (ESA) and the Kingdom of the Netherlands, hosted by NASA GES DISC.

Collection Method

Satellite observations from the TROPOMI instrument on the Sentinel-5P spacecraft.

Time Range

Data available from August 6, 2019 onward.

Freshness

Last updated 2026-03-12 21:50:28.394122; freshness should be verified.

Geography

Global coverage from the satellite's 108-degree field-of-view nadir observations.