S5P_L2__NO2____HiR_NRT: Near-Real-Time Satellite Tropospheric Nitrogen Dioxide

Sentinel-5P TROPOMI satellite data provides near-real-time measurements of tropospheric nitrogen dioxide (NO2) concentrations at a spatial resolution of 5.5km x 3.5km. The dataset is processed using the DOMINO approach and is available within three hours of satellite measurement for rapid assessment. Each data file contains one orbit of information, is stored in netCDF4 format, and is approximately 60 MB in size.

Use Cases

• Rapid assessment of NO2 pollution plumes based on near-real-time data availability within three hours.
• Monitoring regional air quality trends based on high spatial resolution (5.5km x 3.5km) satellite observations.
• Initial validation of atmospheric chemistry transport models based on the DOMINO retrieval algorithm.
• Short-term analysis of emission changes from point sources based on tropospheric column data.

Strengths

• Provides data within three hours of satellite measurement, enabling rapid response.
• Offers high spatial resolution (5.5km x 3.5km) for tropospheric NO2 from the TROPOMI instrument.
• Based on a mature retrieval algorithm (DOMINO/QA4ECV) for separating stratospheric and tropospheric contributions.

Limitations

• Data is only archived for up to ten days; long-term analysis requires the offline product.
• Specific column names and data schema are not provided in the available metadata.
• Conflicting license information exists between sources ('other-license-specified' and 'None').

Provenance

Source

European Space Agency (ESA) and the Kingdom of the Netherlands via the Copernicus Sentinel-5P mission, hosted by NASA GES DISC.

Collection Method

Satellite remote sensing via the TROPOMI hyperspectral spectrometer.

Time Range

Near-real-time, continuously updated.

Freshness

2026-04-10 19:32:25.510667

Geography

Global coverage from the Sentinel-5P satellite's sun-synchronous orbit.