# Sentinel-5P TROPOMI L2 Nitrogen Dioxide (NO2)
*data products*

## Specifications
- **level**: L2
- **distributor**: esa
- **access endpoint**: https://dataspace.copernicus.eu/explore-data/data-collections/sentinel-data/sentinel-5p
- **access model**: open
- **licence**: Copernicus Sentinel open access
- **cost model summary**: Free and open via Copernicus Data Space Ecosystem and NASA GES DISC
- **primary data portal url**: https://sentinels.copernicus.eu/web/sentinel/data-products/-/asset_publisher/fp37fc19FN8F/content/sentinel-5-precursor-level-2-nitrogen-dioxide
- **deployment context**: orbital
- **entity type**: data_product
- **last verified date**: 2026-05-31
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: esa
- **attributes**: {"level":"L2","distributor":"esa","access_endpoint":"https://dataspace.copernicus.eu/explore-data/data-collections/sentinel-data/sentinel-5p","access_model":"open","licence":"Copernicus Sentinel open access","cost_model_summary":"Free and open via Copernicus Data Space Ecosystem and NASA GES DISC","primary_data_portal_url":"https://sentinels.copernicus.eu/web/sentinel/data-products/-/asset_publisher/fp37fc19FN8F/content/sentinel-5-precursor-level-2-nitrogen-dioxide","deployment_context":"orbital"}

## Editorial
Sentinel-5P TROPOMI L2 Nitrogen Dioxide (NO2) provides tropospheric and total vertical column NO2 retrieved by Differential Optical Absorption Spectroscopy (DOAS) in the UV-VIS spectral range. The algorithm separates stratospheric and tropospheric components using improved air-mass factors.[^s5p-no2-product-page]

Spatial resolution improved on 2019-08-06: pixel size changed from 3.5 x 7 km (across x along track) to 3.5 x 5.5 km. Both resolutions are present in the archive.[^s5p-no2-product-page] Swath width is 2600 km, enabling daily global coverage. The product is available in both NRTI (near-real-time) and OFFL (offline scientific) processing modes.[^s5p-no2-product-page]

The V2 dataset covers 2021-07-01 onward; a reprocessed record extends from 2018-04-30. The dataset DOI is 10.5270/S5P-9bnp8q8.[^s5p-no2-product-page]

Access is free and open via the Copernicus Data Space Ecosystem and NASA GES DISC.[^s5p-dataspace-no2]

## Compositional position
- air-quality (topics) --[topic_capabilities]--> Sentinel-5P TROPOMI L2 Nitrogen Dioxide (NO2)

## Sources
- [s5p-no2-product-page] | Sentinel-5P TROPOMI L2 NO2 product page, ESA | https://sentinels.copernicus.eu/web/sentinel/data-products/-/asset_publisher/fp37fc19FN8F/content/sentinel-5-precursor-level-2-nitrogen-dioxide | tier=operator-datasheet | accessed=2026-05-31
- [s5p-dataspace-no2] | Copernicus Data Space Ecosystem - Sentinel-5P access | https://dataspace.copernicus.eu/explore-data/data-collections/sentinel-data/sentinel-5p | tier=operator-engineering | accessed=2026-05-31

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Source: https://eo-atlas.org/data_products/tropomi-l2-no2
Maintainer: SpectraWorks B.V. (CC-BY 4.0)