TROPOMI nitrous acid columns

This dataset provides nitrous acid (HONO) vertical columns retrieved from the S5p/TROPOMI measurements and created in the context of the ESA DINAR project.

The DINAR (Development and Interpretation of Improved Nitrous Acid Retrievals) activity is a project funded by the European Space Agency (ESA) under the ATMOSPHERE SCIENCE CLUSTER - RESEARCH OPPORTUNITIES 2 - EXPRO+, which aims at further exploiting the capability of satellite instruments to measure nitrous acid (HONO), and advancing our understanding of HONO in the atmosphere.

The DINAR project, proposed by the Royal Belgian Institute for Space Aeronomy (BIRA-IASB) and the Université Libre de Bruxelles (ULB), was kicked-off in May 2022 and lasted for two years. The data presented here builds upon the first space observations of HONO in biomass burning plumes in the ultraviolet (Theys et al., 2020).

The dataset provides L2 data of HONO vertical columns and a range of auxiliary variables.

Size: 1.4GB/day

Data and Resources

Tags

Cite this as (APA format)

Theys, N. (2024). TROPOMI nitrous acid columns (Version V23) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/V4W3B5ZT
Retrieved: 18:37 22 Jan 2026 (UTC)
Users of this DOI are kindly encouraged to contact the author(s) for help and cooperation towards further successful utilisation.

Author(s)
Principal

Theys, Nicolasorcid, Royal Belgian Institute for Space Aeronomy
Other(s)

/
Contact data-contact of Royal Belgian Institute for Space Aeronomy

Technical info
Documentation

https://hono.aeronomie.be/index.php/documents

Temporal features
Starting

May 1, 2018
Ending

August 31, 2024
Temporal resolution

P1D
Updating frequency

ANNUAL_2

Additional info
Funding details

ESA EXPRO+
Repository homepage

https://data.aeronomie.be/dataset/
Last Updated

January 31, 2025
Created

October 31, 2024

Spatial features