Global distribution of ozone vertical profiles retrieved from NOMAD-UVIS/TGO, presented in Piccialli et al. 2023

This dataset is presented in "Ozone observed by TGO/NOMAD-UVIS solar occultation: an inter-comparison of three retrieval methods" by A. Piccialli, A.C. Vandaele, et al. 2023.: https://doi.org/10.1029/2022EA002429)

Each file name indicates the retrieval method:

  • FOEM: Full occultation Optimal Estimation Method
  • OP: Onion Peeling
  • DOP: Direct Onion Peeling

Files are in the HDF5 format. Each file contains:

Geometry:

  • LST = local solar time [hrs]
  • Ls = solar longitude [degree]
  • lat = latitude [degree]
  • lon = longitude [degree]
  • orbit = file name of each occultation
  • day = day of observation
  • month = month of observation
  • year = year of observation

Science

  • For each entry: [number of columns = number of occultations analyzed, number of rows = 600 (altitude grid)]
  • Nd_O3 = ozone number density [cm-3]
  • Nd_O3_Err = error on ozone number density [cm-3]
  • z = altitude above aeroid [km]

Filtering (present only if relevant to the method):

  • DoF = Degree of Freedom
  • DL = detection limit [cm-3]
  • chi2_O3 = chi2 of the retrieval including ozone
  • chi2_no_O3 = chi2 of the retrieval without ozone

The filtering criteria Delta_chi2 described in our paper is derived as:

  • Delta_chi2 = chi2_no_O3/chi2_O3

Data and Resources

Tags

Cite this as (APA format)

Piccialli, A., & Vandaele, A. C. (2022). Global distribution of ozone vertical profiles retrieved from NOMAD-UVIS/TGO, presented in Piccialli et al. 2023 (Version 1) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/71021079
Retrieved: 16:58 12 Feb 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

Piccialli, Ariannaorcid, Royal Belgian Institute for Space Aeronomy
Other(s)

Vandaele, Ann Carineorcid, Royal Belgian Institute for Space Aeronomy;
Contact data-contact of Royal Belgian Institute for Space Aeronomy

Technical info
Is referenced by

https://doi.org/10.1029/2022EA002429

Temporal features
Starting

04/2018
Ending

11/2021

Additional info
Funding details

  • The NOMAD experiment is led by the Royal Belgian Institute for Space Aeronomy (IASB-BIRA), with Co-PI teams in the United Kingdom (Open University), Spain (IAA-CSIC) and Italy (INAF-IAPS).

  • JJLM acknowledges financial support from the State Agency for Research of the Spanish MCIU through the “Center of Excellence Severo Ochoa” award to the Instituto de Astrofísica de Andalucía (SEV-2017-0709) and by Grant PGC2018-101836-B-100 funded by MCIU/AEI/10.13039/501100011033 and by “ERDF A way of making Europe.”

  • The authors acknowledge funding from the UK Space Agency through Grants ST/V002295/1, ST/V005332/1, and ST/S00145X/1. AM acknowledges the support from the French Space Agency CNES.

  • This work was supported by the NASA's Mars Program Office under WBS 604796, “Participation in the TGO/NOMAD Investigation of Trace Gases on Mars.” The material was based upon the work supported by the NASA under award No. 80GSFC21M0002.

  • This project has received funding from the European Union's Horizon 2020 research and innovation programme under Grant agreement No 101004052.
Repository homepage

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

June 17, 2025
Created

April 25, 2022

Spatial features

No spatial information