NO₂ absorption cross sections at different temperatures and pressures

This dataset contains laboratory absorption cross sections of nitrogen dioxide (NO₂) measured over the visible and near-infrared spectral regions at different temperatures and pressures.

The dataset includes several series of measurements:

Files_96

Spectral resolution: 2 cm⁻¹
Temperature: 294 K
Path length: 5 cm
Pressure: 7–50 Torr, including measurements with 1 atm O₂
Spectral range: 10000–42000 cm⁻¹ (approximately 240–1000 nm)

Files_97

Spectral resolution: 2 cm⁻¹
Temperatures: 220 and 294 K
Path lengths: 20 and 60 m
Pressure: 0.007–2 Torr
Spectral range: 10000–42000 cm⁻¹ (approximately 240–1000 nm)

IR and VIS files

Spectral resolution: 0.05 cm⁻¹ in the infrared and 0.1 cm⁻¹ in the visible
Temperatures: 220, 240 and 294 K
Path length: 60 m
Pressure: specified in the individual file descriptions
Spectral ranges: 10800–15100 cm⁻¹ (IR) and 13800–26000 cm⁻¹ (VIS)
Instrument: Bruker 120M high-resolution Fourier transform spectrometer

General comments

  • Absorption cross sections are provided in cm² molecule⁻¹. Missing values are indicated by -999.
  • Wavenumbers originally measured in air were converted to vacuum wavenumbers using Edlén's formula for 15 °C and 101325 Pa.
  • All data are provided as space-delimited ASCII files with .dat or .asc extensions.
  • The file names use the following identifiers: R indicates measurements at room temperature, C measurements at 220 K, and P files containing pressure-dependent data.

Data and Resources

Tags

Cite this as (APA format)

10.18758/6b80spv8

Users of this DOI are kindly encouraged to contact the author(s) for help and cooperation towards further successful utilisation.

Author(s)
Principal

Robert, Séverineorcid, Royal Belgian Institute for Space Aeronomy
Other(s)

Vandaele, Ann Carineorcid, Royal Belgian Institute for Space Aeronomy; Hermans, Christianorcid, Royal Belgian Institute for Space Aeronomy;

Contact data-contact of Royal Belgian Institute for Space Aeronomy

Technical info
Is referenced by

Temporal features
Starting

1995
Ending

1995

Additional info
Repository homepage

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

September 15, 2026
Created

July 3, 2026

Spatial features

No spatial information