Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases
The development of increasingly sensitive and robust instruments and new methodologies are essential to improve our understanding of the Earth’s climate and air pollution. In this context, Dual-Comb spectroscopy (DCS) has been successfully demonstrated as a remote laser-based instrument to probe inf...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-10-01
|
Series: | Remote Sensing |
Subjects: | |
Online Access: | https://www.mdpi.com/2072-4292/12/20/3444 |
id |
doaj-1c77b4f90d1b46cda1753039d0bde900 |
---|---|
record_format |
Article |
spelling |
doaj-1c77b4f90d1b46cda1753039d0bde9002020-11-25T03:43:51ZengMDPI AGRemote Sensing2072-42922020-10-01123444344410.3390/rs12203444Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace GasesSandrine Galtier0Clément Pivard1Patrick Rairoux2Institut Lumière Matière, Université Claude Bernard Lyon 1, University of Lyon, CNRS, F-69622 Villeurbanne, FranceInstitut Lumière Matière, Université Claude Bernard Lyon 1, University of Lyon, CNRS, F-69622 Villeurbanne, FranceInstitut Lumière Matière, Université Claude Bernard Lyon 1, University of Lyon, CNRS, F-69622 Villeurbanne, FranceThe development of increasingly sensitive and robust instruments and new methodologies are essential to improve our understanding of the Earth’s climate and air pollution. In this context, Dual-Comb spectroscopy (DCS) has been successfully demonstrated as a remote laser-based instrument to probe infrared absorbing species such as greenhouse gases. We present here a study of the sensitivity of Dual-Comb spectroscopy to remotely monitor atmospheric gases focusing on molecules that absorb in the ultraviolet domain, where the most reactive molecules of the atmosphere (OH, HONO, BrO...) have their highest absorption cross-sections. We assess the achievable signal-to-noise ratio (SNR) and the corresponding minimum absorption sensitivity of DCS in the ultraviolet range. We propose a potential light source for remote sensing UV-DCS and discuss the degree of immunity of UV-DCS to atmospheric turbulences. We show that the characteristics of the currently available UV sources are compatible with the unambiguous identification of UV absorbing gases by UV-DCS.https://www.mdpi.com/2072-4292/12/20/3444remote-sensingdual-comb spectroscopyUV light sourceair quality monitoringatmospheric pollutionLIDAR |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sandrine Galtier Clément Pivard Patrick Rairoux |
spellingShingle |
Sandrine Galtier Clément Pivard Patrick Rairoux Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases Remote Sensing remote-sensing dual-comb spectroscopy UV light source air quality monitoring atmospheric pollution LIDAR |
author_facet |
Sandrine Galtier Clément Pivard Patrick Rairoux |
author_sort |
Sandrine Galtier |
title |
Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases |
title_short |
Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases |
title_full |
Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases |
title_fullStr |
Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases |
title_full_unstemmed |
Towards DCS in the UV Spectral Range for Remote Sensing of Atmospheric Trace Gases |
title_sort |
towards dcs in the uv spectral range for remote sensing of atmospheric trace gases |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2020-10-01 |
description |
The development of increasingly sensitive and robust instruments and new methodologies are essential to improve our understanding of the Earth’s climate and air pollution. In this context, Dual-Comb spectroscopy (DCS) has been successfully demonstrated as a remote laser-based instrument to probe infrared absorbing species such as greenhouse gases. We present here a study of the sensitivity of Dual-Comb spectroscopy to remotely monitor atmospheric gases focusing on molecules that absorb in the ultraviolet domain, where the most reactive molecules of the atmosphere (OH, HONO, BrO...) have their highest absorption cross-sections. We assess the achievable signal-to-noise ratio (SNR) and the corresponding minimum absorption sensitivity of DCS in the ultraviolet range. We propose a potential light source for remote sensing UV-DCS and discuss the degree of immunity of UV-DCS to atmospheric turbulences. We show that the characteristics of the currently available UV sources are compatible with the unambiguous identification of UV absorbing gases by UV-DCS. |
topic |
remote-sensing dual-comb spectroscopy UV light source air quality monitoring atmospheric pollution LIDAR |
url |
https://www.mdpi.com/2072-4292/12/20/3444 |
work_keys_str_mv |
AT sandrinegaltier towardsdcsintheuvspectralrangeforremotesensingofatmospherictracegases AT clementpivard towardsdcsintheuvspectralrangeforremotesensingofatmospherictracegases AT patrickrairoux towardsdcsintheuvspectralrangeforremotesensingofatmospherictracegases |
_version_ |
1724517897112387584 |