A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions

Obtaining precise continuous measurements of water vapor isotopic composition in dry places (polar or high-altitude regions) is an important challenge. The current limitation is the strong influence of humidity on the measured water isotopic composition by laser spectroscopy instruments for low humi...

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Published in:Atmospheric Measurement Techniques
Main Authors: C. Leroy-Dos Santos, M. Casado, F. Prié, O. Jossoud, E. Kerstel, M. Farradèche, S. Kassi, E. Fourré, A. Landais
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
Online Access:https://doi.org/10.5194/amt-14-2907-2021
https://doaj.org/article/d8dddd979a804861b8cc985d753d10ad
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spelling ftdoajarticles:oai:doaj.org/article:d8dddd979a804861b8cc985d753d10ad 2023-05-15T13:58:59+02:00 A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions C. Leroy-Dos Santos M. Casado F. Prié O. Jossoud E. Kerstel M. Farradèche S. Kassi E. Fourré A. Landais 2021-04-01T00:00:00Z https://doi.org/10.5194/amt-14-2907-2021 https://doaj.org/article/d8dddd979a804861b8cc985d753d10ad EN eng Copernicus Publications https://amt.copernicus.org/articles/14/2907/2021/amt-14-2907-2021.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-14-2907-2021 1867-1381 1867-8548 https://doaj.org/article/d8dddd979a804861b8cc985d753d10ad Atmospheric Measurement Techniques, Vol 14, Pp 2907-2918 (2021) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2021 ftdoajarticles https://doi.org/10.5194/amt-14-2907-2021 2022-12-31T04:07:09Z Obtaining precise continuous measurements of water vapor isotopic composition in dry places (polar or high-altitude regions) is an important challenge. The current limitation is the strong influence of humidity on the measured water isotopic composition by laser spectroscopy instruments for low humidity levels (below 3000 ppmv). This problem is addressed by determining the relationships between humidity and measured δ 18 O and δ D of known water standards. Here, we present the development of a robust field instrument able to generate water vapor, down to 70 ppmv, at very stable humidity levels (average 1 σ lower than 10 ppmv). This instrument, operated by a Raspberry interface, can be coupled to a commercial laser spectroscopy instrument. We checked the stability of the system as well as its accuracy when expressing the measured isotopic composition of water vapor on the VSMOW–SLAP (Vienna Standard Mean Ocean Water – Standard Light Antarctic Precipitation) scale. It proved to be highly stable during autonomous operation over more than 1 year at the East Antarctic Concordia and Dumont d'Urville stations. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) Atmospheric Measurement Techniques 14 4 2907 2918
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
spellingShingle Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
C. Leroy-Dos Santos
M. Casado
F. Prié
O. Jossoud
E. Kerstel
M. Farradèche
S. Kassi
E. Fourré
A. Landais
A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
topic_facet Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
description Obtaining precise continuous measurements of water vapor isotopic composition in dry places (polar or high-altitude regions) is an important challenge. The current limitation is the strong influence of humidity on the measured water isotopic composition by laser spectroscopy instruments for low humidity levels (below 3000 ppmv). This problem is addressed by determining the relationships between humidity and measured δ 18 O and δ D of known water standards. Here, we present the development of a robust field instrument able to generate water vapor, down to 70 ppmv, at very stable humidity levels (average 1 σ lower than 10 ppmv). This instrument, operated by a Raspberry interface, can be coupled to a commercial laser spectroscopy instrument. We checked the stability of the system as well as its accuracy when expressing the measured isotopic composition of water vapor on the VSMOW–SLAP (Vienna Standard Mean Ocean Water – Standard Light Antarctic Precipitation) scale. It proved to be highly stable during autonomous operation over more than 1 year at the East Antarctic Concordia and Dumont d'Urville stations.
format Article in Journal/Newspaper
author C. Leroy-Dos Santos
M. Casado
F. Prié
O. Jossoud
E. Kerstel
M. Farradèche
S. Kassi
E. Fourré
A. Landais
author_facet C. Leroy-Dos Santos
M. Casado
F. Prié
O. Jossoud
E. Kerstel
M. Farradèche
S. Kassi
E. Fourré
A. Landais
author_sort C. Leroy-Dos Santos
title A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
title_short A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
title_full A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
title_fullStr A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
title_full_unstemmed A dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
title_sort dedicated robust instrument for water vapor generation at low humidity for use with a laser water isotope analyzer in cold and dry polar regions
publisher Copernicus Publications
publishDate 2021
url https://doi.org/10.5194/amt-14-2907-2021
https://doaj.org/article/d8dddd979a804861b8cc985d753d10ad
long_lat ENVELOPE(140.017,140.017,-66.667,-66.667)
ENVELOPE(140.013,140.013,-66.667,-66.667)
geographic Antarctic
Dumont d'Urville
Dumont-d'Urville
geographic_facet Antarctic
Dumont d'Urville
Dumont-d'Urville
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_source Atmospheric Measurement Techniques, Vol 14, Pp 2907-2918 (2021)
op_relation https://amt.copernicus.org/articles/14/2907/2021/amt-14-2907-2021.pdf
https://doaj.org/toc/1867-1381
https://doaj.org/toc/1867-8548
doi:10.5194/amt-14-2907-2021
1867-1381
1867-8548
https://doaj.org/article/d8dddd979a804861b8cc985d753d10ad
op_doi https://doi.org/10.5194/amt-14-2907-2021
container_title Atmospheric Measurement Techniques
container_volume 14
container_issue 4
container_start_page 2907
op_container_end_page 2918
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