Total nitrogen dioxide at the Arctic Polar Circle since 1990
International audience Daily ground-based NO2 column measurements have been conducted with UV-visible SAOZ diode-array spectrometers at Sodankyla in northern Finland since January 1990 and at 3 additional stations during EASOE. Inspection of the data indicates: a total NO2 reduction by 30% by the Pi...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645/document https://hal-insu.archives-ouvertes.fr/insu-03527645/file/ark%20_67375_WNG-4Q4WRF8G-T.pdf https://doi.org/10.1029/93GL01783 |
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ftccsdartic:oai:HAL:insu-03527645v1 2023-06-11T04:09:33+02:00 Total nitrogen dioxide at the Arctic Polar Circle since 1990 Goutail, Florence Pommereau, Jean-Pierre Sarkissian, Alain Kyrö, Esko Dorokhov, Valery Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Sodankylä Geophysical Observatory University of Oulu Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) 1994-06-22 https://hal-insu.archives-ouvertes.fr/insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645/document https://hal-insu.archives-ouvertes.fr/insu-03527645/file/ark%20_67375_WNG-4Q4WRF8G-T.pdf https://doi.org/10.1029/93GL01783 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/93GL01783 insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645/document https://hal-insu.archives-ouvertes.fr/insu-03527645/file/ark%20_67375_WNG-4Q4WRF8G-T.pdf doi:10.1029/93GL01783 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03527645 Geophysical Research Letters, 1994, 21 (13), pp.1371-1374. ⟨10.1029/93GL01783⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 1994 ftccsdartic https://doi.org/10.1029/93GL01783 2023-05-07T00:00:18Z International audience Daily ground-based NO2 column measurements have been conducted with UV-visible SAOZ diode-array spectrometers at Sodankyla in northern Finland since January 1990 and at 3 additional stations during EASOE. Inspection of the data indicates: a total NO2 reduction by 30% by the Pinatubo aerosol in spring and summer 1992 compared to the previous years; a poor correlation in winter with potential vorticity indicative of motion of the vortex and of advection of air from mid-latitude, frequent during EASOE; an absence of significant global denitrification by sedimentation of nitric acid on PSC particles inside the vortex; and a high correlation between total NO2 and 30–50 hPa temperature. The latter is unexpected in winter 1991–92, since most of NOx (NO + NO2 + ClONO2 + 2N2O5) at the altitude of the aerosol layer should have been converted into liquid nitric acid. This is expected to revert only slowly to NOx at high latitude in winter. The correlation suggests a temperature dependent saturation of the aerosol water / sulfuric acid droplets and / or a temperature dependent mechanism of restitution of NOx to the gas phase. Article in Journal/Newspaper Arctic Northern Finland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Geophysical Research Letters 21 13 1371 1374 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Goutail, Florence Pommereau, Jean-Pierre Sarkissian, Alain Kyrö, Esko Dorokhov, Valery Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Daily ground-based NO2 column measurements have been conducted with UV-visible SAOZ diode-array spectrometers at Sodankyla in northern Finland since January 1990 and at 3 additional stations during EASOE. Inspection of the data indicates: a total NO2 reduction by 30% by the Pinatubo aerosol in spring and summer 1992 compared to the previous years; a poor correlation in winter with potential vorticity indicative of motion of the vortex and of advection of air from mid-latitude, frequent during EASOE; an absence of significant global denitrification by sedimentation of nitric acid on PSC particles inside the vortex; and a high correlation between total NO2 and 30–50 hPa temperature. The latter is unexpected in winter 1991–92, since most of NOx (NO + NO2 + ClONO2 + 2N2O5) at the altitude of the aerosol layer should have been converted into liquid nitric acid. This is expected to revert only slowly to NOx at high latitude in winter. The correlation suggests a temperature dependent saturation of the aerosol water / sulfuric acid droplets and / or a temperature dependent mechanism of restitution of NOx to the gas phase. |
author2 |
Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Sodankylä Geophysical Observatory University of Oulu Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) |
format |
Article in Journal/Newspaper |
author |
Goutail, Florence Pommereau, Jean-Pierre Sarkissian, Alain Kyrö, Esko Dorokhov, Valery |
author_facet |
Goutail, Florence Pommereau, Jean-Pierre Sarkissian, Alain Kyrö, Esko Dorokhov, Valery |
author_sort |
Goutail, Florence |
title |
Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
title_short |
Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
title_full |
Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
title_fullStr |
Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
title_full_unstemmed |
Total nitrogen dioxide at the Arctic Polar Circle since 1990 |
title_sort |
total nitrogen dioxide at the arctic polar circle since 1990 |
publisher |
HAL CCSD |
publishDate |
1994 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645/document https://hal-insu.archives-ouvertes.fr/insu-03527645/file/ark%20_67375_WNG-4Q4WRF8G-T.pdf https://doi.org/10.1029/93GL01783 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Northern Finland |
genre_facet |
Arctic Northern Finland |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03527645 Geophysical Research Letters, 1994, 21 (13), pp.1371-1374. ⟨10.1029/93GL01783⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/93GL01783 insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645 https://hal-insu.archives-ouvertes.fr/insu-03527645/document https://hal-insu.archives-ouvertes.fr/insu-03527645/file/ark%20_67375_WNG-4Q4WRF8G-T.pdf doi:10.1029/93GL01783 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/93GL01783 |
container_title |
Geophysical Research Letters |
container_volume |
21 |
container_issue |
13 |
container_start_page |
1371 |
op_container_end_page |
1374 |
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1768383491655860224 |