Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns
Balloon-borne measurements of H2O, CH4, and H-2 in January and March 2000 show clear evidence for dehydration inside the polar vortex. At 30-50 hPa, total hydrogen is reduced by approximately 0.5 ppmv. This phenomenon is apparent in all five in situ balloon observations of this period; therefore it...
Published in: | Journal of Geophysical Research |
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ftfzjuelichnvdb:oai:juser.fz-juelich.de:23763 2023-05-15T14:47:09+02:00 Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns Schiller, C. Bauer, R. Müller, M. Oltmans, S. Ovarlez, H. Ovarlez, J. Schreiner, J. Stroh, F. Voigt, C. Vömel, H. Cairo, F. Deshler, M. C. Dörnbrack, A. Elkins, J. Engel, A. Flentje, H. Larsen, N. Levin, I. DE 2002 https://juser.fz-juelich.de/record/23763 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-23763%22 eng eng Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD000463 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/hdl/2128/20887 info:eu-repo/semantics/altIdentifier/wos/WOS:000180466200080 info:eu-repo/semantics/altIdentifier/issn/0141-8637 https://juser.fz-juelich.de/record/23763 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-23763%22 info:eu-repo/semantics/openAccess Journal of Geophysical Research 107, D20 (2002). doi:10.1029/2001JD000463 info:eu-repo/classification/ddc/550 J water vapor total hydrogen Arctic stratosphere dehydration info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2002 ftfzjuelichnvdb https://doi.org/10.1029/2001JD000463 2022-07-14T10:44:39Z Balloon-borne measurements of H2O, CH4, and H-2 in January and March 2000 show clear evidence for dehydration inside the polar vortex. At 30-50 hPa, total hydrogen is reduced by approximately 0.5 ppmv. This phenomenon is apparent in all five in situ balloon observations of this period; therefore it is probable that dehydration occurred over extended regions and a long period of this winter which was characterized by a well-confined vortex and low stratospheric temperatures. At altitudes below 50 hPa, where dehydration was strongest in previous Arctic observations and in the austral spring, total hydrogen values (2.CH4 +H2O + H-2) were similar to those found in Arctic profiles from other years where there was no dehydration and to those found at midlatitudes. In some of the dehydrated air masses, small solid particles were found whose crystallization might be connected to the earlier formation of ice particles. Back trajectory calculations for the January observations indicate that the probed air masses had experienced temperatures below the ice frost point in a synoptic-scale cold region several days before the observations. Most likely, the air was dehydrated there. In addition, temperatures in these air masses dropped below ice saturation several hours prior to the observations in the lee of the Scandinavian mountain ridge. For the March measurements, no ice saturation was apparent in the recent history of the air masses, again indicating that dehydration in the Arctic winter 1999/2000 was not a local phenomenon. Article in Journal/Newspaper Arctic Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) Arctic Austral Journal of Geophysical Research 107 D20 |
institution |
Open Polar |
collection |
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
op_collection_id |
ftfzjuelichnvdb |
language |
English |
topic |
info:eu-repo/classification/ddc/550 J water vapor total hydrogen Arctic stratosphere dehydration |
spellingShingle |
info:eu-repo/classification/ddc/550 J water vapor total hydrogen Arctic stratosphere dehydration Schiller, C. Bauer, R. Müller, M. Oltmans, S. Ovarlez, H. Ovarlez, J. Schreiner, J. Stroh, F. Voigt, C. Vömel, H. Cairo, F. Deshler, M. C. Dörnbrack, A. Elkins, J. Engel, A. Flentje, H. Larsen, N. Levin, I. Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
topic_facet |
info:eu-repo/classification/ddc/550 J water vapor total hydrogen Arctic stratosphere dehydration |
description |
Balloon-borne measurements of H2O, CH4, and H-2 in January and March 2000 show clear evidence for dehydration inside the polar vortex. At 30-50 hPa, total hydrogen is reduced by approximately 0.5 ppmv. This phenomenon is apparent in all five in situ balloon observations of this period; therefore it is probable that dehydration occurred over extended regions and a long period of this winter which was characterized by a well-confined vortex and low stratospheric temperatures. At altitudes below 50 hPa, where dehydration was strongest in previous Arctic observations and in the austral spring, total hydrogen values (2.CH4 +H2O + H-2) were similar to those found in Arctic profiles from other years where there was no dehydration and to those found at midlatitudes. In some of the dehydrated air masses, small solid particles were found whose crystallization might be connected to the earlier formation of ice particles. Back trajectory calculations for the January observations indicate that the probed air masses had experienced temperatures below the ice frost point in a synoptic-scale cold region several days before the observations. Most likely, the air was dehydrated there. In addition, temperatures in these air masses dropped below ice saturation several hours prior to the observations in the lee of the Scandinavian mountain ridge. For the March measurements, no ice saturation was apparent in the recent history of the air masses, again indicating that dehydration in the Arctic winter 1999/2000 was not a local phenomenon. |
format |
Article in Journal/Newspaper |
author |
Schiller, C. Bauer, R. Müller, M. Oltmans, S. Ovarlez, H. Ovarlez, J. Schreiner, J. Stroh, F. Voigt, C. Vömel, H. Cairo, F. Deshler, M. C. Dörnbrack, A. Elkins, J. Engel, A. Flentje, H. Larsen, N. Levin, I. |
author_facet |
Schiller, C. Bauer, R. Müller, M. Oltmans, S. Ovarlez, H. Ovarlez, J. Schreiner, J. Stroh, F. Voigt, C. Vömel, H. Cairo, F. Deshler, M. C. Dörnbrack, A. Elkins, J. Engel, A. Flentje, H. Larsen, N. Levin, I. |
author_sort |
Schiller, C. |
title |
Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
title_short |
Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
title_full |
Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
title_fullStr |
Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
title_full_unstemmed |
Dehydration in the Arctic stratosphere during the THESEO 2000/SOLVE campaigns |
title_sort |
dehydration in the arctic stratosphere during the theseo 2000/solve campaigns |
publisher |
Union |
publishDate |
2002 |
url |
https://juser.fz-juelich.de/record/23763 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-23763%22 |
op_coverage |
DE |
geographic |
Arctic Austral |
geographic_facet |
Arctic Austral |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Geophysical Research 107, D20 (2002). doi:10.1029/2001JD000463 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD000463 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/hdl/2128/20887 info:eu-repo/semantics/altIdentifier/wos/WOS:000180466200080 info:eu-repo/semantics/altIdentifier/issn/0141-8637 https://juser.fz-juelich.de/record/23763 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-23763%22 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2001JD000463 |
container_title |
Journal of Geophysical Research |
container_volume |
107 |
container_issue |
D20 |
_version_ |
1766318286099709952 |