Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers
In this study, we present middle atmospheric water vapor (H2O) and ozone (O3) measurements obtained by ground-based microwave radiometers at three European locations in Bern (47° N), Onsala (57° N) and Sodankylä (67° N) during Northern winter 2009/2010. In January 2010, a major sudden stratospheric...
Published in: | Geoscientific Model Development |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
European Geosciences Union
2012
|
Subjects: | |
Online Access: | https://boris.unibe.ch/10143/1/acp-12-7753-2012.pdf https://boris.unibe.ch/10143/ |
id |
ftunivbern:oai:boris.unibe.ch:10143 |
---|---|
record_format |
openpolar |
spelling |
ftunivbern:oai:boris.unibe.ch:10143 2023-08-20T04:09:48+02:00 Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers Scheiben, Dominik Straub, Corinne Hocke, Klemens Forkman, Peter Kämpfer, Niklaus 2012 application/pdf https://boris.unibe.ch/10143/1/acp-12-7753-2012.pdf https://boris.unibe.ch/10143/ eng eng European Geosciences Union https://boris.unibe.ch/10143/ info:eu-repo/semantics/openAccess Scheiben, Dominik; Straub, Corinne; Hocke, Klemens; Forkman, Peter; Kämpfer, Niklaus (2012). Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers. Atmospheric chemistry and physics, 12(16), pp. 7753-7765. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-7753-2012 <http://dx.doi.org/10.5194/acp-12-7753-2012> 620 Engineering info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion NonPeerReviewed 2012 ftunivbern https://doi.org/10.5194/acp-12-7753-2012 2023-07-31T20:33:35Z In this study, we present middle atmospheric water vapor (H2O) and ozone (O3) measurements obtained by ground-based microwave radiometers at three European locations in Bern (47° N), Onsala (57° N) and Sodankylä (67° N) during Northern winter 2009/2010. In January 2010, a major sudden stratospheric warming (SSW) occurred in the Northern Hemisphere whose signatures are evident in the ground-based observations of H2O and O3. The observed anomalies in H2O and O3 are mostly explained by the relative location of the polar vortex with respect to the measurement locations. The SSW started on 26 January 2010 and was most pronounced by the end of January. The zonal mean temperature in the middle stratosphere (10 hPa) increased by approximately 25 Kelvin within a few days. The stratospheric vortex weakened during the SSW and shifted towards Europe. In the mesosphere, the vortex broke down, which lead to large scale mixing of polar and midlatitudinal air. After the warming, the polar vortex in the stratosphere split into two weaker vortices and in the mesosphere, a new, pole-centered vortex formed with maximum wind speed of 70 m s−1 at approximately 40° N. The shift of the stratospheric vortex towards Europe was observed in Bern as an increase in stratospheric H2O and a decrease in O3. The breakdown of the mesospheric vortex during the SSW was observed at Onsala and Sodankylä as a sudden increase in mesospheric H2O. The following large-scale descent inside the newly formed mesospheric vortex was well captured by the H2O observations in Sodankylä. In order to combine the H2O observations from the three different locations, we applied the trajectory mapping technique on our H2O observations to derive synoptic scale maps of the H2O distribution. Based on our observations and the 3-D wind field, this method allows determining the approximate development of the stratospheric and mesospheric polar vortex and demonstrates the potential of a network of ground-based instruments. Article in Journal/Newspaper Sodankylä BORIS (Bern Open Repository and Information System, University of Bern) Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Geoscientific Model Development 8 8 2611 2626 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
620 Engineering |
spellingShingle |
620 Engineering Scheiben, Dominik Straub, Corinne Hocke, Klemens Forkman, Peter Kämpfer, Niklaus Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
topic_facet |
620 Engineering |
description |
In this study, we present middle atmospheric water vapor (H2O) and ozone (O3) measurements obtained by ground-based microwave radiometers at three European locations in Bern (47° N), Onsala (57° N) and Sodankylä (67° N) during Northern winter 2009/2010. In January 2010, a major sudden stratospheric warming (SSW) occurred in the Northern Hemisphere whose signatures are evident in the ground-based observations of H2O and O3. The observed anomalies in H2O and O3 are mostly explained by the relative location of the polar vortex with respect to the measurement locations. The SSW started on 26 January 2010 and was most pronounced by the end of January. The zonal mean temperature in the middle stratosphere (10 hPa) increased by approximately 25 Kelvin within a few days. The stratospheric vortex weakened during the SSW and shifted towards Europe. In the mesosphere, the vortex broke down, which lead to large scale mixing of polar and midlatitudinal air. After the warming, the polar vortex in the stratosphere split into two weaker vortices and in the mesosphere, a new, pole-centered vortex formed with maximum wind speed of 70 m s−1 at approximately 40° N. The shift of the stratospheric vortex towards Europe was observed in Bern as an increase in stratospheric H2O and a decrease in O3. The breakdown of the mesospheric vortex during the SSW was observed at Onsala and Sodankylä as a sudden increase in mesospheric H2O. The following large-scale descent inside the newly formed mesospheric vortex was well captured by the H2O observations in Sodankylä. In order to combine the H2O observations from the three different locations, we applied the trajectory mapping technique on our H2O observations to derive synoptic scale maps of the H2O distribution. Based on our observations and the 3-D wind field, this method allows determining the approximate development of the stratospheric and mesospheric polar vortex and demonstrates the potential of a network of ground-based instruments. |
format |
Article in Journal/Newspaper |
author |
Scheiben, Dominik Straub, Corinne Hocke, Klemens Forkman, Peter Kämpfer, Niklaus |
author_facet |
Scheiben, Dominik Straub, Corinne Hocke, Klemens Forkman, Peter Kämpfer, Niklaus |
author_sort |
Scheiben, Dominik |
title |
Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
title_short |
Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
title_full |
Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
title_fullStr |
Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
title_full_unstemmed |
Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
title_sort |
observations of middle atmospheric h2o and o3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers |
publisher |
European Geosciences Union |
publishDate |
2012 |
url |
https://boris.unibe.ch/10143/1/acp-12-7753-2012.pdf https://boris.unibe.ch/10143/ |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_source |
Scheiben, Dominik; Straub, Corinne; Hocke, Klemens; Forkman, Peter; Kämpfer, Niklaus (2012). Observations of middle atmospheric H2O and O3 during the 2010 major sudden stratospheric warming by a network of microwave radiometers. Atmospheric chemistry and physics, 12(16), pp. 7753-7765. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-7753-2012 <http://dx.doi.org/10.5194/acp-12-7753-2012> |
op_relation |
https://boris.unibe.ch/10143/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-12-7753-2012 |
container_title |
Geoscientific Model Development |
container_volume |
8 |
container_issue |
8 |
container_start_page |
2611 |
op_container_end_page |
2626 |
_version_ |
1774723503379972096 |