Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters
During the recent winters water vapour has been accurately measured from different Arctic sites using balloon-borne Lyman-alpha FLASH-B hygrosonde. Here we present the results of 18 balloon water vapour soundings conducted at Sodankylä (67 N) and Ny-Alesund (79 N) during 2003/04, 2004/05 and 2005/06...
Main Authors: | , , , , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
2006
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/15158/ https://hdl.handle.net/10013/epic.25343 |
id |
ftawi:oai:epic.awi.de:15158 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:15158 2023-05-15T14:26:39+02:00 Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters Khaykin, S. Yushkov, V. Lukyanov, A. Korshunov, L. Maturilli, Marion Kyrö, E. Karpetchko, A. 2006 https://epic.awi.de/id/eprint/15158/ https://hdl.handle.net/10013/epic.25343 unknown Khaykin, S. , Yushkov, V. , Lukyanov, A. , Korshunov, L. , Maturilli, M. orcid:0000-0001-6818-7383 , Kyrö, E. and Karpetchko, A. (2006) Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters , EGU General Assembly 2006, 2-7 April, Vienna, Austria. . hdl:10013/epic.25343 EPIC3EGU General Assembly 2006, 2-7 April, Vienna, Austria. Conference notRev 2006 ftawi 2021-12-24T15:31:11Z During the recent winters water vapour has been accurately measured from different Arctic sites using balloon-borne Lyman-alpha FLASH-B hygrosonde. Here we present the results of 18 balloon water vapour soundings conducted at Sodankylä (67 N) and Ny-Alesund (79 N) during 2003/04, 2004/05 and 2005/06 winters. The obtained data set allows case studies and detailed characterization of stratospheric water vapour vertical distribution within different conditions in the Arctic polar stratosphere.Water vapour vertical distribution in the Arctic lower stratosphere is primarily affected by the dynamical effects of polar vortex and by phase aggregation at the temperatures below ice PSC threshold. The measured H2O profiles carry the signatures of different processes occurring in the Arctic winter stratosphere and reveal a detailed view on the Arctic UT/LS water vapour distribution.The measurements clearly demonstrate typical differences in stratospheric water vapour concentration inside and outside the vortex; for example in the polar vortex of 2003/04 at 20 hPa the difference reaches 1.4 ppmv. Also it is pointed out that water vapour profiles obtained at the edge or close to the edge of vortex are characteristic by their laminated structure. As shown by the results of RDF-analysis this structure is not linked to dehydration but to differential advection of air masses originating from inside and outside the vortex. Thus water vapour is proved to be a valuable tracer for dynamical processes in the polar stratosphere. In the other case, the water vapour vertical profiles obtained at Ny-Alesund in January 2005 during the presence of PSCs clearly show the dehydration layers with reduced water vapour.Another focus is put here on the water vapour vertical distribution within the so called transition layer above the polar tropopause. The existence of this transition layer may be caused by diffusion of water vapour through the smeared polar winter tropopause, whereas the vertical structure of the H2O profile is affected by the dynamical processes.In addition the variability of water vapour at the hygropause and the distance between tropopause and hygropause are discussed. Conference Object Arctic Arctic Sodankylä Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
During the recent winters water vapour has been accurately measured from different Arctic sites using balloon-borne Lyman-alpha FLASH-B hygrosonde. Here we present the results of 18 balloon water vapour soundings conducted at Sodankylä (67 N) and Ny-Alesund (79 N) during 2003/04, 2004/05 and 2005/06 winters. The obtained data set allows case studies and detailed characterization of stratospheric water vapour vertical distribution within different conditions in the Arctic polar stratosphere.Water vapour vertical distribution in the Arctic lower stratosphere is primarily affected by the dynamical effects of polar vortex and by phase aggregation at the temperatures below ice PSC threshold. The measured H2O profiles carry the signatures of different processes occurring in the Arctic winter stratosphere and reveal a detailed view on the Arctic UT/LS water vapour distribution.The measurements clearly demonstrate typical differences in stratospheric water vapour concentration inside and outside the vortex; for example in the polar vortex of 2003/04 at 20 hPa the difference reaches 1.4 ppmv. Also it is pointed out that water vapour profiles obtained at the edge or close to the edge of vortex are characteristic by their laminated structure. As shown by the results of RDF-analysis this structure is not linked to dehydration but to differential advection of air masses originating from inside and outside the vortex. Thus water vapour is proved to be a valuable tracer for dynamical processes in the polar stratosphere. In the other case, the water vapour vertical profiles obtained at Ny-Alesund in January 2005 during the presence of PSCs clearly show the dehydration layers with reduced water vapour.Another focus is put here on the water vapour vertical distribution within the so called transition layer above the polar tropopause. The existence of this transition layer may be caused by diffusion of water vapour through the smeared polar winter tropopause, whereas the vertical structure of the H2O profile is affected by the dynamical processes.In addition the variability of water vapour at the hygropause and the distance between tropopause and hygropause are discussed. |
format |
Conference Object |
author |
Khaykin, S. Yushkov, V. Lukyanov, A. Korshunov, L. Maturilli, Marion Kyrö, E. Karpetchko, A. |
spellingShingle |
Khaykin, S. Yushkov, V. Lukyanov, A. Korshunov, L. Maturilli, Marion Kyrö, E. Karpetchko, A. Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
author_facet |
Khaykin, S. Yushkov, V. Lukyanov, A. Korshunov, L. Maturilli, Marion Kyrö, E. Karpetchko, A. |
author_sort |
Khaykin, S. |
title |
Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
title_short |
Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
title_full |
Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
title_fullStr |
Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
title_full_unstemmed |
Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters |
title_sort |
characterization of stratospheric water vapour vertical distribution in the arctic from balloon observations during the recent winters |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/15158/ https://hdl.handle.net/10013/epic.25343 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Arctic Sodankylä |
geographic_facet |
Arctic Sodankylä |
genre |
Arctic Arctic Sodankylä |
genre_facet |
Arctic Arctic Sodankylä |
op_source |
EPIC3EGU General Assembly 2006, 2-7 April, Vienna, Austria. |
op_relation |
Khaykin, S. , Yushkov, V. , Lukyanov, A. , Korshunov, L. , Maturilli, M. orcid:0000-0001-6818-7383 , Kyrö, E. and Karpetchko, A. (2006) Characterization of stratospheric water vapour vertical distribution in the Arctic from balloon observations during the recent winters , EGU General Assembly 2006, 2-7 April, Vienna, Austria. . hdl:10013/epic.25343 |
_version_ |
1766299915320819712 |