Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model
International audience Observations from CMET (Controlled Meteorological) balloons are analyzed in combination with mesoscale model simulations to provide insights into tropospheric meteorological conditions (temperature, humidity, wind-speed) around Svalbard, European High Arctic. Five Controlled M...
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017/document https://hal-insu.archives-ouvertes.fr/insu-03576017/file/acpd-15-27539-2015.pdf https://doi.org/10.5194/acpd-15-27539-2015 |
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ftunivnantes:oai:HAL:insu-03576017v1 |
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openpolar |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Roberts, Tjarda, Voss, P. B. Dütsch, M. Hole, L. R. Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Observations from CMET (Controlled Meteorological) balloons are analyzed in combination with mesoscale model simulations to provide insights into tropospheric meteorological conditions (temperature, humidity, wind-speed) around Svalbard, European High Arctic. Five Controlled Meteorological (CMET) balloons were launched from Ny-Ålesund in Svalbard over 5-12 May 2011, and measured vertical atmospheric profiles above Spitsbergen Island and over coastal areas to both the east and west. One notable CMET flight achieved a suite of 18 continuous soundings that probed the Arctic marine boundary layer over a period of more than 10 h. The CMET profiles are compared to simulations using the Weather Research and Forecasting (WRF) model using nested grids and three different boundary layer schemes. Variability between the three model schemes was typically smaller than the discrepancies between the model runs and the observations. Over Spitsbergen, the CMET flights identified temperature inversions and low-level jets (LLJ) that were not captured by the model. Nevertheless, the model largely reproduced time-series obtained from the Ny-Ålesund meteorological station, with exception of surface winds during the LLJ. Over sea-ice east of Svalbard the model underestimated potential temperature and overestimated wind-speed compared to the CMET observations. This is most likely due to the full sea-ice coverage assumed by the model, and consequent underestimation of ocean-atmosphere exchange in the presence of leads or fractional coverage. The suite of continuous CMET soundings over a sea-ice free region to the northwest of Svalbard are analysed spatially and temporally, and compared to the model. The observed along-flight daytime increase in relative humidity is interpreted in terms of the diurnal cycle, and in the context of marine and terrestrial air-mass influences. Analysis of the balloon trajectory during the CMET soundings identifies strong wind-shear, with a low-level channeled flow. The study ... |
author2 |
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) |
format |
Article in Journal/Newspaper |
author |
Roberts, Tjarda, Voss, P. B. Dütsch, M. Hole, L. R. |
author_facet |
Roberts, Tjarda, Voss, P. B. Dütsch, M. Hole, L. R. |
author_sort |
Roberts, Tjarda, |
title |
Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
title_short |
Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
title_full |
Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
title_fullStr |
Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
title_full_unstemmed |
Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model |
title_sort |
controlled meteorological (cmet) balloon profiling of the arctic atmospheric boundary layer around spitsbergen compared to a mesoscale model |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017/document https://hal-insu.archives-ouvertes.fr/insu-03576017/file/acpd-15-27539-2015.pdf https://doi.org/10.5194/acpd-15-27539-2015 |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
Arctic Ny Ålesund Ny-Ålesund Sea ice Svalbard Spitsbergen |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Sea ice Svalbard Spitsbergen |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal-insu.archives-ouvertes.fr/insu-03576017 Atmospheric Chemistry and Physics Discussions, 2015, 15, pp.27539-27573. ⟨10.5194/acpd-15-27539-2015⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acpd-15-27539-2015 insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017/document https://hal-insu.archives-ouvertes.fr/insu-03576017/file/acpd-15-27539-2015.pdf BIBCODE: 2015ACPD.1527539R doi:10.5194/acpd-15-27539-2015 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acpd-15-27539-2015 |
_version_ |
1766328908337119232 |
spelling |
ftunivnantes:oai:HAL:insu-03576017v1 2023-05-15T14:56:51+02:00 Controlled meteorological (CMET) balloon profiling of the Arctic atmospheric boundary layer around Spitsbergen compared to a mesoscale model Roberts, Tjarda, Voss, P. B. Dütsch, M. Hole, L. R. Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) 2015 https://hal-insu.archives-ouvertes.fr/insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017/document https://hal-insu.archives-ouvertes.fr/insu-03576017/file/acpd-15-27539-2015.pdf https://doi.org/10.5194/acpd-15-27539-2015 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acpd-15-27539-2015 insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017 https://hal-insu.archives-ouvertes.fr/insu-03576017/document https://hal-insu.archives-ouvertes.fr/insu-03576017/file/acpd-15-27539-2015.pdf BIBCODE: 2015ACPD.1527539R doi:10.5194/acpd-15-27539-2015 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal-insu.archives-ouvertes.fr/insu-03576017 Atmospheric Chemistry and Physics Discussions, 2015, 15, pp.27539-27573. ⟨10.5194/acpd-15-27539-2015⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2015 ftunivnantes https://doi.org/10.5194/acpd-15-27539-2015 2023-02-08T03:11:36Z International audience Observations from CMET (Controlled Meteorological) balloons are analyzed in combination with mesoscale model simulations to provide insights into tropospheric meteorological conditions (temperature, humidity, wind-speed) around Svalbard, European High Arctic. Five Controlled Meteorological (CMET) balloons were launched from Ny-Ålesund in Svalbard over 5-12 May 2011, and measured vertical atmospheric profiles above Spitsbergen Island and over coastal areas to both the east and west. One notable CMET flight achieved a suite of 18 continuous soundings that probed the Arctic marine boundary layer over a period of more than 10 h. The CMET profiles are compared to simulations using the Weather Research and Forecasting (WRF) model using nested grids and three different boundary layer schemes. Variability between the three model schemes was typically smaller than the discrepancies between the model runs and the observations. Over Spitsbergen, the CMET flights identified temperature inversions and low-level jets (LLJ) that were not captured by the model. Nevertheless, the model largely reproduced time-series obtained from the Ny-Ålesund meteorological station, with exception of surface winds during the LLJ. Over sea-ice east of Svalbard the model underestimated potential temperature and overestimated wind-speed compared to the CMET observations. This is most likely due to the full sea-ice coverage assumed by the model, and consequent underestimation of ocean-atmosphere exchange in the presence of leads or fractional coverage. The suite of continuous CMET soundings over a sea-ice free region to the northwest of Svalbard are analysed spatially and temporally, and compared to the model. The observed along-flight daytime increase in relative humidity is interpreted in terms of the diurnal cycle, and in the context of marine and terrestrial air-mass influences. Analysis of the balloon trajectory during the CMET soundings identifies strong wind-shear, with a low-level channeled flow. The study ... Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Sea ice Svalbard Spitsbergen Université de Nantes: HAL-UNIV-NANTES Arctic Ny-Ålesund Svalbard |