Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography
Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that involves aircraft, lidar and radar observations in a WCB ascending from western Eu...
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2021
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00056181 2024-09-15T18:23:02+00:00 Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography Boettcher, Maxi Schäfler, Andreas Sprenger, Michael Sodemann, Harald Kaufmann, Stefan Voigt, Christiane Schlager, Hans Summa, Donato Di Girolamo, Paolo Nerini, Daniele Germann, Urs Wernli, Heini 2021-04 electronic https://doi.org/10.5194/acp-21-5477-2021 https://noa.gwlb.de/receive/cop_mods_00056181 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055832/acp-21-5477-2021.pdf https://acp.copernicus.org/articles/21/5477/2021/acp-21-5477-2021.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-21-5477-2021 https://noa.gwlb.de/receive/cop_mods_00056181 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055832/acp-21-5477-2021.pdf https://acp.copernicus.org/articles/21/5477/2021/acp-21-5477-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/acp-21-5477-2021 2024-06-26T04:40:00Z Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that involves aircraft, lidar and radar observations in a WCB ascending from western Europe towards the Baltic Sea during the Hydrological Cycle in the Mediterranean Experiment (HyMeX) and T-NAWDEX-Falcon in October 2012, a preparatory campaign for the THORPEX North Atlantic Waveguide and Downstream Impact Experiment (T-NAWDEX). Trajectories were used to link different observations along the WCB, that is, to establish so-called Lagrangian matches between observations. To this aim, an ensemble of wind fields from the global analyses produced by the European Centre for Medium-Range Weather Forecasts (ECMWF) Ensemble of Data Assimilations (EDA) system were used, which allowed for a probabilistic quantification of the WCB occurrence and the Lagrangian matches. Despite severe air traffic limitations for performing research flights over Europe, the German Aerospace Center (DLR) Falcon successfully sampled WCB air masses during different phases of the WCB ascent. The WCB trajectories revealed measurements in two distinct WCB branches: one branch ascended from the eastern North Atlantic over southwestern France, while the other had its inflow in the western Mediterranean. Both branches passed across the Alps, and for both branches Lagrangian matches coincidentally occurred between lidar water vapour measurements in the inflow of the WCB south of the Alps, radar measurements during the ascent at the Alps and in situ aircraft measurements by Falcon in the WCB outflow north of the Alps. An airborne release experiment with an inert tracer could confirm the long pathway of the WCB from the inflow in the Mediterranean boundary layer to the outflow in the upper troposphere near the Baltic Sea several hours later. The comparison of observations and ensemble analyses reveals a moist bias in the analyses in parts of the ... Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Atmospheric Chemistry and Physics 21 7 5477 5498 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Boettcher, Maxi Schäfler, Andreas Sprenger, Michael Sodemann, Harald Kaufmann, Stefan Voigt, Christiane Schlager, Hans Summa, Donato Di Girolamo, Paolo Nerini, Daniele Germann, Urs Wernli, Heini Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
topic_facet |
article Verlagsveröffentlichung |
description |
Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that involves aircraft, lidar and radar observations in a WCB ascending from western Europe towards the Baltic Sea during the Hydrological Cycle in the Mediterranean Experiment (HyMeX) and T-NAWDEX-Falcon in October 2012, a preparatory campaign for the THORPEX North Atlantic Waveguide and Downstream Impact Experiment (T-NAWDEX). Trajectories were used to link different observations along the WCB, that is, to establish so-called Lagrangian matches between observations. To this aim, an ensemble of wind fields from the global analyses produced by the European Centre for Medium-Range Weather Forecasts (ECMWF) Ensemble of Data Assimilations (EDA) system were used, which allowed for a probabilistic quantification of the WCB occurrence and the Lagrangian matches. Despite severe air traffic limitations for performing research flights over Europe, the German Aerospace Center (DLR) Falcon successfully sampled WCB air masses during different phases of the WCB ascent. The WCB trajectories revealed measurements in two distinct WCB branches: one branch ascended from the eastern North Atlantic over southwestern France, while the other had its inflow in the western Mediterranean. Both branches passed across the Alps, and for both branches Lagrangian matches coincidentally occurred between lidar water vapour measurements in the inflow of the WCB south of the Alps, radar measurements during the ascent at the Alps and in situ aircraft measurements by Falcon in the WCB outflow north of the Alps. An airborne release experiment with an inert tracer could confirm the long pathway of the WCB from the inflow in the Mediterranean boundary layer to the outflow in the upper troposphere near the Baltic Sea several hours later. The comparison of observations and ensemble analyses reveals a moist bias in the analyses in parts of the ... |
format |
Article in Journal/Newspaper |
author |
Boettcher, Maxi Schäfler, Andreas Sprenger, Michael Sodemann, Harald Kaufmann, Stefan Voigt, Christiane Schlager, Hans Summa, Donato Di Girolamo, Paolo Nerini, Daniele Germann, Urs Wernli, Heini |
author_facet |
Boettcher, Maxi Schäfler, Andreas Sprenger, Michael Sodemann, Harald Kaufmann, Stefan Voigt, Christiane Schlager, Hans Summa, Donato Di Girolamo, Paolo Nerini, Daniele Germann, Urs Wernli, Heini |
author_sort |
Boettcher, Maxi |
title |
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
title_short |
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
title_full |
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
title_fullStr |
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
title_full_unstemmed |
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
title_sort |
lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-5477-2021 https://noa.gwlb.de/receive/cop_mods_00056181 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055832/acp-21-5477-2021.pdf https://acp.copernicus.org/articles/21/5477/2021/acp-21-5477-2021.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-21-5477-2021 https://noa.gwlb.de/receive/cop_mods_00056181 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055832/acp-21-5477-2021.pdf https://acp.copernicus.org/articles/21/5477/2021/acp-21-5477-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-21-5477-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
7 |
container_start_page |
5477 |
op_container_end_page |
5498 |
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1810463149337346048 |