Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses
Arctic air masses undergo intense transformations when moving southward from closed sea ice to warmer open waters in marine cold-Air outbreaks (CAOs). Due to the lack of measurements of diabatic heating and moisture uptake rates along CAO flows, studies often depend on atmospheric reanalysis output....
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2024
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Online Access: | http://resolver.tudelft.nl/uuid:12028463-bc1f-4845-bf15-a545eeb322ab https://doi.org/10.5194/acp-24-3883-2024 |
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fttudelft:oai:tudelft.nl:uuid:12028463-bc1f-4845-bf15-a545eeb322ab 2024-05-19T07:35:32+00:00 Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses Kirbus, Benjamin (author) Schirmacher, Imke (author) Klingebiel, Marcus (author) Schäfer, Michael (author) Ehrlich, André (author) Slättberg, Nils (author) Lucke, J.R. (author) Moser, Manuel (author) Müller, Hanno (author) Wendisch, Manfred (author) 2024 http://resolver.tudelft.nl/uuid:12028463-bc1f-4845-bf15-a545eeb322ab https://doi.org/10.5194/acp-24-3883-2024 en eng http://www.scopus.com/inward/record.url?scp=85189896875&partnerID=8YFLogxK Atmospheric Chemistry and Physics (online)--1680-7316--16832d90-3dae-4c5d-be35-cd0bb822e241 http://resolver.tudelft.nl/uuid:12028463-bc1f-4845-bf15-a545eeb322ab https://doi.org/10.5194/acp-24-3883-2024 © 2024 Benjamin Kirbus, Imke Schirmacher, Marcus Klingebiel, Michael Schäfer, André Ehrlich, Nils Slättberg, J.R. Lucke, Manuel Moser, Hanno Müller, Manfred Wendisch journal article 2024 fttudelft https://doi.org/10.5194/acp-24-3883-2024 2024-04-23T23:35:22Z Arctic air masses undergo intense transformations when moving southward from closed sea ice to warmer open waters in marine cold-Air outbreaks (CAOs). Due to the lack of measurements of diabatic heating and moisture uptake rates along CAO flows, studies often depend on atmospheric reanalysis output. However, the uncertainties connected to those datasets remain unclear. Here, we present height-resolved airborne observations of diabatic heating, moisture uptake, and cloud evolution measured in a quasi-Lagrangian manner. The investigated CAO was observed on 1 April 2022 during the HALO-(AC)3 campaign. Shortly after passing the sea-ice edge, maximum diabatic heating rates over 6ĝ€¯Kh-1 and moisture uptake over 0.3ĝ€¯gkg-1h-1 were measured near the surface. Clouds started forming and vertical mixing within the deepening boundary layer intensified. The quasi-Lagrangian observations are compared with the fifth-generation global reanalysis (ERA5) and the Copernicus Arctic Regional Reanalysis (CARRA). Compared to these observations, the mean absolute errors of ERA5 versus CARRA data are 14ĝ€¯% higher for air temperature over sea ice (1.14ĝ€¯K versus 1.00ĝ€¯K) and 62ĝ€¯% higher for specific humidity over ice-free ocean (0.112ĝ€¯gkg-1 versus 0.069ĝ€¯gkg-1). We relate these differences to issues with the representation of the marginal ice zone and corresponding surface fluxes in ERA5, as well as the cloud scheme producing excess liquid-bearing, precipitating clouds, which causes a too-dry marine boundary layer. CARRA's high spatial resolution and demonstrated higher fidelity towards observations make it a promising candidate for further studies on Arctic air mass transformations. Aircraft Noise and Climate Effects Article in Journal/Newspaper Arctic Sea ice Delft University of Technology: Institutional Repository Atmospheric Chemistry and Physics 24 6 3883 3904 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
description |
Arctic air masses undergo intense transformations when moving southward from closed sea ice to warmer open waters in marine cold-Air outbreaks (CAOs). Due to the lack of measurements of diabatic heating and moisture uptake rates along CAO flows, studies often depend on atmospheric reanalysis output. However, the uncertainties connected to those datasets remain unclear. Here, we present height-resolved airborne observations of diabatic heating, moisture uptake, and cloud evolution measured in a quasi-Lagrangian manner. The investigated CAO was observed on 1 April 2022 during the HALO-(AC)3 campaign. Shortly after passing the sea-ice edge, maximum diabatic heating rates over 6ĝ€¯Kh-1 and moisture uptake over 0.3ĝ€¯gkg-1h-1 were measured near the surface. Clouds started forming and vertical mixing within the deepening boundary layer intensified. The quasi-Lagrangian observations are compared with the fifth-generation global reanalysis (ERA5) and the Copernicus Arctic Regional Reanalysis (CARRA). Compared to these observations, the mean absolute errors of ERA5 versus CARRA data are 14ĝ€¯% higher for air temperature over sea ice (1.14ĝ€¯K versus 1.00ĝ€¯K) and 62ĝ€¯% higher for specific humidity over ice-free ocean (0.112ĝ€¯gkg-1 versus 0.069ĝ€¯gkg-1). We relate these differences to issues with the representation of the marginal ice zone and corresponding surface fluxes in ERA5, as well as the cloud scheme producing excess liquid-bearing, precipitating clouds, which causes a too-dry marine boundary layer. CARRA's high spatial resolution and demonstrated higher fidelity towards observations make it a promising candidate for further studies on Arctic air mass transformations. Aircraft Noise and Climate Effects |
format |
Article in Journal/Newspaper |
author |
Kirbus, Benjamin (author) Schirmacher, Imke (author) Klingebiel, Marcus (author) Schäfer, Michael (author) Ehrlich, André (author) Slättberg, Nils (author) Lucke, J.R. (author) Moser, Manuel (author) Müller, Hanno (author) Wendisch, Manfred (author) |
spellingShingle |
Kirbus, Benjamin (author) Schirmacher, Imke (author) Klingebiel, Marcus (author) Schäfer, Michael (author) Ehrlich, André (author) Slättberg, Nils (author) Lucke, J.R. (author) Moser, Manuel (author) Müller, Hanno (author) Wendisch, Manfred (author) Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
author_facet |
Kirbus, Benjamin (author) Schirmacher, Imke (author) Klingebiel, Marcus (author) Schäfer, Michael (author) Ehrlich, André (author) Slättberg, Nils (author) Lucke, J.R. (author) Moser, Manuel (author) Müller, Hanno (author) Wendisch, Manfred (author) |
author_sort |
Kirbus, Benjamin (author) |
title |
Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
title_short |
Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
title_full |
Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
title_fullStr |
Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
title_full_unstemmed |
Thermodynamic and cloud evolution in a cold-Air outbreak during HALO-(AC) 3: Quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses |
title_sort |
thermodynamic and cloud evolution in a cold-air outbreak during halo-(ac) 3: quasi-lagrangian observations compared to the era5 and carra reanalyses |
publishDate |
2024 |
url |
http://resolver.tudelft.nl/uuid:12028463-bc1f-4845-bf15-a545eeb322ab https://doi.org/10.5194/acp-24-3883-2024 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
http://www.scopus.com/inward/record.url?scp=85189896875&partnerID=8YFLogxK Atmospheric Chemistry and Physics (online)--1680-7316--16832d90-3dae-4c5d-be35-cd0bb822e241 http://resolver.tudelft.nl/uuid:12028463-bc1f-4845-bf15-a545eeb322ab https://doi.org/10.5194/acp-24-3883-2024 |
op_rights |
© 2024 Benjamin Kirbus, Imke Schirmacher, Marcus Klingebiel, Michael Schäfer, André Ehrlich, Nils Slättberg, J.R. Lucke, Manuel Moser, Hanno Müller, Manfred Wendisch |
op_doi |
https://doi.org/10.5194/acp-24-3883-2024 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
24 |
container_issue |
6 |
container_start_page |
3883 |
op_container_end_page |
3904 |
_version_ |
1799474281257631744 |