Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³
To understand the role of atmospheric boundary layer (ABL) clouds in Arctic amplification, detailed studies of cloud–related processes influencing the ABL and the atmospheric energy budget are indispensable. The significance of these processes depends on various factors such as cloud macro- and micr...
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ftawi:oai:epic.awi.de:54878 2023-05-15T13:11:24+02:00 Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ Lüpkes, Christof Schäfer, Michael Becker, Sebastian Michaelis, Janosch Wendisch, Manfred 2021-10-27 https://epic.awi.de/id/eprint/54878/ https://hdl.handle.net/10013/epic.40ef10fc-b013-4baf-96de-de9da6bdc750 unknown Lüpkes, C. orcid:0000-0001-6518-0717 , Schäfer, M. , Becker, S. , Michaelis, J. orcid:0000-0002-0564-2083 and Wendisch, M. (2021) Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ , 3rd (AC)³ Science Conference on Arctic Amplification, Potsdam, Germany, 25 October 2021 - 27 October 2021 . hdl:10013/epic.40ef10fc-b013-4baf-96de-de9da6bdc750 EPIC33rd (AC)³ Science Conference on Arctic Amplification, Potsdam, Germany, 2021-10-25-2021-10-27 Conference notRev 2021 ftawi 2021-12-24T15:46:35Z To understand the role of atmospheric boundary layer (ABL) clouds in Arctic amplification, detailed studies of cloud–related processes influencing the ABL and the atmospheric energy budget are indispensable. The significance of these processes depends on various factors such as cloud macro- and microphysical properties, aerosol distributions, two–dimensional surface albedo, sea–ice characteristics, and synoptic regime. To overcome our incomplete knowledge of the influence of these factors, in (AC)3 we have so far collected extensive data during a series of three major aircraft campaigns using the AWI Polar 5/6 aircraft. The analyses revealed a clear impact of clouds on both radiation and turbulence in the ABL but also a large variability of flux profiles depending on various factors. Based on the airborne data we have quantified the cloud radiative forcing dependent on surface conditions. Our studies during phase I mainly concentrated on single-layer clouds while during phase II, we additionally studied multi-layer clouds and their impact on the ABL structure and energy budget. Based on data from the late summer aircraft campaign MOSAiC ACA we found that in conditions with multi-layer clouds the impact of the mid-level clouds on turbulence and radiative cooling effects is dominating, while the cloud layers below are of minor importance in this process. This work was supported by the DFG funded Transregio-project TR 172 “Arctic Amplification (AC)3“. Conference Object albedo Arctic Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
To understand the role of atmospheric boundary layer (ABL) clouds in Arctic amplification, detailed studies of cloud–related processes influencing the ABL and the atmospheric energy budget are indispensable. The significance of these processes depends on various factors such as cloud macro- and microphysical properties, aerosol distributions, two–dimensional surface albedo, sea–ice characteristics, and synoptic regime. To overcome our incomplete knowledge of the influence of these factors, in (AC)3 we have so far collected extensive data during a series of three major aircraft campaigns using the AWI Polar 5/6 aircraft. The analyses revealed a clear impact of clouds on both radiation and turbulence in the ABL but also a large variability of flux profiles depending on various factors. Based on the airborne data we have quantified the cloud radiative forcing dependent on surface conditions. Our studies during phase I mainly concentrated on single-layer clouds while during phase II, we additionally studied multi-layer clouds and their impact on the ABL structure and energy budget. Based on data from the late summer aircraft campaign MOSAiC ACA we found that in conditions with multi-layer clouds the impact of the mid-level clouds on turbulence and radiative cooling effects is dominating, while the cloud layers below are of minor importance in this process. This work was supported by the DFG funded Transregio-project TR 172 “Arctic Amplification (AC)3“. |
format |
Conference Object |
author |
Lüpkes, Christof Schäfer, Michael Becker, Sebastian Michaelis, Janosch Wendisch, Manfred |
spellingShingle |
Lüpkes, Christof Schäfer, Michael Becker, Sebastian Michaelis, Janosch Wendisch, Manfred Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
author_facet |
Lüpkes, Christof Schäfer, Michael Becker, Sebastian Michaelis, Janosch Wendisch, Manfred |
author_sort |
Lüpkes, Christof |
title |
Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
title_short |
Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
title_full |
Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
title_fullStr |
Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
title_full_unstemmed |
Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ |
title_sort |
fluxes in the arctic boundary layer - poster of the a03-project in (ac)³ |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/54878/ https://hdl.handle.net/10013/epic.40ef10fc-b013-4baf-96de-de9da6bdc750 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Arctic Sea ice |
genre_facet |
albedo Arctic Arctic Sea ice |
op_source |
EPIC33rd (AC)³ Science Conference on Arctic Amplification, Potsdam, Germany, 2021-10-25-2021-10-27 |
op_relation |
Lüpkes, C. orcid:0000-0001-6518-0717 , Schäfer, M. , Becker, S. , Michaelis, J. orcid:0000-0002-0564-2083 and Wendisch, M. (2021) Fluxes in the Arctic Boundary Layer - Poster of the A03-Project in (AC)³ , 3rd (AC)³ Science Conference on Arctic Amplification, Potsdam, Germany, 25 October 2021 - 27 October 2021 . hdl:10013/epic.40ef10fc-b013-4baf-96de-de9da6bdc750 |
_version_ |
1766247258203881472 |