Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event
The synergy between airborne lidar, radar, passive microwave, and passive imaging spectrometer measurements was used to characterize the vertical and small-scale (down to 10 m) horizontal distribution of the cloud thermodynamic phase. Two case studies of low-level Arctic clouds in a cold air outbrea...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
COPERNICUS GESELLSCHAFT MBH
2019
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/51002/ https://epic.awi.de/id/eprint/51002/1/acp-2019-960.pdf https://hdl.handle.net/10013/epic.92de06c2-fca8-4a50-a751-de82b5096a96 |
id |
ftawi:oai:epic.awi.de:51002 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:51002 2024-09-15T17:51:39+00:00 Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event Ruiz-Donoso, Elena Ehrlich, André Schäfer, Michael Jäkel, Evelyn Schemann, Vera Crewell, Susanne Mech, Mario Kulla, Birte Kliesch, Leif-Leonard Neuber, Roland Wendisch, Manfred 2019-10-25 application/pdf https://epic.awi.de/id/eprint/51002/ https://epic.awi.de/id/eprint/51002/1/acp-2019-960.pdf https://hdl.handle.net/10013/epic.92de06c2-fca8-4a50-a751-de82b5096a96 unknown COPERNICUS GESELLSCHAFT MBH https://epic.awi.de/id/eprint/51002/1/acp-2019-960.pdf Ruiz-Donoso, E. , Ehrlich, A. , Schäfer, M. , Jäkel, E. , Schemann, V. , Crewell, S. , Mech, M. , Kulla, B. , Kliesch, L. L. , Neuber, R. orcid:0000-0001-7382-7832 and Wendisch, M. (2019) Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event , Atmospheric Chemistry and Physics . doi:10.5194/acp-2019-960 <https://doi.org/10.5194/acp-2019-960> , hdl:10013/epic.92de06c2-fca8-4a50-a751-de82b5096a96 EPIC3Atmospheric Chemistry and Physics, COPERNICUS GESELLSCHAFT MBH, ISSN: 1680-7316 Article isiRev 2019 ftawi https://doi.org/10.5194/acp-2019-960 2024-06-24T04:23:24Z The synergy between airborne lidar, radar, passive microwave, and passive imaging spectrometer measurements was used to characterize the vertical and small-scale (down to 10 m) horizontal distribution of the cloud thermodynamic phase. Two case studies of low-level Arctic clouds in a cold air outbreak and a warm air advection observed during the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) were investigated. Both clouds exhibited the typical vertical mixed-phase structure with mostly liquid water droplets at cloud top and ice crystals in lower layers. The cloud top horizontal small-scale variability observed during the cold air outbreak is dominated by the liquid water close to the cloud top and shows no indication of ice in lower cloud layers. Contrastingly, the cloud top variability of the case observed during a warm air advection showed some ice in areas of low reflectivity or cloud holes. Radiative transfer simulations considering homogeneous mixtures of liquid water droplets and ice crystals were able to reproduce the horizontal variability of this warm air advection. To account for more realistic vertical distributions of the thermodynamic phase, large eddy simulations (LES) were performed to reconstruct the observed cloud properties and were used as input for radiative transfer simulations. The simulations of the cloud observed during the cold air outbreak, with mostly liquid water at cloud top, realistically reproduced the observations. For the warm air advection case, the simulated cloud field underestimated the ice water content (IWC). Nevertheless, it revealed the presence of ice particles close to the cloud top and confirmed the observed horizontal variability of the cloud field. It is concluded that the cloud top small-scale horizontal variability reacts to changes in the vertical distribution of the cloud thermodynamic phase. Passive satellite-borne imaging spectrometer observations with pixel sizes larger than 100 m miss the small-scale cloud top structures, which ... Article in Journal/Newspaper Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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 |
The synergy between airborne lidar, radar, passive microwave, and passive imaging spectrometer measurements was used to characterize the vertical and small-scale (down to 10 m) horizontal distribution of the cloud thermodynamic phase. Two case studies of low-level Arctic clouds in a cold air outbreak and a warm air advection observed during the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) were investigated. Both clouds exhibited the typical vertical mixed-phase structure with mostly liquid water droplets at cloud top and ice crystals in lower layers. The cloud top horizontal small-scale variability observed during the cold air outbreak is dominated by the liquid water close to the cloud top and shows no indication of ice in lower cloud layers. Contrastingly, the cloud top variability of the case observed during a warm air advection showed some ice in areas of low reflectivity or cloud holes. Radiative transfer simulations considering homogeneous mixtures of liquid water droplets and ice crystals were able to reproduce the horizontal variability of this warm air advection. To account for more realistic vertical distributions of the thermodynamic phase, large eddy simulations (LES) were performed to reconstruct the observed cloud properties and were used as input for radiative transfer simulations. The simulations of the cloud observed during the cold air outbreak, with mostly liquid water at cloud top, realistically reproduced the observations. For the warm air advection case, the simulated cloud field underestimated the ice water content (IWC). Nevertheless, it revealed the presence of ice particles close to the cloud top and confirmed the observed horizontal variability of the cloud field. It is concluded that the cloud top small-scale horizontal variability reacts to changes in the vertical distribution of the cloud thermodynamic phase. Passive satellite-borne imaging spectrometer observations with pixel sizes larger than 100 m miss the small-scale cloud top structures, which ... |
format |
Article in Journal/Newspaper |
author |
Ruiz-Donoso, Elena Ehrlich, André Schäfer, Michael Jäkel, Evelyn Schemann, Vera Crewell, Susanne Mech, Mario Kulla, Birte Kliesch, Leif-Leonard Neuber, Roland Wendisch, Manfred |
spellingShingle |
Ruiz-Donoso, Elena Ehrlich, André Schäfer, Michael Jäkel, Evelyn Schemann, Vera Crewell, Susanne Mech, Mario Kulla, Birte Kliesch, Leif-Leonard Neuber, Roland Wendisch, Manfred Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
author_facet |
Ruiz-Donoso, Elena Ehrlich, André Schäfer, Michael Jäkel, Evelyn Schemann, Vera Crewell, Susanne Mech, Mario Kulla, Birte Kliesch, Leif-Leonard Neuber, Roland Wendisch, Manfred |
author_sort |
Ruiz-Donoso, Elena |
title |
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
title_short |
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
title_full |
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
title_fullStr |
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
title_full_unstemmed |
Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
title_sort |
small-scale structure of thermodynamic phase in arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/51002/ https://epic.awi.de/id/eprint/51002/1/acp-2019-960.pdf https://hdl.handle.net/10013/epic.92de06c2-fca8-4a50-a751-de82b5096a96 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
EPIC3Atmospheric Chemistry and Physics, COPERNICUS GESELLSCHAFT MBH, ISSN: 1680-7316 |
op_relation |
https://epic.awi.de/id/eprint/51002/1/acp-2019-960.pdf Ruiz-Donoso, E. , Ehrlich, A. , Schäfer, M. , Jäkel, E. , Schemann, V. , Crewell, S. , Mech, M. , Kulla, B. , Kliesch, L. L. , Neuber, R. orcid:0000-0001-7382-7832 and Wendisch, M. (2019) Small-scale structure of thermodynamic phase in Arctic mixed-phase clouds observed by airborne remote sensing during a cold air outbreak and a warm air advection event , Atmospheric Chemistry and Physics . doi:10.5194/acp-2019-960 <https://doi.org/10.5194/acp-2019-960> , hdl:10013/epic.92de06c2-fca8-4a50-a751-de82b5096a96 |
op_doi |
https://doi.org/10.5194/acp-2019-960 |
_version_ |
1810293618786697216 |