Life Cycle of Stratocumulus Clouds over one Year at the Coast of the Atacama Desert

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Title:Main Title: Life Cycle of Stratocumulus Clouds over one Year at the Coast of the Atacama Desert
Description:Abstract: Marine stratocumulus clouds of the eastern Pacific play an essential role in the earth’s energy and radiation budget. Parts of these clouds off the western coast of South America form the major source of water to the hyperarid Atacama Desert coastal region at the northern coast of Chile. For the first time, a full year of vertical structure observations of the coastal stratocumulus and their environment is presented and analyzed. Installed at Iquique Airport in northern Chile in 2018/2019, three state-of-the-art remote sensing instruments provide vertical profiles of cloud macro- and micro-physical properties, wind, turbulence, and temperature as well as integrated values of water vapor and liquid water. Distinct diurnal and seasonal patterns of the stratocumulus life cycle are observed. Embedded in a land-sea circulation with a superimposed southerly wind component, maximum cloud occurrence and vertical extent occur at night but minima at local noon. Nighttime clouds are maintained by cloud-top cooling, whereas afternoon clouds reappear within a convective boundary layer driven through local moisture advection from the Pacific. During the night, these clouds finally re-connect to the maritime clouds in the upper branch of the land-sea circulation. The diurnal cycle is much more pronounced in austral winter, with lower, thicker, and more abundant (5times) clouds than in summer. This can be associated with different sea surface temperature (SST) gradients in summer and winter, leading to a stable or neutral stratification of the maritime boundary layer at the coast of the Atacama Desert in Iquique.
Identifier:10.5194/acp-22-12241-2022 (DOI)
Related Resources:Is Derived From Dataset 10.5880/CRC1211DB.46 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.53 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.49 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.50 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.51 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.52 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.43 (DOI)
Is Derived From Dataset 10.5880/CRC1211DB.54 (DOI)
Is Derived From Dataset https://hdl.handle.net/21.12132/2.e224164deb7c40c5 (Handle)
Citation Advice:Schween, J. H., del Rio, C., Garcia, J.L., Osses, P., Westbrook, S. and Löhnert, U., Life cycle of stratocumulus clouds over 1 year at the coast of the Atacama Desert, Atmospheric Chemistry and Physics, 22, 2022, 18, 12241--12267 DOI: 10.5194/acp-22-12241-2022.
Responsible Party
Creators:Jan Schween (Author), Sarah Westbrook (Author), Pablo Osses (Author), Camilo del Río (Author), Ulrich Löhnert (Author)
Publisher:Copernicus / EGU
Publication Year:2022
Topic
CRC1211 Topic:Climate
Related Subproject:A1
Subjects:Keywords: Meteorology, Cloud liquid water path (LWP), Integrated water vapor (IWV), Clouds, Wind, Air temperature, Sea surface temperature (SST), Fog Water
DDC: 550 Earth sciences
GEMET Inspire Spatial Data Themes: Meteorological geographical features, Atmospheric conditions
GEMET Thesaurus entries: meteorological research, atmospheric precipitation, climate, fog, wind, cloud, air temperature
Geogr. Information Topic:Climatology/Meteorology/Atmosphere
File Details
Filename:Schween_et_al_2022a_ACP_life_cycle_sc_clouds_atacama.pdf
Data Type:Text - Article
File Size:8.1 MB
Dates:Submitted: 10.02.2022
Accepted: 01.08.2022
Available: 20.09.2022
Mime Type:application/pdf
Data Format:OTHER (pdf 1.7)
Language:English
Status:Completed
Constraints
Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:None
Geographic
Specific Information - Publication
Publication Status:Published
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:Atmospheric Chemistry and Physics
Source Website:https://acp.copernicus.org/articles/22/12241/2022/
Issue:18
Volume:22
Number of Pages:27 (12241 - 12267)
Metadata Details
Metadata Creator:Jan Schween
Metadata Created:01.12.2023
Metadata Last Updated:01.12.2023
Subproject:A1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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