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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| Page Visits: | 22 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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