[291] - Investigation of the diurnal cycle of stratocumulus clouds at the northern coast of Chile
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| Citation | ||
| Westbrook, S., Schween, J., Löhnert, U., 2019. Investigation of the diurnal cycle of stratocumulus clouds at the northern coast of Chile. The coastal fog geo-ecosystems in the Chilean-Peruvian Desert: understanding biosphere-atmosphere interactions, November 25 - 27, 2019, Alto Patache, Atacama UC Research Station, Chile. Accessed from https://www.crc1211db.uni-koeln.de/data.php?dataID=291 at 2021-03-01. | ||
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| Identification | ||
| Title(s): | Main Title: Investigation of the diurnal cycle of stratocumulus clouds at the northern coast of Chile | |
| Description(s): | 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 west coast of South America form the major source of water to the hyper-arid area at the northern coast of Chile. Within the DFG collaborative research center 'Earth evolution at the dry limit', for the first time, a long-term study of the vertical structure of clouds and their environment governing the moisture supply to the coastal part of the Atacama is available. Three state of the art ground based remote sensing instruments were installed for one year at the airport of Iquique/Chile (20.5°S, 70.2°W, 56m a.s.l.) in close cooperation with Centro del Desierto de Atacama (Pontificia Universidad Católica de Chile). The instruments provide vertical profiles of wind, turbulence and temperature, as well as integrated values of water vapor and liquid water. Instrument synergy provides vertical cloud structure information. We observe a land-sea circulation with a super-imposed southerly wind component. Highest wind speeds can be found during the afternoon. Clouds show a distinct seasonal pattern with a maximum of cloud occurrence during winter (JJA) and a minimum during summer (DJF). Clouds are higher and vertically less extended in winter than in summer. Liquid water path shows a diurnal cycle with highest values during night and morning hours and lowest values during noon. Furthermore, the clouds contain much more liquid water in summer. The turbulent structure of the boundary layer, together with the temperature profile, can be used to characterize the mechanism driving the cloud life cycle. | |
| Responsible Party | ||
| Creator(s): | Author: Sarah Westbrook Author: Jan Schween Author: Ulrich Löhnert | |
| Publisher: | CRC1211 Database (CRC1211DB) | |
| Topic | ||
| CRC1211 Topic: | Climate | |
| Related Sub-project(s): | A1 | |
| Subject(s): | CRC1211 Keywords: Meteorology, Field Experiments, Remote Sensing GEMET Inspire Spatial Data Theme: Atmospheric conditions, Environmental monitoring facilities GEMET: meteorological research, fog, cloud, wind | |
| Topic Category: | ClimatologyMeteorologyAtmosphere | |
| File Details | ||
| File Name: | chile_poster_november_2019.pdf | |
| Data Type: | Text | |
| File Size: | 1521 kB (1.485 MB) | |
| Date(s): | Other: 2018-03-28 (start of presented Data) Other: 2019-03-05 (end of presented Data) Other: 2019-11-25 (Poster presented) | |
| Mime Type: | application/pdf | |
| Data Format: | PDF (1.5) | |
| Language: | English | |
| Status: | Completed | |
| Constraints | ||
| Download Permission: | OnlyCRC1211 | |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. | |
| Access Limitations: | According to the CRC1211DB data policy agreement. | |
| Geographic | ||
| North: | -20.53954 | |
| East: | -70.17729 | |
| South: | -20.53954 | |
| West: | -70.17729 | |
| Measurement Region: | Other | |
| Measurement Location: | --Other-- | |
| Specific Informations - Presentation | ||
| Presenter: | Jan H. Schween | |
| Presentation Date: | 2019-11-25 | |
| Presentation Type: | Poster | |
| Event Name: | The coastal fog geo-ecosystems in the Chilean-Peruvian Desert: understanding biosphere-atmosphere interactions | |
| Event Type: | Workshop | |
| Event Location: | Alto Patache, Atacama UC Research Station, Chile | |
| Event Period: | 25th of November, 2019 - 27th of November, 2019 | |
| Event Url: | http://blank.org/ | |
| Metadata Details | ||
| Metadata Creator: | Jan Schween | |
| Metadata Created: | 2019-12-02 | |
| Metadata Last Updated: | 2020-09-21 | |
| Subproject: | A1 | |
| Funding Phase: | 1 | |
| Metadata Language: | English | |
| Metadata Version: | V43 | |
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| Page Visits: | 108 | |
| Metadata Downloads: | 0 | |
| Dataset Downloads: | 0 | |
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