Synoptic analysis and simulation of an unusual dust event over the Atacama Desert
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| Title: | Main Title: Synoptic analysis and simulation of an unusual dust event over the Atacama Desert |
| Description: | Abstract: An unusual dust event over the Atacama Desert occurred in July 2016. Here, a synoptic study of the event is carried out using the NCEP FNL analysis data and WRF-chem simulations. The “zonalization” of a mid-tropospheric trough leads to the formation of a horizontal convergence band over the Northern Atacama and thus downward wind below it. As the descending air masses warm adiabatically, strong temperature contrasts to the colder air over the western Andes occur and intensify the down-valley winds, thus leading to extraordinary strong easterly winds in the Atacama. Simulations with WRF-chem indicate that these surface winds are sufficient for large-scale dust emission, and simulated dust plumes traveling far over the eastern South Pacific agree well with the observations. As the integrated dust load is comparable with the load observed in major dust sources of the world, our findings highlight the importance of such unusual events. |
| Identifier: | 10.1002/asl.899 (DOI) |
| Citation Advice: | Reyers M, Hamidi M, Shao Y. Synoptic analysis and simulation of an unusual dust event over the Atacama Desert. Atmos Sci Lett. 2019;e899. https://doi.org/10.1002/asl.899 |
Responsible Party
| Creators: | Mark Reyers (Author), Medhi Hamidi (Author), Yaping Shao (Author) |
| Publisher: | Wiley |
| Publication Year: | 2019 |
Topic
| CRC1211 Topic: | Climate |
| Related Subproject: | A3 |
| Subject: | Keyword: Climate Models |
| Geogr. Information Topic: | Climatology/Meteorology/Atmosphere |
File Details
| Filename: | Reyers_et_al_2019_dust_storm_Atacama.pdf |
| Data Type: | Text - Article |
| File Size: | 17.6 MB |
| Date: | Accepted: 27.03.2019 |
| Mime Type: | application/pdf |
| Data Format: | |
| 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: | Accepted |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Atmospheric Science Letters |
| Issue: | 6 |
| Volume: | 20 |
| Number of Pages: | 9 (1 - 9) |
Metadata Details
| Metadata Creator: | Mark Reyers |
| Metadata Created: | 23.05.2019 |
| Metadata Last Updated: | 23.05.2019 |
| Subproject: | A3 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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Dataset Statistics
| Page Visits: | 453 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 10 |
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