The Role of Moisture Conveyor Belts for Precipitation in the Atacama Desert
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| Title: | Main Title: The Role of Moisture Conveyor Belts for Precipitation in the Atacama Desert |
| Description: | Abstract: In the hyperarid Atacama Desert in northern Chile, rare precipitation events can leave long-lasting geomorphological traces and have strong impacts on biota. While moisture conveyor belts (MCBs) and atmospheric rivers (ARs) have been associated with extreme precipitation in semiarid regions, their role for the Atacama Desert has not been previously investigated. This study reveals that about four MCBs per year make landfall in the Atacama Desert. According to simulated precipitation, 40–80% of the total precipitation between the coast and the Andean foothills is associated with MCBs. A case study reveals an elevated moisture transport decoupled from the maritime boundary layer, which is generalized by a composite analysis. Back trajectories reveal the Amazon Basin as the main source of moisture. MCB landfall times are derived from the AR catalog by Guan and Waliser (2015), https://doi.org/10.1002/2015jd024257. Implications of the results on paleoclimate reconstructions are discussed. |
| Identifiers: | 10.1029/2021GL094372 (DOI) https://doi.org/10.1029/2021GL094372 (URL) |
| Citation Advice: | Böhm, C., Reyers, M., Knarr, L., & Crewell, S. (2021). The role of moisture conveyor belts for precipitation in the Atacama Desert. Geophysical Research Letters, 48, e2021GL094372. https://doi.org/10.1029/2021GL094372 |
Responsible Party
| Creators: | Christoph Böhm (Author), Mark Reyers (Author), Leon Knarr (Author), Susanne Crewell (Author) |
| Funding Reference: | Deutsche Forschungsgemeinschaft (DFG): CRC 1211: Earth - Evolution at the Dry Limit |
| Publisher: | American Geophysical Union |
| Publication Year: | 2021 |
Topic
| CRC1211 Topic: | Climate |
| Related Subprojects: | A1, A3 |
| Subject: | Keyword: Meteorology |
| Geogr. Information Topic: | Climatology/Meteorology/Atmosphere |
File Details
| Filename: | Boehm_et_al_2021_GRL_The_Role_of_Moisture_Conveyor_Belts_for_Precipitation_in_the_Atacama_Desert.pdf |
| Data Type: | Text - Article |
| File Size: | 4.8 MB |
| Dates: | Accepted: 28.10.2021 Available: 22.12.2021 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. |
| Access Limitations: | According to the CRC1211DB data policy agreement. |
| Licence: | [Creative Commons] Attribution-NonCommercial-NoDerivs 4.0 Unported (CC BY-NC-ND 4.0) |
Geographic
Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Geophysical Research Letters |
| Source Website: | https://doi.org/10.1029/2021GL094372 |
| Issue: | 24 |
| Volume: | 48 |
| Number of Pages: | 10 (1 - 10) |
Metadata Details
| Metadata Creator: | Christoph Böhm |
| Metadata Created: | 14.01.2022 |
| Metadata Last Updated: | 30.11.2023 |
| Subproject: | A1 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 207 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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