Trzeciak, T, Garcia-Carreras, L orcid.org/0000-0002-9844-3170 and Marsham, JH orcid.org/0000-0003-3219-8472 (2017) Cross Saharan transport of water vapour via recycled cold-pool outflows from moist convection. Geophysical Research Letters, 44 (3). pp. 1554-1563. ISSN 0094-8276
Abstract
Very sparse data has previously limited observational studies of meteorological processes in the Sahara. We present an observed case of convectively-driven water vapour transport crossing the Sahara over 2.5 days in June 2012, from the Sahel in the south to the Atlas in the north. A daily cycle is observed, with deep convection in the evening generating moist cold pools that fed the next day’s convection; the convection then generated new cold pools, providing a vertical recycling of moisture. Trajectories driven by analyses were able to capture the direction of the transport but not its full extent, particularly at night when cold pools are most active, and analyses missed much of the water content of cold pools. The results highlight the importance of cold pools for moisture transport, dust and clouds, and demonstrate the need to include these processes in models in order to improve the representation of Saharan atmosphere
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 American Geophysical Union. All rights reserved. This is an author produced version of a paper published in Geophysical Research Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | sahara; cold pool outflows; moisture recycling; moist convection; water vapour transport |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Funding Information: | Funder Grant number Innovate UK fka Technology Strategy Board (TSB) 131554 TS/L00741X/1 NERC NE/L005352/1 NERC NE/G017166/1 NERC No External Ref |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Jan 2017 16:18 |
Last Modified: | 18 Jul 2017 04:16 |
Published Version: | https://doi.org/10.1002/2016GL072108 |
Status: | Published |
Publisher: | American Geophysical Union (AGU) |
Identification Number: | 10.1002/2016GL072108 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:110103 |