Articles | Volume 20, issue 10
Atmos. Chem. Phys., 20, 6129–6145, 2020
https://doi.org/10.5194/acp-20-6129-2020

Special issue: Tropospheric profiling (ISTP11) (AMT/ACP inter-journal SI)

Atmos. Chem. Phys., 20, 6129–6145, 2020
https://doi.org/10.5194/acp-20-6129-2020

Research article 26 May 2020

Research article | 26 May 2020

The vertical structure and spatial variability of lower-tropospheric water vapor and clouds in the trades

Ann Kristin Naumann and Christoph Kiemle

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Latest update: 16 Sep 2021
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Short summary
The interaction of water vapor and cloudiness poses challenges for weather and climate models. In this study we compare airborne lidar measurements from two field campaigns in the tropical Atlantic with high-resolution simulations. We find that at kilometer-scale grid spacing, the simulations show good skill in reproducing the water vapor distribution in the trades but struggle to capture the transition from cloud-free to low cloud fraction with increasing moisture.
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