Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 8, issue 10
Articles | Volume 8, issue 10
https://doi.org/10.5194/gmd-8-3105-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/gmd-8-3105-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 8, issue 10
Development and technical paper
 | 
06 Oct 2015
Development and technical paper |  | 06 Oct 2015

Assessment of valley cold pools and clouds in a very high-resolution numerical weather prediction model

J. K. Hughes, A. N. Ross, S. B. Vosper, A. P. Lock, and B. C. Jemmett-Smith

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Short summary
The formation of cold air pools in valleys under stable conditions represents an important challenge for numerical weather prediction (NWP). In this study a two-month cold pool simulation is presented using a high-resolution NWP model. Results are compared to observations and assumptions made in the cloud parametrization scheme about the sub-grid variability of humidity are shown to dominate model bias. Our results show that this is a key area for very high resolution modelling development.
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