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

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

doi:https://doi.org/10.5194/gmd-8-3105-2015

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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Final revised paper (published on 06 Oct 2015)
Preprint (discussion started on 16 Jun 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C1448: 'Review of "Assessment of valley cold pools and clouds in a very high resolution NWP model" by J.K. Hughes et al.', Anonymous Referee #1, 23 Jul 2015
- AC C1842: 'response to referee #1', John Hughes, 01 Sep 2015
RC C1618: 'Reviewer Comments on "Assessment of valley cold pools and clouds in a very high resolution NWP model" by J.K. Hughes et al.', Anonymous Referee #2, 04 Aug 2015', Anonymous Referee #2, 04 Aug 2015
- AC C1843: 'response to referee #2', John Hughes, 01 Sep 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by John Hughes on behalf of the Authors (01 Sep 2015) Author's response Manuscript

ED: Publish as is (16 Sep 2015) by Paul Ullrich

AR by John Hughes on behalf of the Authors (23 Sep 2015)

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.