Show simple item record

contributor authorPrice, J. D.
contributor authorVosper, S.
contributor authorBrown, A.
contributor authorRoss, A.
contributor authorClark, P.
contributor authorDavies, F.
contributor authorHorlacher, V.
contributor authorClaxton, B.
contributor authorMcGregor, J. R.
contributor authorHoare, J. S.
contributor authorJemmett-Smith, B.
contributor authorSheridan, P.
date accessioned2017-06-09T16:38:59Z
date available2017-06-09T16:38:59Z
date copyright2011/12/01
date issued2011
identifier issn0003-0007
identifier otherams-71563.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4213469
description abstractable nighttime periods, large variations in temperature and visibility often occur over short distances in regions of only moderate topography. These are of great practical significance and yet pose major forecasting challenges because of a lack of detailed understanding of the processes involved and because crucial topographic variations are often not resolved in current forecast models. This paper describes a field and numerical modeling campaign, Cold-Air Pooling Experiment (COLPEX), which addresses many of the issues. The observational campaign was run for 15 months in Shropshire, United Kingdom, in a region of small hills and valleys with typical ridge?valley heights of 75?150 m and valley widths of 1?3 km. The instrumentation consisted of three sites with instrumented flux towers, a Doppler lidar, and a network of 30 simpler meteorological stations. Further instrumentation was deployed during intensive observation periods including radiosonde launches from two sites, a cloud droplet probe, aerosol monitoring equipment, and an instrumented car. Some initial results from the observations are presented illustrating the range of conditions encountered. The modeling phase of COLPEX includes use of the Met Office Unified Model at 100-m resolution, and some brief results for a simulation of an intensive observation period are presented showing the model capturing a cold-pool event. As well as aiding interpretation of the observations, results from this study are expected to inform the design of future generations of operational forecasting systems
publisherAmerican Meteorological Society
titleCOLPEX: Field and Numerical Studies over a Region of Small Hills
typeJournal Paper
journal volume92
journal issue12
journal titleBulletin of the American Meteorological Society
identifier doi10.1175/2011BAMS3032.1
journal fristpage1636
journal lastpage1650
treeBulletin of the American Meteorological Society:;2011:;volume( 092 ):;issue: 012
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record