Results 171 to 180 of about 295 (207)
Cold‐air pool evolution in a wide Pyrenean valley
International Journal of Climatology, 2018 This study on cold‐air pool formation in the wide Cerdanya Valley in the Pyrenees mountain range was conducted using available observational information from September 2010 to August 2014. Cold‐air pools occur during almost 60% of the nights, mainly during winter. Cold pools develop even under significant synoptic pressure gradients.
Davide Tabarelli +2 more
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Dynamically Induced Displacements of a Persistent Cold-Air Pool [PDF]
Boundary-Layer Meteorology, 2014 We examine the influence of a passing weather system on a persistent cold-air pool (CAP) during the Persistent Cold-Air Pool Study in the Salt Lake Valley, Utah, USA. The CAP experiences a sequence of along-valley displacements that temporarily and partially remove the cold air in response to increasing along-valley winds aloft.
Neil Lareau, John Horel
exaly +2 more sources
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The Persistent Cold-Air Pool Study
Bulletin of the American Meteorological Society, 2013The Persistent Cold-Air Pool Study (PCAPS) was conducted in Utah's Salt Lake valley from 1 December 2010 to 7 February 2011. The field campaign's primary goal was to improve understanding of the physical processes governing the evolution of multiday cold-air pools (CAPs) that are common in mountain basins during the winter.
Erik Crosman, Neil Lareau, John Horel
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Cold‐air pools as microrefugia for ecosystem functions in the face of climate change
Ecology, 2022AbstractCold‐air pooling is a global phenomenon that frequently sustains low temperatures in sheltered, low‐lying depressions and valleys and drives other key environmental conditions, such as soil temperature, soil moisture, vapor pressure deficit, frost frequency, and winter dynamics.
Melissa A. Pastore +4 more
openaire +3 more sources
Interactions Between Downslope Flows and a Developing Cold-Air Pool [PDF]
Boundary-Layer Meteorology, 2014 A numerical model has been used to characterize the development of a region of enhanced cooling in an alpine valley with a width of order $$10$$ km, under decoupled stable conditions.
Paul Burns +2 more
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Cold-Air Pooling in the Upper Douro Valley: An Observational Study
Journal of Applied Meteorology and Climatology, 2022Abstract Cold-air pools can have several different impacts on viticulture, including final grape quality and yields. This study focuses on cold pools in the upper Douro Valley, which is one of the most important viticultural regions of northern Portugal.
Michael G. Sanderson +2 more
openaire +1 more source
Meteorology and Atmospheric Physics, 1990
Cold pools over Europe and the surrounding seas during the years 1974 to 1983 are briefly analysed regarding their seasonal and geographical distribution as well as their motion, size and other features. Certain criteria are established to identify cold pools.
M. C. Llasat, M. Puigcerver
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Cold pools over Europe and the surrounding seas during the years 1974 to 1983 are briefly analysed regarding their seasonal and geographical distribution as well as their motion, size and other features. Certain criteria are established to identify cold pools.
M. C. Llasat, M. Puigcerver
openaire +1 more source
Observations and Simulations of Cold Air Pooling in Valleys
Boundary-Layer Meteorology, 2009A series of surveys was carried out with an instrumented vehicle along the A361 in south-west England between 20 January and 4 April 2007, primarily during clear calm nights in order to observe the formation of pools of cold air in valleys. High resolution simulations were performed for three of these cases using the Met Office Unified Model (MetUM ...
S. A. Smith +4 more
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Large-eddy simulations of a Salt Lake Valley cold-air pool [PDF]
Atmospheric Research, 2017 Persistent cold-air pools are often poorly forecast by mesoscale numerical weather prediction models, in part due to inadequate parameterization of planetary boundary-layer physics in stable atmospheric conditions, and also because of errors in the initialization and treatment of the model surface state.
Erik Crosman, John Horel
exaly +2 more sources
Nested Large-Eddy Simulations of the Displacement of a Cold-Air Pool by Lee Vortices
Boundary-Layer Meteorology, 2020Mesoscale simulations are typically performed at coarse resolutions that do not adequately represent underlying topography; nesting large-eddy simulations within a mesoscale model can better resolve terrain and hence capture topographically-induced stable flow phenomena.
Alex Connolly +2 more
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