The persistent cold-air pool study

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August undefined, 2024

Webb7 nov. 2016 · AbstractStable cold pools in California’s Central Valley (CV) are conducive to freezing temperatures, high relative humidity, and, in some cases, fog. In this study it will be shown that the Weather Research and Forecasting (WRF) Model as commonly configured cannot reproduce such conditions because of a persistent warm and dry bias near the … Webb17 dec. 2024 · Processes of cold-air pool (CAP) erosion in an Alpine valley during south foehn are investigated based on a real-case large-eddy simulation (LES). The event occurred during the second Intensive Observation Period (IOP 2) of the PIANO field experiment in the Inn Valley, Austria, near the city of Innsbruck.

Dynamically Induced Displacements of a Persistent - Springer

WebbIn this study, we use data collected in the Salt Lake Valley of northern Utah during the Persistent Cold-Air Pool Study (PCAPS, Lareau et al. 2013) to examine the passage of a shortwave trough during a multi-day CAP. This trough–CAP interaction produced a variety of waves, displacement and fronts that disrupted the otherwise quiescent CAP. In the WebbFIG. 4. Photos of SLV inversions during PCAPS (photo credits are in parentheses): (a) 14 Jan 2011: combined fog and pollutants (Sebastian Hoch); (b) 2 Dec 2010: cloud-free deep (~700 m) polluted layer (Chris Santacroce); (c) 16 Jan 2011: thin surface layer (<100 m) of fog and pollution (James Ehleringer); (d) 30 Jan 2011: cloudy inversion (John Horel); (e) … fisher and paykel water filter replacement

A short climatological study of cold air pools and drainage flows …

WebbThe 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 … WebbThe 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 … Webb16 maj 2024 · Cold air pools (CAPs) are identified. CAPs are a common wintertime (NDJ) phenomenon which combines local, synoptic, and large-scale processes. No long-term trend was found either in the CAP ocurrence... canada post offices kelowna

Confronting Uncertainties of Simulated Air Pollution …

Drivers of severe air pollution events in a deep valley during ...

Webb16 dec. 2015 · Case studies of lake breezes during wintertime cold air pools in Utah’s Salt Lake Valley are examined. While summer breezes originating from the Great Salt Lake are typically deeper, of longer duration, and have higher wind speeds than winter breezes, the rate of inland penetration and cross-frontal temperature differences can be higher during … Webb1 jan. 2013 · The 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 … canada post office stamp pricesWebbtrolling the persistence of cold-air pools. The imposed pressure gradient due to the geostrophic wind was im-portant in controlling the amount of drainage from the valley. Once again, turbulent mixing was found to be of minor importance for cold-air-pool erosion. The formation of cold pools has received much less attention. An idealized … canada post offices and postmasters

"Webb31 jan. 2014 · A cold air pool (CAP) is a topographically confined, stagnant layer of air that is colder than the air above [ Whiteman et al ., 2001 ]. A CAP can fall into one of the two … " - The persistent cold-air pool study

The persistent cold-air pool study

Surface Turbulent Fluxes during Persistent Cold-Air Pool Events

Webb17 juni 2014 · Persistent cold-air pools are often poorly forecast by mesoscale numerical weather prediction models, in part due to inadequate parameterization of planetary … WebbThe Persistent Cold-Air Pool Study (PCAPS), which took place in Utah’s Salt Lake Valley during winter 2010-2011, provides a rich dataset of targeted observations at scales appropriate for better understanding the dynamical evolution of persistent cold-air pools. We examine the influence of the land use and land cover datasets available within the …

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Webb1 aug. 2024 · Abstract Persistent cold pools form as layers of cold stagnant air within topographical depressions mainly during wintertime, when the near-surface air cools … Webb15 feb. 2024 · The Arve river valley airshed in the French Alps experiences particularly severe air pollution during wintertime stable atmospheric conditions associated with persistent cold-air pools. PM 10 data recorded in the region indicate that the urbanised area of the central basin-shape section of the valley is generally the most polluted, with a …

Webb12 sep. 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. The … Webb1 maj 2024 · The Persistent Cold-Air Pool Study (PCAPS) was conducted in Utah's Salt Lake valley from 1 December 2010 to 7 February 2011.

WebbThis study presents a meteorologically-based methodology for quantifying basin-scale methane (CH 4 ) emissions in Utah’s Uintah Basin, which is home to over 9,000 active … WebbThe Persistent Cold-Air Pool Study (PCAPS) was conducted in Utah's Salt Lake Valley in the winter of 2010-2011 to investigate the meteorological factors affecting the …

Webb1 dec. 2010 · PCAPS: Persistent Cold-Air Pool Study Summary Research Objectives: * determine processes responsible for formation, maintenance and destruction of multi-day wintertime temperature inversions or cold-air pools, * evaluate their influence on pollutant transport and mixing, and * determine how models can be improved to make more …

WebbCold-air pools (CAPs) occur when cold air is topo-graphically trapped within a valley or basin and with warmer air aloft. CAPs are associated with limited mixing and weak … canada post office smiths fallsWebb1 jan. 2013 · The 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 … canada post officer salaryWebb1 sep. 2024 · Modelling studies of several persistent Salt Lake Valley cold-air pools during PCAPS were also conducted by Wei et al. (2013), Lu and Zhong (2014), and Foster et al. (2024), but these simulations were run at typical mesoscale model resolutions (1–3 km Δx) and did not occur during a prolonged period of turbulent erosion on the upper boundary … canada post offices in winnipegWebb15 sep. 2024 · The Persistent Cold-Air Pool Study (PCAPS) was conducted in northern Utah from December 2010 to February 2011 (Lareau et al., 2013). There were ten … fisher and paykel white dishdrawerWebb1 dec. 2024 · Abstract The land surface is coupled to the atmospheric boundary layer through surface turbulent fluxes. Persistent cold-air pools (PCAPs) form in topographic … fisher and paykel wl80t65cw1Webb1 dec. 2024 · Persistent cold pools have been observed in many basins around the world including the Colorado plateau basin ( Whiteman et al. 1999 ), the Salt Lake basin ( … canada post offices ottawaWebb15 sep. 2024 · The Persistent Cold-Air Pool Study (PCAPS) was conducted in northern Utah from December 2010 to February 2011 (Lareau et al., 2013). There were ten … canada post office thunder bay