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Browsing University of Hertfordshire by Author "Quimbayo-Duarte, Julian"
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Dispersion of tracers in the stable atmosphere of a valley opening onto a plain
Quimbayo-Duarte, Julian; Staquet, Chantal; Chemel, Charles; Arduini, Gabriele (2019-08-01)We quantify the impact of a valley-wind system on the transport of passive tracers in the stably-stratified atmosphere of a valley dynamically decoupled from the atmosphere above. The simple configuration of an idealized ... -
Drivers of severe air pollution events in a deep valley during wintertime: a case study from the Arve river valley, France
Quimbayo-Duarte, Julian; Chemel, Charles; Staquet, Chantal; Troude, Florence; Arduini, Gabriele (2021-02-15)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. PM10 data recorded in the region ... -
Impact of along-valley orographic variations on the dispersion of passive tracers in a stable atmosphere
Quimbayo-Duarte, Julian; Staquet, Chantal; Chemel, Charles; Arduini, Gabriele (2019-04-25)A numerical model is used to investigate the transport of passive tracers in an idealized Alpine valley during stable wintertime conditions after the evening transition. The valley is composed of an upstream-valley section, ...