Results 11 to 20 of about 295 (207)

Time scale for cold-air pool breakup by turbulent erosion

open access: yesMeteorologische Zeitschrift, 2003
Turbulent erosion has been proposed as a major mechanism for removing wintertime cold-air pools (CAPs) from basins and valleys. The time scales involved in this erosion process, which are of great interest for winter weather forecasting, have not been ...
Shiyuan Zhong   +2 more
doaj   +2 more sources

Numerical simulation and its optimization of cold air pools in the Lanzhou Valley

open access: yesMeteorological Applications
Persistent cold air pools (CAPs) trap pollutants in valleys for extended periods, leading to reduced visibility and increased air pollution within these valleys.
Minjin Ma   +3 more
doaj   +2 more sources

Pollutant Dispersion in a Developing Valley Cold-Air Pool [PDF]

open access: yesBoundary-Layer Meteorology, 2014
Pollutants are trapped and accumulate within cold-air pools, thereby affecting air quality. A numerical model is used to quantify the role of cold-air-pooling processes in the dispersion of air pollution in a developing region of enhanced cooling within an Alpine valley under decoupled stable conditions.
Charles Chemel, Paul Burns
openaire   +1 more source

Nocturnal cold air drainage and pooling in a tropical forest [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2006
The usefulness of eddy covariance for understanding terrestrial carbon exchange has been hampered by uncertainty over the magnitude and causes of a systematic underestimation of CO2 efflux on calm nights. We combined in situ measurements of the temperature, wind and CO2 profile with nocturnal Land Surface Temperature (LST) imagery from the Advanced ...
Goulden, M. L.   +2 more
openaire   +2 more sources

Evolution of Cold-Air-Pooling Processes in Complex Terrain [PDF]

open access: yesBoundary-Layer Meteorology, 2013
Elucidating cold-air-pooling processes forms part of the longstanding problem of parametrizing the effects of complex terrain in larger-scale numerical models. The Weather Research and Forecasting model has been set-up and run at high resolution over an idealized alpine-valley domain with a width of order 10 km, to investigate the four-dimensional ...
Paul Burns, Charles Chemel
openaire   +1 more source

Sub-mesoscale observations of convective cold pools with a dense station network in Hamburg, Germany [PDF]

open access: yesEarth System Science Data, 2022
From June to August 2020, an observational network of 103 meteorological ground-based stations covered the greater area (50 km × 35 km) of Hamburg (Germany) as part of the Field Experiment on Sub-mesoscale Spatio-Temporal variability at Hanseatic city ...
B. Kirsch   +11 more
doaj   +1 more source

Spatial heterogeneity of the Inn Valley Cold Air Pool during south foehn: Observations from an array of temperature loggers during PIANO

open access: yesMeteorologische Zeitschrift, 2021
Interactions between foehn and mountain-valley cold air pools (CAPs) strongly influence severe weather and air quality at the valley bottom, but have seen limited research compared to the fully established foehn phase. The Penetration and Interruption of
Thomas Muschinski   +4 more
doaj   +1 more source

Cold Pool‐Land Surface Interactions in a Dry Continental Environment

open access: yesJournal of Advances in Modeling Earth Systems, 2018
Cold pools influence convective initiation and organization, dust lofting, and boundary layer properties, but little is known about their interactions with the land surface, particularly in dry continental environments.
Leah D. Grant, Susan C. van denHeever
doaj   +1 more source

Causes and meso-scale characteristics of the short-duration rainstrom in Nanchang on 29 June 2022

open access: yes暴雨灾害, 2023
With the Meiyu front rain belt weakened toward the south during June 26 to 29, 2022, the rainfall in Jiangxi was significantly strengthened on June 29. A narrow and strong regional rainstorm belt appeared in the north of Jiangxi, especially in the main ...
Yunhui CHEN   +3 more
doaj   +1 more source

The impact of a foehn wind on PM10 concentrations and the urban boundary layer in complex terrain: a case study from Kraków, Poland

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2021
Kraków, Poland, is a city with poor air quality, located in the large Wisła (Vistula) valley, and affected by a foehn wind from the Tatra Mountains. We analyzed 14 long episodes of the foehn from the periods Sep 2017 - Apr 2018 and Sep 2018 - Apr 2019 ...
Piotr Sekuła   +4 more
doaj   +1 more source

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