Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Identification of weather patterns impacting 24-h average fine particulate matter pollution
AbstractMethods are presented to extract intra-seasonal meteorological patterns at three scales to explain 24-h fine particulate matter (PM2.5) pollution events: evolving large-scale meteorological scenarios, synoptic regimes driving diurnal variability near the surface, and localized meteorological triggers. The methods were applied to understand how winter weather conditions impacted PM2.5 around the San Francisco Bay Area (SFBA). Analyzing data across 12 winters (November–March) ensured robust characterization of the SFBA conditions. SFBA 24-h PM2.5 exceedances (35μg m−3) required several simultaneous characteristics: a ridge of aloft high pressure moving over SFBA, providing weak surface pressure gradients over Central California; persistent easterly flows through SFBA extending vertically to around the 925-hPa pressure level; orographically channeled winds resulting from stability; enhanced nocturnal cooling under clear-sky conditions providing for enhanced drainage flows off the Central California slopes; and at least two consecutive days of these conditions.
Identification of weather patterns impacting 24-h average fine particulate matter pollution
AbstractMethods are presented to extract intra-seasonal meteorological patterns at three scales to explain 24-h fine particulate matter (PM2.5) pollution events: evolving large-scale meteorological scenarios, synoptic regimes driving diurnal variability near the surface, and localized meteorological triggers. The methods were applied to understand how winter weather conditions impacted PM2.5 around the San Francisco Bay Area (SFBA). Analyzing data across 12 winters (November–March) ensured robust characterization of the SFBA conditions. SFBA 24-h PM2.5 exceedances (35μg m−3) required several simultaneous characteristics: a ridge of aloft high pressure moving over SFBA, providing weak surface pressure gradients over Central California; persistent easterly flows through SFBA extending vertically to around the 925-hPa pressure level; orographically channeled winds resulting from stability; enhanced nocturnal cooling under clear-sky conditions providing for enhanced drainage flows off the Central California slopes; and at least two consecutive days of these conditions.
Identification of weather patterns impacting 24-h average fine particulate matter pollution
Beaver, Scott (Autor:in) / Palazoglu, Ahmet (Autor:in) / Singh, Angadh (Autor:in) / Soong, Su-Tzai (Autor:in) / Tanrikulu, Saffet (Autor:in)
Atmospheric Environment ; 44 ; 1761-1771
01.02.2010
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Comparative spatiotemporal analysis of fine particulate matter pollution
| Online Contents | 2010
Pollution from fine particulate matter and atherosclerosis: A narrative review
| DOAJ | 2023
A source apportionment of U.S. fine particulate matter air pollution
| Elsevier | 2011