Szczegóły publikacji
Opis bibliograficzny
Impact of foehn wind on $PM_{10}$ concentrations and urban boundary layer structure in the complex terrain: a case study from Kraków, Poland / Piotr SEKUŁA, Anita Bokwa, Zbigniew Ustrnul, Mirosław ZIMNOCH, Bogdan Bochenek // W: Climate, environment, economy, society [Dokument elektroniczny] : XXXIX international conference of Agrometeorologists and Climatologists : 28-29 September, 2020 Krakowa : abstracts of papers and posters = Klimat, środowisko, gospodarka, społeczeństwo : XXXIX międzynarodowa konferencja Agrometeorologów i Klimatologów : 28-29 września 2020r., Kraków : streszczenia referatów i posterów. — Wersja do Windows. — Dane tekstowe. — [Kraków : Uniwersytet Rolniczy im. Hugona Kołłątaja], [2020]. — Dysk Flash. — S. 34. — Wymagania systemowe: Adobe Reader. — P. Sekuła - dod. afiliacja: Institute of Meteorology and Water Management – National Research Institute
Autorzy (5)
- AGHSekuła Piotr
- Bokwa Anita
- Ustrnul Zbigniew
- AGHZimnoch Mirosław
- Bochenek Bogdan
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 132370 |
|---|---|
| Data dodania do BaDAP | 2021-02-01 |
| Rok publikacji | 2020 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie |
Abstract
Kraków, southern Poland, has abundant PM10 concentrations, and is located in the area affected by a foehn wind ’halny’ from the Carpathian Mts. There were 14 episodes of ‘halny’ analyzed, from the periods Sep. 2017-Apr. 2018 and Sep. 2018-Apr. 2019. Four spatial-temporal patterns of PM10 concentrations, were defined: 1. sudden, large increase of PM10 concentrations at all measurement points, 2. sudden, large decrease of PM10 concentrations at all measurement points, 3. short-term peaks or long-term periods of high PM10 concentrations in the western part of the city only, 4. longterm periods of high PM10 concentrations at all measurement points. A conceptual model concerning the impact of ‘halny’ on urban air pollution was developed. The modes of ‘halny’ transfer include: a. ‘halny’ flows above the valley where a strong cold air pool and a return flow can be found; b. ’halny’ enters the valley from the east or from the valley top and destroys cold air pool; c. gravity waves generated by ’halny’ are strong enough to enter the western, narrow part of the valley and cause large spatial differences in turbulence parameters within the city. The first transfer mode worsens the air pollution dispersion conditions in the whole city and leads to large increases in PM10 levels, the second transfer mode improves the dispersion conditions and leads to large decreases in PM10 levels in the whole city, and the third mode generates large spatial differences in PM10 levels within the city.
