Modeling the impact of urban vegetation on ozone pollution
| Název práce v češtině: | Modelování vlivu městské vegetace na znečištění ozonem |
|---|---|
| Název v anglickém jazyce: | Modeling the impact of urban vegetation on ozone pollution |
| Klíčová slova: | ozon|městská vegetace|modelování|chemicko transportní model|emise|biogenní emise|depozice |
| Klíčová slova anglicky: | ozone|urban vegetation|mndoelling|chemistry transport model|emission|biogenic emissions|deposition |
| Akademický rok vypsání: | 2025/2026 |
| Typ práce: | disertační práce |
| Jazyk práce: | angličtina |
| Ústav: | Katedra fyziky atmosféry (32-KFA) |
| Vedoucí / školitel: | doc. Mgr. Peter Huszár, Ph.D. |
| Řešitel: | skrytý - zadáno a potvrzeno stud. odd. |
| Datum přihlášení: | 02.10.2025 |
| Datum zadání: | 02.10.2025 |
| Datum potvrzení stud. oddělením: | 02.10.2025 |
| Konzultanti: | RNDr. Kateřina Šindelářová, Ph.D. |
| Zásady pro vypracování |
| The student will gain a solid understanding of processes responsible for urban ozone formation and removal: photochemical production from anthropogenic and biogenic precursors, dry-deposition and transport.
The methods to model the fluxes of biogenic volatile organic compounds (BVOC) will be learned as well including the MEGAN biogenic emission model. High resolution input data on urban landcover (vegetation) will be compiled to feed MEGAN with accurate data including plant-functional-type (PFT) and leaf-area-index (LAI) data. The student also will familiarize him/herself with the chemistry transport model CAMx which will be used to model the impact of urban BVOC on ozone concentrations. CAMx will be applied over selected central European cities at high resolution (1 km x 1 km). Besides the impact of emissions, the student will analyze also the impact of dry-deposition on ozone due to presence of urban vegetation. Lastly, the research will cover the quantification of the impact of possible future urban green scenarios of urban ozone. |
| Seznam odborné literatury |
| Liaskoni, M., Huszár, P., Bartík, L., Prieto Perez, A. P., Karlický, J., and Šindelářová, K.: The long-term impact of biogenic volatile organic compound emissions on urban ozone patterns over central Europe: contributions from urban and rural vegetation, Atmos. Chem. Phys., 24, 13541–13569, https://doi.org/10.5194/acp-24-13541-2024, 2024.
Huszar, P., Karlický, J., Bartík, L., Liaskoni, M., Prieto Perez, A. P., and Šindelářová, K.: Impact of urbanization on gas-phase pollutant concentrations: a regional-scale, model-based analysis of the contributing factors, Atmos. Chem. Phys., 22, 12647–12674, https://doi.org/10.5194/acp-22-12647-2022, 2022. von Schneidemesser, E., Monks, P. S., Gros, V., Gauduin, J., and Sanchez, O.: How important is biogenic isoprene in an urban environment? A study in London and Paris, Geophys. Res. Lett., 38, L19804, https://doi.org/10.1029/2011GL048647, 2011. Gao, Y., Ma, M., Yan, F., Su, H., Wang, S., Liao, H., Zhao, B., Wang, X., Sun, Y., Hopkins, J. R., and Chen, Q.: Impacts of biogenic emissions from urban landscapes on summer ozone and secondary organic aerosol formation in megacities, Sci. Total Environ., 814, 152654, https://doi.org/10.1016/j.scitotenv.2021.152654 2022 Gao, Y., Yan, F., Ma, M., Ding, A., Liao, H., Wang, S., Wang, X., Zhao, B., Cai, W., Su, H., and Yao, X.: Unveiling the dipole synergic effect of biogenic and anthropogenic emissions on ozone concentrations, Sci. Total Environ., 818, 151722, https://doi.org/10.1016/j.scitotenv.2021.151722, 2022 Ma, M., Gao, Y., Ding, A., Su, H., Liao, H., Wang, S., and Gao, H.: Development and assessment of a high-resolution biogenic emission inventory from urban green spaces in China, Environ. Sci. Technol., 56, 175–184, https://doi.org/10.1021/acs.est.1c06170, 2021 |
| Předběžná náplň práce v anglickém jazyce |
| Urban air pollution represents a large health burden to urban population so understating the control mechanisms determining the spatio-temporal distribution of key pollutants is crucial. Ozone belongs to one of the most important pollutants in urban environment produced during the warm season via the reactions of VOC and NOx within photochemistry triggered by solar radiation. As vegetation represents a flux of natural VOC called biogenic VOC, it is clear that urban vegetation has to be considered as BVOC emitter. Moreover, the importance of urban BVOC emissions lie also in the fact that they are emitted within a NOx-rich environment, so they efficiently contribute to ozone formation. Lastly, urban vegetation acts also as a sink for ozone and its precursors via dry-deposition. These are however complex non-linear processes, thus to quantify the urban ozone budget and the role of urban vegetation, chemistry transport models have to be applied at high resolution over the selected urban areas. |