The impact of sea breeze under different synoptic patterns on air pollution within Athens basin

Visualising the relationships between synoptic circulation type and air quality in Sydney, a subtropical coastal‐basin environment

“…In summary, this analysis has provided further insights into how the subtle changes in synoptic features impact the spatial variability in local meteorological conditions and subsequently, the spatial patterns of mean O 3 concentrations in Sydney. Consistent with the present analysis, many studies undertaken for other coastal urban environments, e.g., Mavrakou et al (), Papanastasiou and Melas () and Lu and Turco (), also found that sea breezes and/or drainage flows can play an important role in the formation and transport of photochemical pollution. Some studies in other locations showed that emissions from bushfires can contribute considerably to elevated O 3 pollution downwind under favourable meteorological conditions (Jaffe and Wigder, ).…”

“…The results highlight the complex interactions between synoptic gradient winds and mesoscale flows in Sydney, a coastal-basin environment. Such synoptic type/sea breeze interactions were also identified by studies for different coastal environments, e.g., Mavrakou et al (2012) for Athens basin and Lu and Turco (1995) for Los Angeles basin. To aid future application of the warm-month synoptic catalogue, further information on the frequency of occurrence, persistence, transition and correlation of synoptic types is presented in Figures S2-S3 and Appendix S4.…”

“…Air quality/synoptic type relationships can also vary across time, location and pollutant due in part to orographic effects and spatial variations in emissions (Shahgedanova et al, 1998;Greene et al, 1999;Jiang et al, 2014). In urban coastal environments, some studies highlighted that the coupling of synoptic and meso-scale circulations plays a critical role during high pollution episodes (e.g., Kallos et al, 1993;Moorthy et al, 2003;Mavrakou et al, 2012).…”

Sea breeze front identification on the northeastern coast of Brazil and its implications for meteorological conditions in the Sergipe region

“…Surprisingly, even with the overabundance of studies in the literature, there are still several critical questions regarding the influence of the sea breeze on meteorological conditions that have not been discussed in depth. Several studies have shown that the sea breeze can be associated with adverse meteorological conditions, such as complex situations for air pollution by transport and dispersion processes (Clappier et al 2000;Mavrakou et al 2012;Papamanolis 2015;Papanastasiou and Melas 2009;Yimin and Lyons 2003), thunderstorm genesis (Bhate et al 2016), fire whirl occurrence (Seto and Clements 2011), and effects on microwave propagation along the coastal belt (Radha Krishna Rao and Purnachandra Rao 2005;Reddy and Reddy 2007). However, few studies have given attention to the interaction between sea breeze and thermal effect by examining the temperature and solar radiation rises.…”

Three year study of tropospheric ozone with back trajectories at a metropolitan and a medium scale urban area in Greece

“…Specifically for the case of Athens (Greece), 34 ozone pollution events within the 2000-2003 period, were associated with the prevalence of variable weak winds (Hatzianastassiou et al, 2007). In addition, it was deduced that due to sea-breeze, higher ozone concentrations are recorded to the southern and northern parts of the Athens basin (Flocas et al, 2003), whereas day-to-day O 3 accumulation is measured at the northern stations (Mavrakou et al, 2012).…”